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A complete 48V golf cart lithium conversion kit: the 230Ah battery, a 48V 22A onboard lithium charger with a 10 ft heavy-duty extension cord, a digital Bluetooth battery gauge, a 6 ft remote on/off power switch, a fused 48V to 12V step-down converter, a cart-specific charge port plug and free Bluetooth app access.
The Epoch 48V 230Ah golf cart battery complete kit (model BB51230A-Kit-1, Big Box Series) converts a compatible 48V golf cart from lead-acid to lithium without sourcing every part separately. One 51.2V (48V class), 230Ah, 11.78kWh LiFePO4 battery replaces a full bank of 8V or 12V lead-acid batteries. The kit adds a 48V 22A onboard lithium charger with a 10 ft heavy-duty extension cord, a digital Bluetooth battery gauge, a 6 ft remote on/off power switch with wiring harness, a fused 48V to 12V step-down converter rated 25A with a key-on wire, a cart-specific charge port plug to replace the factory charging receptacle and free access to the Epoch Li-Ion app. Mounting brackets are not included.
Key Features
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48V 230Ah Complete Golf Cart Conversion Kit: One 51.2V (48V class), 230Ah, 11.78kWh LiFePO4 battery replaces a full bank of 8V or 12V lead-acid batteries in compatible 48V golf carts. Choose the EZGO TXT configuration, or Other for compatible 48V carts; the stainless-steel case measures 23.5 × 14.4 × 9.9 in and weighs 196 lb.
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What's in the Kit: A 48V 22A onboard lithium charger with a 10 ft heavy-duty extension cord, a digital Bluetooth battery gauge, a 6 ft remote on/off power switch with wiring harness, a fused 48V to 12V step-down converter rated 25A with a key-on wire, a cart-specific charge port plug that replaces the factory charging receptacle, and free access to the Epoch Li-Ion app. Mounting brackets are not included: secure the battery with hold-down hardware rated for its 196 lb (89 kg) weight.
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300A Continuous, 1,000A Peak: 300A continuous discharge, 500A for up to 15 seconds and 1,000A for up to 2 seconds for acceleration, hills and upgraded controllers. Keep the controller's current settings within these ratings, and size conductors and overcurrent protection to the 300A continuous rating.
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Regen-Ready Charging: Accepts 230A continuous charge current and up to 500A for up to 15 seconds of regenerative braking current. The included 48V 22A charger charges the battery from empty in about 10.5 hours; Club Car carts with an On-Board Computer (OBC) may need an OBC bypass.
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Digital Gauge, App & OTA Updates: The included dash-mounted digital gauge and the free Epoch Li-Ion app (iOS and Android) show state of charge, voltage, current, temperature and warnings, and the app also shows battery health. Firmware can be updated over the air (OTA) through the app.
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IP67 Enclosure & Advanced BMS: Dust-tight and protected against temporary immersion to 1 m for 30 minutes; not rated for water jets or pressure washing. The BMS provides over-voltage, under-voltage, over-current, short-circuit and temperature protection, cell balancing and a low-charge warning.
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Temperature & Bank Limits: Charges from 0°C to 55°C (32°F to 131°F) with no internal heater, and discharges from −10°C to 55°C (14°F to 131°F). Up to 2 batteries in parallel (460Ah); series connection is not supported.
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4,000+ Cycle Life, No Watering: Rated for 4,000+ cycles, with no watering or acid service; routine inspections of the terminals, cables and mounting keep it operating safely.
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11-Year Limited Manufacturer Warranty: Covers qualifying defects in materials and workmanship under normal use, subject to Epoch Batteries' warranty terms. Register within 90 days of purchase for full coverage.
Key Benefits
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IP67 Waterproof: Dust-tight and protected against temporary immersion to 1 m for 30 minutes.
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4,000+ Cycle life: Over 10 years at one full cycle a day. Rated at the depth of discharge, charge rate and temperature stated on the datasheet, to its end-of-life capacity.
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iOS + Android Bluetooth app: Charge, voltage and temperature on your phone in the Epoch Li-Ion app.
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Advanced BMS Protection: Guards against overcharge, over-discharge, overcurrent and short circuit.
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LiFePO4 Thermal stability: Lithium iron phosphate has a far lower thermal-runaway risk than other lithium chemistries. The BMS adds over-temperature and low-temperature charge protection.
EZGO TXT and Other configurations
Choose EZGO TXT for an EZGO TXT cart: its charge port plug is matched to the cart. Choose Other for another compatible 48V cart, and confirm tray space for the 23.5 × 14.4 × 9.9 in case, mounting, cable routing and charge-port wiring before installation.
Mounting brackets are not included in either configuration: plan hold-down hardware rated for the battery's 196 lb (89 kg) weight. For EZGO TXT carts, the Mounting Bracket for EZGO TXT (BB51230-TXT1) is sold separately.
A Complete Lithium Conversion for 48V Carts
Replace a lead-acid bank with one 230Ah LiFePO4 golf cart battery.
This kit replaces a full bank of 8V or 12V lead-acid batteries with a single 51.2V (48V class) 230Ah LiFePO4 battery. The result is one battery instead of a bank, and no watering or acid service; routine inspections of the terminals, cables and mounting still keep it operating safely.
With 300A continuous discharge, 500A for up to 15 seconds and 1,000A for up to 2 seconds, it supports acceleration, hills and upgraded controllers and motors whose current demand fits the battery ratings. Before installing, confirm your cart is a compatible 48V platform, that the battery bay fits the 23.5 × 14.4 × 9.9 in case, and check terminal clearance, cable size, overcurrent protection, hold-down hardware and the controller's current settings.
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One 196 lb Battery for the Whole Bank: A single 196 lb (89 kg) battery in a 23.5 × 14.4 × 9.9 in (597 × 366 × 251 mm) stainless-steel case takes the place of a full bank of 8V or 12V lead-acid batteries. Secure it with hold-down hardware rated for its weight, and use suitable lifting equipment or enough people to lift it safely. No watering, no acid service.
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11.78kWh of Nominal Energy: 230Ah at 51.2V, 11,776Wh nominal. Range depends on terrain, passenger weight, tire size, lift kits, controller tuning, motor condition, speed and accessory load; track your own usage with the gauge and the app to learn your cart's range.
What's in the Box
The core conversion components in one kit.
Instead of sourcing a battery, charger, extension cord, gauge, remote switch, converter and charge port separately, the kit brings the main conversion components together. The listed kit contents do not include mounting brackets or a main fuse or DC-rated breaker: secure the battery with hold-down hardware rated for its 196 lb (89 kg) weight, install a fuse or breaker selected for the wire, load and system voltage, as close as practical to the battery positive terminal, and make sure the cables and lugs are sized for your installation.
Two converter wires are black: confirm the input negative and the output negative before connecting, since reversing them can damage the converter or the accessories. Turn the battery off and disconnect the charger before wiring the converter. The label does not specify fusing or connector pinout; follow the kit instructions or have a qualified installer confirm them for your cart.
12V converter wiring (from the converter label):
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48V 230Ah LiFePO4 battery: 51.2V (48V class), 230Ah and 11.78kWh (11,776Wh) of nominal stored energy from 16 prismatic LiFePO4 cells in series (16S1P). Stainless-steel IP67 case, 23.5 × 14.4 × 9.9 in (597 × 366 × 251 mm), 196 lb (89 kg), with built-in Bluetooth and BMS. Controls and ports: positive and negative terminals, a vent, an on/off switch and a communication port.
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48V 22A onboard lithium charger: A LiFePO4 charger that installs in the battery compartment and connects to the battery terminals, in place of the cart's original lead-acid charger. It is powered through the cart's charge port and charges the battery from empty in about 10.5 hours.
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10 ft heavy-duty extension cord: Included with the charger. Plug it into the cart's charge port and a standard 120V AC outlet to charge from outside the cart.
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Digital Bluetooth battery gauge: Mounts on the dashboard. Its digital display shows the state of charge from 0 to 100%, battery voltage, current and temperature, and shows warnings when the BMS raises an alarm.
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6 ft remote on/off power switch and wiring harness: The on/off switch (with LED) mounts on the dashboard, so you can turn the battery on and off from the driver's seat. The 6 ft harness connects the battery communication port, charger, switch and gauge; its CAN connector is for manufacturer or dealer BMS updates and does not need to be connected. For stretched carts where the 6 ft harness does not reach the dash, the 13 ft Extended Harness for LiMAX Big Box is sold separately.
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Fused 48V to 12V step-down converter (25A): Fused, with a key-on (enable) wire that connects to the cart's key switch, so the converter turns on with the key. Powers 12V headlights, light bars, radios and USB outlets from the 48V battery with a regulated supply: input 40–90V, output 13.5V. Keep the total 12V accessory load within its 25A rating.
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Cart-specific charge port plug: Replaces the cart's factory lead-acid charging receptacle, matched to your configuration, such as the EZGO TXT & RXV Charger Receptacle Plug for EZGO TXT carts. It passes AC power to the onboard lithium charger, so you charge from outside the cart with the included 10 ft extension cord. Replacing the original receptacle is required for safety.
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Free Epoch Li-Ion app access: Free for iOS and Android. The app connects to the battery's built-in Bluetooth to show state of charge, voltage, current, temperature, battery health and warnings on your phone, and installs firmware updates over the air (OTA).
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Not in the box: mounting brackets.: Secure the battery with hold-down hardware rated for its 196 lb (89 kg) weight so it cannot slide, tip or strike nearby equipment. For EZGO TXT carts, the Mounting Bracket for EZGO TXT (BB51230-TXT1) is sold separately.
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Yellow · 40–90V+: Input positive, from the 48V system
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Black · 40–90V−: Input negative, from the 48V system
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Orange · KEY ON+: Key-switch (enable) input
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Red · 13.5V+: Output positive, to 12V accessories
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Black · 13.5V−: Output negative, to 12V accessories
48V Cart Compatibility
EZGO TXT, plus other compatible 48V carts, neighborhood electric vehicles and utility vehicles.
- EZGO TXT, using the EZGO TXT configuration: the charge port plug is matched to the cart.
- Other compatible 48V golf carts, using the Other configuration: confirm tray space, mounting, cable routing and charge-port wiring.
- Neighborhood electric vehicles and utility vehicles.
- Commercial fleet and specialty 48V power systems.
- Carts with 12V lights and accessories powered through the included converter (25A maximum load).
- Upgraded controllers and motors whose current demand fits the battery ratings.
- Stretched carts: a 13 ft harness is available if the 6 ft switch harness does not reach the dash.
Kit features
High-current LiFePO4 power with included conversion components.
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230Ah and 11.78kWh: One 51.2V LiFePO4 battery with 230Ah and 11.78kWh (11,776Wh) of nominal stored energy.
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Complete conversion kit: Battery, 48V 22A lithium charger with 10 ft extension cord, digital Bluetooth gauge, 6 ft remote on/off switch, fused 48V to 12V converter and cart-specific charge port plug in one box, plus free app access.
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300A continuous discharge: For acceleration, hills and upgraded controllers. Size conductors and overcurrent protection to the 300A continuous rating.
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1,000A peak discharge: 500A for up to 15 seconds and 1,000A for up to 2 seconds, for short bursts only.
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Regen-ready charging: 230A continuous charge, and up to 500A for up to 15 seconds of regenerative braking current.
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Included 22A lithium charger: 48V 22A onboard charger with a LiFePO4 profile, powered through the cart's charge port with the 10 ft heavy-duty extension cord; about 10.5 hours from empty.
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Included 12V converter: Fused, with a key-on (enable) wire; a regulated 13.5V output for 12V lights, radios and USB outlets, up to 25A.
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Digital gauge, app and OTA: The included digital gauge and the free Epoch Li-Ion app (iOS and Android) show state of charge, voltage, current, temperature and warnings; the app updates the firmware over the air.
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IP67 enclosure: Dust-tight and protected against temporary immersion to 1 m for 30 minutes (IEC 60529); not rated for water jets or pressure washing.
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Advanced BMS: Over-voltage, under-voltage, over-current, short-circuit and temperature protection, with cell balancing and a low-charge warning.
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4,000+ cycle life: Rated for 4,000+ charge–discharge cycles.
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No watering or acid service: Maintenance-free compared with lead-acid; routine inspections keep it operating safely.
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11-year limited warranty: 11-year limited manufacturer warranty. Register within 90 days of purchase for full coverage.
Why upgrade your golf cart to lithium?
One battery instead of a bank, and no watering or acid service.
LiFePO4 (lithium iron phosphate) is a lithium-ion chemistry valued for thermal stability and long cycle life. Its voltage stays nearly flat across most of the discharge, and the battery needs no watering or acid service, only routine inspections.
Charging and everyday use
How the included charger, gauge and on/off switch work day to day.
- Charge with the included 48V 22A onboard lithium charger: plug the included 10 ft heavy-duty extension cord into the cart's charge port and a standard 120V AC outlet. A charge from empty takes about 10.5 hours. Lead-acid chargers use different profiles and will not properly charge or balance a LiFePO4 battery. Club Car carts with an On-Board Computer (OBC) may need an OBC bypass.
- Charge after each day's use, or at least once a week with occasional use, and avoid letting the state of charge fall below 20%.
- The battery charges whether its on/off switch is on or off. When it is full, the state of charge resets to 100% and the gauge reads 100%. If the charger stays connected, it restarts when the state of charge drops below about 95%.
- Disconnect the charger once the battery is full, and turn the battery off when the cart is not in use.
- There is no internal heater: the BMS blocks charging outside 0°C to 55°C (32°F to 131°F), so let a cold battery warm above freezing before charging.
- On/off: press the 6 ft remote on/off switch once to turn the battery on (the switch LED and gauge light up) and again to turn it off; disconnecting the harness also turns it off. The battery is on when either the switch on the case or the remote switch is on; to turn it off, both switches must be off.
- Automatic shutdown: with no discharge, the battery turns off after 7 days above 20% SOC, or after 24 hours at or below 20% SOC. Press the on/off switch twice to restart.
- Low-charge warning: below 20% SOC, the buzzer sounds and the gauge shows a warning. Charge as soon as possible.
- Power-down recovery: if any cell falls below 2.2V or the pack to about 38V, switch the battery on, then connect the charger immediately.
- Long-term storage: keep the state of charge between 60% and 90%, turn the battery off and store it dry at 10–35°C (50–95°F) where practical. Check the state of charge at least every 3 months and recharge as needed.
Gauge warnings and buzzer
The BMS reports alarms and protection events on the gauge, with the buzzer and in the app.
An alarm is an early warning; a protection event means the BMS has limited or stopped charging or discharging. Alarms beep 1 s on and 1 s off; protection events beep 0.2 s on and 0.2 s off. If the buzzer sounds while driving, slow down or stop and check the battery.
Low-voltage or low-charge warning: stop and charge the battery. Temperature warning: stop, let the battery return to its operating range, and check for blocked airflow or heavy sustained loads. Over-current warning: reduce the load and check the controller's current settings. Detection faults, MOSFET faults or a persistent cell-unbalance alarm: stop using the battery and contact Epoch support with the app screen and the gauge display.
Table columns: Gauge display | Cause | Notes
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WARNING2 / 4: Cell / pack low voltage | Not shown while charging
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WARNING5: Large cell-voltage difference | —
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WARNING6: Over-discharge | —
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WARNING7: Charging over-current | Not shown while charging
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WARNING8 / 9: Over-temperature / low temperature | Not shown while charging
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WARNING10: Large temperature difference | —
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WARNING11: Low SOC: 11–20% alarm; 0–10% protection | Not shown while charging
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WARNING14: External communication failure | —
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No display: Cell or pack over-voltage | No buzzer
Installation and safety
Verify your cart, configuration and hold-down hardware before installation.
Only authorized mechanics or technicians should install the battery. It weighs 196 lb (89 kg): use suitable lifting equipment or enough people to lift it safely. Confirm your cart is a compatible 48V platform and verify tray fitment (the 23.5 × 14.4 × 9.9 in case plus cable clearance), hold-down hardware rated for the battery's weight (mounting brackets are not included), the controller's continuous and peak current settings, cable routing, OBC requirements, charge-port and accessory wiring and charger installation.
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Step 1: Turn off the cart and all accessories, disconnect the cables safely and remove the original lead-acid batteries.
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Step 2: Prepare hold-down hardware rated for the battery's 196 lb (89 kg) weight, and install the charger in the compartment.
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Step 3: Replace the cart's factory charging receptacle with the supplied cart-specific charge port plug; this step is required for safety.
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Step 4: Mount the digital gauge and the remote on/off switch on the dashboard, and route the 6 ft wiring harness. For stretched carts that need more reach, use the 13 ft Extended Harness for LiMAX Big Box (sold separately).
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Step 5: Set the battery in the compartment and secure it with the hold-down hardware.
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Step 6: Connect the battery terminals to the charger's leads and to the cart's positive and negative cables, observing polarity.
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Step 7: Install the 12V converter: connect its key-on (enable) wire to the cart's key switch and its output to the 12V accessory circuits.
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Step 8: Connect the harness to the battery communication port, on/off switch, gauge and charger; switch on and confirm the gauge shows the state of charge. If it is low, charge before first use.
- Install a main fuse or DC-rated breaker as close as practical to the battery positive terminal. The internal BMS does not replace external overcurrent protection for the wiring.
- Size loads, conductors and overcurrent protection to the 300A continuous rating; the 500A and 1,000A ratings apply for up to 15 and 2 seconds only.
- Deep-cycle battery, not cranking-rated.
- Confirm polarity and voltage with a multimeter before the final connection. Tighten the terminal hardware to the torque Epoch specifies for this battery, and keep the terminal covers installed.
- Install the battery upright, secured with hold-down hardware rated for its weight so it cannot slide, tip or strike nearby equipment, and keep the vent clear; allow extra space for terminal hardware, cable bend radius and service removal. Damage from an unsecured or improperly secured battery is excluded from warranty coverage.
- Battery banks: parallel only, up to 2 matched batteries of this model of similar age, condition and firmware, at the same state of charge. Never connect in series, and never mix with lead-acid batteries or other models.
- IP67 covers dust and temporary immersion only (1 m, 30 min); it is not rated for water jets or pressure washing. Keep the communication port and harness connectors sealed, and inspect the battery after any immersion.
- Never connect the terminals together or let tools or jewelry bridge them. Stop using the battery if it is swollen, leaking, smoking, unusually hot or damaged, and follow the Safety Data Sheet (SDS) listed under Downloadable resources.
- Before first use, confirm the model on the battery label, complete the first charge and check that the app shows no active faults.
- Register the battery within 90 days of purchase for full warranty coverage.
Maintenance schedule
No watering or acid service; routine inspections keep it operating safely.
Keep the terminals clean and dry; do not use solvents, abrasive cleaners or pressure washing on the battery. Never place a multimeter's current (amps) input across the battery terminals: measure current with a DC clamp meter or a correctly rated shunt.
Inspection intervals:
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Before each trip or use: Inspect the case, terminals, cables, fuses, disconnects and mounting hardware
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Monthly during active use: Check terminal tightness, cable condition, app status and resting voltage
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At least every 3 months in storage: Check the state of charge and recharge as needed
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Annually: Inspect torque, wiring layout, protection devices, battery tray, ventilation and charger settings
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After any fault or impact: Stop use, inspect for damage, record the app data and contact support as needed
Cart Configurations
- EZGO TXT (BB51230A-Kit-1)
- Other (BB51230A-Kit-2)
- EZGO TXT: choose the EZGO TXT configuration; its charge port plug is matched to the cart.
- Other compatible 48V carts: choose Other, and confirm tray space for the 23.5 × 14.4 × 9.9 in case, mounting, cable routing and charge-port wiring.
Suitable For:
- EZGO TXT, using the EZGO TXT configuration: the charge port plug is matched to the cart.
- Other compatible 48V golf carts, using the Other configuration: confirm tray space, mounting, cable routing and charge-port wiring.
- Neighborhood electric vehicles and utility vehicles.
- Commercial fleet and specialty 48V power systems.
- Carts with 12V lights and accessories powered through the included converter (25A maximum load).
- Upgraded controllers and motors whose current demand fits the battery ratings.
- Stretched carts: a 13 ft harness is available if the 6 ft switch harness does not reach the dash.
- 48V golf carts
- Golf carts with 12V lights and accessories
Certifications & Standards
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IP67 (Ingress protection, IEC 60529): Dust-tight, and protected against temporary immersion in up to 1 m of water for 30 minutes. Under IEC 60529 the first digit rates solids and the second rates water. Sealed against dust and dirt; temporary immersion to 1 m for 30 minutes; not rated for water jets or pressure washing.
Please Note: Mounting brackets are not included in either configuration: plan hold-down hardware rated for the battery's 196 lb (89 kg) weight; a Mounting Bracket for EZGO TXT (BB51230-TXT1) is sold separately
Please Note: Confirm your cart is a compatible 48V platform, that the battery bay fits the 23.5 x 14.4 x 9.9 in case, and check terminal clearance, cable size, overcurrent protection, hold-down hardware and the controller's current settings
Please Note: Only authorized mechanics or technicians should install the battery; use suitable lifting equipment or enough people to lift it safely
Please Note: Ratings at 25°C unless noted, from the BB51230A-Kit-1 spec sheet, technical data sheet and user manual (Rev V01, September 2026).
Please Note: Not included: a main fuse or DC-rated breaker; install one as close as practical to the battery positive terminal
Please Note: Size loads, conductors and overcurrent protection to the 300A continuous rating; the 500A and 1,000A ratings apply for up to 15 and 2 seconds only
Please Note: Deep-cycle battery, not cranking-rated
Please Note: Replacing the factory charging receptacle with the included cart-specific charge port plug is required for safety
Please Note: Lead-acid chargers are not compatible; never use equalization, desulfation or repair modes
Please Note: No internal heater: the BMS blocks charging outside 0°C to 55°C (32°F to 131°F)
Please Note: Parallel only, up to 2 matched batteries (460Ah); never connect in series or mix with lead-acid or other models
Please Note: IP67 is not rated for water jets or pressure washing
Please Note: Epoch gives no fixed range figure; track your own usage with the gauge and app to learn your cart's range
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Specifications
General
Brand: Epoch Batteries
Product: 48V 230Ah Golf Cart Battery Complete Kit - Lithium (LiFePO4)
Model / SKU: BB51230A-Kit-1 (EZGO TXT); BB51230A-Kit-2 (Other)
Series: Big Box Series
Battery type: LiFePO4 golf cart battery, 48V class
Chemistry: LiFePO4 (lithium iron phosphate)
Cell configuration: 16S1P (16 prismatic cells in series)
Cart configurations: EZGO TXT; Other (compatible 48V carts)
Bluetooth: Yes — Epoch Li-Ion app (iOS and Android)
Firmware updates: Over the air (OTA) through the app
CAN communication: CAN connector on the harness, for manufacturer or dealer BMS updates
Cycle life: 4,000+ cycles
Warranty: 11-year limited manufacturer warranty
Electrical
Nominal voltage: 51.2V (48V class)
Nominal capacity: 230Ah
Stored energy (nominal): 11.78kWh (11,776Wh)
Operating voltage range: 40–58.4V
Maximum charge voltage: 58.4V
Power-down state: Any cell below 2.2V, or pack voltage about 38V
Self-discharge: 3% per month
Current ratings
Max continuous discharge: 300A (1.3C)
Peak discharge: 500A for up to 15 s; 1,000A for up to 2 s
Max continuous charge: 230A (1C)
Peak charge (regenerative braking): 500A for up to 15 s
Battery banks
Series connection: Not supported
Parallel connection: Max 2 batteries (460Ah, 23.55kWh)
Charging
Included charger: 48V 22A onboard lithium charger, powered through the cart's charge port
AC connection: 10 ft heavy-duty extension cord (included) to a standard 120V AC outlet
Charge time: About 10.5 h from empty with the included charger
Charger restart: Below about 95% SOC, if the charger stays connected
Full charge: SOC resets to 100%; the gauge reads 100%
Power-down recovery: Switch the battery on, then charge immediately
Lead-acid chargers: Not compatible: they will not properly charge or balance the battery
Temperature
Charge: 0°C to 55°C (32°F to 131°F); no internal heater
Discharge: −10°C to 55°C (14°F to 131°F)
Storage (up to 1 month): −20°C to 55°C (−4°F to 131°F)
Storage (recommended): 0°C to 35°C (32°F to 95°F); up to 12 months
Mechanical
Dimensions (L × W × H): 23.5 × 14.4 × 9.9 in (597 × 366 × 251 mm)
Weight: 196 lb (89 kg)
Case material: Stainless steel
Controls and ports: On/off switch, communication port, vent, positive and negative terminals
Mounting: Upright, secured with hold-down hardware rated for 196 lb (89 kg); brackets not included
Enclosure rating: IP67 per IEC 60529: dust-tight; temporary immersion (1 m, 30 min); not rated for water jets or pressure washing
Kit contents
Battery: 48V 230Ah LiFePO4 golf cart battery
Charger: 48V 22A onboard lithium charger with a 10 ft heavy-duty extension cord
Gauge: Digital Bluetooth battery gauge (dash mount)
On/off switch: 6 ft remote on/off power switch with wiring harness (13 ft harness available for stretched carts)
12V converter: Fused 48V to 12V step-down converter, 25A, with key-on (enable) wire (input 40–90V, output 13.5V)
Charge port: Cart-specific charge port plug (replaces the factory charging receptacle)
App: Free Epoch Li-Ion app access (iOS and Android)
Not included: Mounting brackets; main fuse or DC-rated breaker
BMS protection
Over-voltage: Cell and pack over-voltage protection
Under-voltage: Cell and pack under-voltage protection
Over-current: Charge and discharge over-current protection
Short circuit: Discharge short-circuit protection
Temperature: Charge and discharge over/under-temperature, ambient and MOSFET over-temperature protection
Cell balancing: Integrated; cell-unbalance alarm
Low-charge warning: Buzzer and gauge warning below 20% SOC
Compliance
Enclosure: IP67 per IEC 60529
In the Box
- 48V 230Ah LiFePO4 golf cart battery (replaces the whole lead-acid bank): 51.2V (48V class), 230Ah and 11.78kWh in a stainless-steel IP67 case with built-in Bluetooth and BMS. 300A continuous, 1,000A peak for up to 2 seconds. 23.5 × 14.4 × 9.9 in, 196 lb.
- 48V 22A lithium charger (onboard LiFePO4 charger): Charges the battery with a LiFePO4 charge profile. It is powered through the cart's charge port, so you plug in from outside the cart.
- 10 ft heavy-duty extension cord (included with the charger): Plugs into the cart's charge port and a standard 120V AC outlet, so you can charge from outside the cart.
- Digital Bluetooth battery gauge (dash mount): Shows state of charge from 0 to 100%, battery voltage, current and temperature at a glance, and shows warnings when the BMS raises an alarm.
- 6 ft remote on/off power switch (with wiring harness): Turn the battery on and off from the dash. The 6 ft harness links the battery's communication port to the switch, gauge and charger.
- 48V to 12V step-down converter (25A) (for 12v accessories): Fused, with a key-on (enable) wire for the cart's key switch. Runs 12V headlights, light bars, radios and USB outlets from the 48V battery: input 40–90V, regulated 13.5V output, 25A maximum load.
- Cart-specific charge port plug (matched to your cart): Replaces the cart's factory lead-acid charging receptacle and feeds AC power to the onboard lithium charger. Replacing the original receptacle is required for safety.
- Epoch Li-Ion app (free for iOS and Android): Connects over Bluetooth to show state of charge, voltage, current, temperature, battery health and warnings on your phone, and installs firmware updates over the air.
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Recommended Charging Settings
Recommended charging settings for this kit, as listed by Epoch.
- Charger: 48V 22A onboard lithium charger (included), powered through the cart's charge port
- AC Connection: 10 ft heavy-duty extension cord (included) from the cart's charge port to a standard 120V AC outlet
- Charge Time: About 10.5 h from empty with the included charger
- Maximum Charge Voltage: 58.4V
- Charger Restart: Below about 95% SOC, if the charger stays connected
- Charge Current Limits: 230A continuous; up to 500A for up to 15 s of regenerative braking
- Charge Temperature: 0°C to 55°C (32°F to 131°F); no internal heater, so let a cold battery warm above freezing before charging
- Charge Port: The cart-specific charge port plug replaces the factory lead-acid receptacle; replacing it is required for safety
- Lead-Acid Chargers: Do not use; they will not properly charge or balance the battery. Club Car carts with an On-Board Computer (OBC) may need an OBC bypass.
- Equalization, Desulfation or Repair Modes: Do not use
Installation steps
- Turn off the cart and all accessories, disconnect the cables safely and remove the original lead-acid batteries.
- Prepare hold-down hardware rated for the battery's 196 lb (89 kg) weight, and install the charger in the compartment.
- Replace the cart's factory charging receptacle with the supplied cart-specific charge port plug; this step is required for safety.
- Mount the digital gauge and the remote on/off switch on the dashboard, and route the 6 ft wiring harness. For stretched carts that need more reach, use the 13 ft Extended Harness for LiMAX Big Box (sold separately).
- Set the battery in the compartment and secure it with the hold-down hardware.
- Connect the battery terminals to the charger's leads and to the cart's positive and negative cables, observing polarity.
- Install the 12V converter: connect its key-on (enable) wire to the cart's key switch and its output to the 12V accessory circuits.
- Connect the harness to the battery communication port, on/off switch, gauge and charger; switch on and confirm the gauge shows the state of charge. If it is low, charge before first use.
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BB51230A-Kit-1 Spec Sheet
BB51230A-Kit-1 User Manual
BB51230A-Kit-1 Technical Data Sheet
BMS-CAN Communication Protocol
Safety Data Sheet (SDS)
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Will this kit fit my golf cart?
The kit comes in two configurations: EZGO TXT, with a charge port plug matched to the cart, and Other for other compatible 48V carts. The battery case is 23.5 × 14.4 × 9.9 in (597 × 366 × 251 mm) and weighs 196 lb (89 kg); confirm tray space and cable clearance, mounting, cable routing, charge-port wiring and your controller's current settings before installation.
Which configuration should I choose?
Choose EZGO TXT for an EZGO TXT cart: its charge port plug is matched to the cart. For any other compatible 48V cart, choose Other and confirm tray space, mounting, cable routing and charge-port wiring.
Are mounting brackets included?
No. Mounting brackets are not listed in this kit's contents. Secure the battery with hold-down hardware rated for its 196 lb (89 kg) weight so it cannot slide, tip or strike nearby equipment, and install it upright. For EZGO TXT carts, the Mounting Bracket for EZGO TXT (BB51230-TXT1) is sold separately. Damage from an unsecured or improperly secured battery is excluded from warranty coverage.
What comes in the box?
The 48V 230Ah LiFePO4 battery, a 48V 22A onboard lithium charger with a 10 ft heavy-duty extension cord, a digital Bluetooth battery gauge, a 6 ft remote on/off power switch with wiring harness, a fused 48V to 12V step-down converter (25A) with a key-on wire, a cart-specific charge port plug that replaces the factory charging receptacle and free access to the Epoch Li-Ion app. Mounting brackets are not included, and the listed kit contents do not include a main fuse or DC-rated breaker; install one close to the battery positive terminal.
Can I still use my old lead-acid golf cart charger?
No. Lead-acid chargers use different charging profiles and will not properly charge or balance a LiFePO4 battery. The kit includes a 48V 22A onboard lithium charger; Club Car carts with an On-Board Computer (OBC) may need an OBC bypass. Never use lead-acid equalization, desulfation or repair modes on this battery.
How long does it take to charge?
About 10.5 hours from empty with the included 48V 22A charger. Charge after each day's use, or at least once a week with occasional use.
How do I plug in to charge?
Through the included cart-specific charge port plug, which replaces the factory charging receptacle. Plug the 10 ft heavy-duty extension cord that comes with the charger into the port and a standard 120V AC outlet; the port passes AC power to the onboard 48V 22A lithium charger. The charger, not the port plug, sets the LiFePO4 charge profile.
What does the digital gauge show?
The dash-mounted digital gauge shows the state of charge from 0 to 100%, battery voltage, current and temperature, and shows warnings when the BMS raises an alarm. The kit also includes free access to the Epoch Li-Ion app for iOS and Android, which connects over Bluetooth to show battery status on your phone and install firmware updates over the air.
Will the remote on/off switch reach the dash on a stretched cart?
The included remote on/off power switch comes on a 6 ft harness. For stretched carts, where the battery sits farther from the dash, add the 13 ft Extended Harness for LiMAX Big Box (sold separately). Route the harness along protected frame paths and do not splice or daisy-chain it.
How do I power my 12V headlights and radio with a 48V battery?
Through the included fused 48V to 12V step-down converter. Connect its key-on (enable) wire to the cart's key switch so it turns on with the key, and its output to the 12V accessory circuits. It delivers a regulated 13.5V output from a 40–90V input and supports up to 25A, so keep the total 12V accessory load within 25A. Two of its wires are black, input and output negative: confirm which is which before connecting.
Do I need to bypass the OBC on my Club Car?
If you install the kit in a Club Car that uses an older On-Board Computer (OBC) to control the original lead-acid charger, an OBC bypass may be required so the included lithium charger can charge the battery directly. Check your exact model and follow the kit instructions or a qualified installer's guidance.
How far will the 230Ah battery go on a charge?
Range depends on terrain, passenger weight, tire size, lift kits, controller tuning, motor condition, speed and accessory load, so there is no single figure for every cart. The battery stores 11.78kWh (11,776Wh) of nominal energy; track your own usage with the gauge and the app to learn your cart's range.
Can this battery handle upgraded aftermarket motors and controllers?
Yes, when the controller's current demand fits the battery ratings: 300A continuous, 500A for up to 15 seconds and 1,000A for up to 2 seconds. Check the controller's continuous and peak current settings, especially on upgraded or tuned controllers, and keep them within these ratings. Regenerative braking can return up to 500A for 15 seconds; the continuous charge limit is 230A.
Can I charge it in freezing weather?
Not below freezing. The battery has no internal heater, and the BMS blocks charging outside 0°C to 55°C (32°F to 131°F). Let a cold battery warm above freezing before charging. It discharges from −10°C to 55°C (14°F to 131°F).
Is the battery waterproof?
It is rated IP67 per IEC 60529: dust-tight and protected against temporary immersion up to 1 m for 30 minutes. It is not rated for water jets or pressure washing; do not submerge it or leave it in standing water, and inspect the battery and connectors after any immersion.
Can I connect two batteries together?
Up to 2 matched batteries of this model can be connected in parallel (460Ah, 23.55kWh at 51.2V). Series connection is not supported. Use batteries of similar age, condition and firmware, charge each fully first, and never mix them with lead-acid batteries or other models.
Do I need to add water to this battery or winterize it?
No watering: the battery needs no watering or acid service, though routine inspections keep it operating safely (check the terminals, cables, fuses and mounting before use, and terminal tightness monthly). For off-season storage, keep the state of charge between 60% and 90%, turn the battery off and store it dry at 10–35°C (50–95°F) where practical, checking the state of charge at least every 3 months. The warranty excludes batteries left uncharged for more than three months.
What does the buzzer or a WARNING code on the gauge mean?
The BMS reports alarms and protection events on the gauge, with the buzzer and in the app. If the buzzer sounds while driving, slow down or stop and check the battery; otherwise BMS protection may shut it down. For low-voltage or low-charge warnings, stop and charge the battery. For temperature warnings, stop and let the battery return to its operating range. For over-current warnings, reduce the load and check the controller's current settings. For detection faults, MOSFET faults or a persistent cell-unbalance alarm, stop using the battery and contact Epoch support.
Why did my battery turn off by itself?
Above 20% state of charge, the battery shuts down after 7 days without discharge; at or below 20%, after 24 hours. Press the on/off switch twice to restart: once to reset the switch and once to turn the battery on.
What does the warranty cover?
The BB51230A-Kit-1 is backed by an 11-year limited manufacturer warranty covering qualifying defects in materials and workmanship under normal use, subject to Epoch Batteries' warranty terms, model-specific remedy schedule and claim procedures. Proof of ownership is required for any claim, and coverage is non-transferable: it applies only to the original purchaser. Register within 90 days of purchase for full coverage; otherwise the warranty period begins from the battery's original manufacturing date. Epoch's full warranty terms govern coverage, remedies and exclusions.
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Epoch Batteries Limited Warranty
Warranty Period
11-year limited manufacturer warranty covering qualifying defects in materials and workmanship under normal use, subject to Epoch Batteries' warranty terms, model-specific remedy schedule and claim procedures
Register within 90 days of purchase for full coverage; otherwise the warranty period begins from the battery's original manufacturing date
Proof of ownership is required for any claim; coverage is non-transferable and applies only to the original purchaser
Batteries left uncharged for more than three months are excluded
Damage from an unsecured or improperly secured battery is excluded
Epoch Batteries-branded products are covered against qualifying defects in materials and workmanship for the applicable warranty period, subject to Epoch's model-specific remedy schedule and the terms of its warranty policy. Epoch-branded chargers carry a 2-year limited warranty and accessories (such as fuel gauges and voltage reducers) a 1-year limited warranty, from the original purchase date.
Registration
Register your battery with Epoch within 90 days of purchase for full warranty coverage. If it is not registered within that time, the warranty period begins from the battery's original manufacturing date. Proof of ownership is required for any claim, and coverage is non-transferable and applies only to the original purchaser.
Remedy
After inspection and testing, Epoch will provide the applicable remedy for a qualifying manufacturing defect: an approved repair, a replacement, or a comparable-product offer according to the model's schedule. Typical repair turnaround is 3–10 business days once the product is received.
Exclusions
Coverage may be denied when a failure is caused by misuse, improper handling, installation or storage, or use outside the product's specifications. Examples include an unsecured battery; loose, corroded or improperly connected terminals; series or parallel connections beyond the manufacturer's recommendations; reverse polarity or short circuits; impact, fire or water submersion; storage above 140°F or below -40°F; prolonged storage fully discharged or batteries left uncharged for more than three months; poor crimps, undersized cables or damaged wiring; opened, modified or tampered products; and use in applications the battery was not designed for, including repeated engine starting on non-cranking models.
Obtaining Warranty Service
Start a claim through the Epoch Batteries Warranty Portal with your model and serial number, proof of purchase, a description of the issue and supporting photos or videos. If approved, Epoch provides an RMA number and packing instructions. Do not ship a product without a valid RMA. The customer arranges and pays for shipment to Epoch, packaged in compliance with lithium battery shipping rules. Epoch Batteries can be reached at 1-888-501-1846 or support@epochbatteries.com.
Visit Epoch's Warranty Page to review the full warranty terms.
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Shipping is typically through freight carriers and the actual shipping time is contingent on your location and the specific warehouse dispatching your order. Please allow for a 1-3 business day processing period before shipment, and an estimated delivery time of up to 7 business days. Your confirmation email will include delivery details and we will send you a tracking number as soon as one is available. If you ordered several separate items, you may receive multiple tracking numbers. Once the item has been shipped, the freight service will contact you to coordinate the date and time of delivery. If you require any special accommodations during delivery please let us know as soon as possible and let the delivery company know when arranging the appointment.
Typically, orders will be dropped off either curbside or outside your front door or garage. It is your responsibility to bring the order inside or to its final destination and to remove any existing items.
Depending on the item, parts may be shipped in multiple boxes, and assembly may be required. When your order is delivered, please check that you have all pieces of the item and that nothing is damaged. If your order is damaged during transit and external damage is visible, note the damage immediately, write it on the delivery documents, take photos and/or videos, and refuse shipment. If there is no visible external damage, accept the package but note “subject to concealed damage” on the delivery documents. Any damage upon delivery needs to be reported within 24 hours of delivery or you may not be eligible for a refund. For additional information on submitting claims, as well as incorrect item exchanges, and replacements, please see our Refund Policy.
For more information about shipping, please visit our complete Shipping Policy.
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Why Shop With Eco Emperor?
At Eco Emperor, our mission is to empower you to lead a sustainable and fun lifestyle with ease and confidence. Whether you're upgrading your outdoor experience or enhancing your eco-conscious journey, here’s why choosing us is a decision you can feel great about:
Expert and Customized Care
Our knowledgeable and friendly team is here to support you every step of the way. We pride ourselves on providing personalized service and swift responses to ensure a smooth and satisfying experience. Our dedicated team is available via phone, email, and live chat to provide you with prompt and helpful support.
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We partner with the best brands in the industry to bring you reliable, high-quality products. As authorized retailers, we guarantee authenticity and offer full manufacturer warranties on every item. You can trust that our products are built to last and perform efficiently.
Free & Fast Shipping
We know you’re eager to begin your new products or start your next outdoor adventure. That’s why we prioritize quick, reliable, and free shipping to get your orders to you on time and in perfect condition.
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We believe that sustainable living should be accessible to everyone. We offer competitive pricing on all our products, so you can enjoy high-quality eco-friendly solutions and outdoor products without breaking the bank.
Choose Eco Emperor for all your outdoor and eco-friendly product needs, and become part of a movement that’s embracing a more sustainable and adventurous lifestyle.
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