Epoch Batteries 12V 314Ah Eco Series 12314-ECO | LiFePO4 Battery (4.02kWh) | Group 31

Specifications

Model / SKU: 12314-ECO

Series: Eco Series

Battery type: Deep-cycle LiFePO4 battery

Battery group size: BCI Group 31

Chemistry: LiFePO4 / lithium iron phosphate

Cell type: Prismatic LiFePO4

Cell configuration: 4S1P

Bluetooth: No — use an external battery monitor

Self-heating: No

Cycle life: 4,500+ cycles

Warranty: 6-year manufacturer warranty; register within 90 days of purchase for full coverage

Nominal voltage: 12.8V

Nominal capacity: 314Ah

Stored energy: 4.02kWh / 4,019Wh (nominal)

Runtime planning energy: About 3,215Wh (80% of nominal)

Estimated runtime: About 32.2 h at 100W, 6.4 h at 500W, 3.2 h at 1,000W, 2.5 h at 100A (1,280W), 1.6 h at 2,000W (DC loads at 25°C, new fully charged battery)

Operating voltage range: 10.0V – 14.6V

Maximum charge voltage: 14.6V

Max continuous discharge: 250A

Peak discharge: 750A for up to 5 seconds (surge loads only)

Max continuous charge: 250A, all charging sources combined

Recommended charge: Up to 157A (0.5C, 50% of capacity)

Inverter sizing: Properly designed 3,000W inverter-class systems; inverter DC input current within 250A (about 3,200W at 12.8V)

Deep-cycle load warning: Do not design continuous loads above the 250A per-battery continuous limit; 750A is a 5-second peak only

Series connections: Max 4 batteries in series (24V, 36V, or 48V system classes)

Parallel connections: Max 16 batteries in parallel

Maximum parallel bank: 5,024Ah / 64.31kWh

Maximum configuration: 4S16P (64 matched batteries): 51.2V nominal, 5,024Ah, 257.23kWh

Bank batteries: Matched 12314-ECO batteries of the same age, condition, and state of charge; fully charge each before connecting it into a bank

Charge temperature range: 0°C to 55°C / 32°F to 131°F

Discharge temperature range: -20°C to 60°C / -4°F to 140°F

Recommended storage temperature: 0°C to 35°C / 32°F to 95°F

Long-term storage: About 50% state of charge or higher, loads disconnected; check and recharge at least every 3 months

Low-temperature charge protection: Yes — charging blocked below 0°C / 32°F

High-temperature reconnect: 50°C / 122°F

Base length: 13.75 in (349 mm)

Length at handles: 15.5 in (394 mm)

Width: 7.63 in (194 mm)

Height: 10 in (254 mm) body / 10.5 in (267 mm) with terminal bolts

Footprint: BCI Group 31

Weight: 57 lb / 25.85 kg

Terminals: M8 female

Terminal torque: 8–12 Nm (71–106 in-lb)

Case material: ABS and PC blend, UL94-V0 flame rating

IP rating: IP54 per IEC 60529 — dust-protected and splash-resistant; not submersible

Mounting orientation: Upright, unless Epoch documentation for this model allows otherwise

Charger type: 12V LiFePO4-compatible charger, converter, inverter charger, solar controller, or DC-to-DC charger

Compatible charger: Epoch 12V 15A Lithium Battery Charger; a charger below 157A is suitable, it simply takes longer

Bulk / absorption voltage: 14.2V – 14.4V

Absorption end: When charge current falls to C/20 (about 15.7A) or after 15 minutes, whichever comes first

Float: Disabled preferred, or 13.3V – 13.6V

Re-bulk: 13.2V

Equalization: Disabled

Temperature compensation: 0mV/°C (disabled)

BMS high-voltage cutoff: 14.6V

SoC recalibration: 14.6V

Charge temperature: 0°C to 55°C / 32°F to 131°F

Alternator charging: DC-to-DC charger programmed for LiFePO4

Smart BMS: Built in with 20+ safety features

Protection functions: Overcharge, over-discharge, over-current, short circuit, and high / low temperature disconnects

Overcurrent protection: Install a DC-rated fuse or circuit breaker as close as practical to the battery positive terminal; the BMS is not a substitute

Monitoring: No Bluetooth; use a shunt-based battery monitor, such as the Victron SmartShunt 500A/50mV sold by Epoch

Cell certification: UL 1642 (cells)

Thermal runaway testing: UL 9540A (cells)

Battery certification: IEC 62619:2022

Compliance marks: CE, RoHS

Transport: UN 38.3, Class 9

In the Box

• 1 x Epoch 12V 314Ah Eco Series LiFePO4 battery (12314-ECO)

12314-ECO Spec Sheet
12314-ECO User Manual
12314-ECO Technical Data Sheet
Epoch LiFePO4 Safety Data Sheet

Epoch Batteries Limited Warranty

Warranty Period
6-year manufacturer warranty; register within 90 days of purchase for full coverage

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.

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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