Epoch Batteries 12V 300Ah Essential Series 12300A-H | LiFePO4 Battery (3.84kWh) | Heated, Bluetooth, Group 31

Specifications

Model / SKU: 12300A-H

Series: Essential Series

Battery type: Heated Bluetooth deep-cycle LiFePO4 battery

Battery group size: BCI Group 31

Chemistry: LiFePO4 / Lithium iron phosphate

Cell type: Prismatic LiFePO4

Cell configuration: 4S1P

Bluetooth: Yes — Epoch Li-Ion app (iOS and Android)

Bluetooth security PIN: Printed on the battery's lid; can be changed in the app (Advanced Settings)

Current sensing: BMS-integrated shunt; 0.2A accuracy on discharge

Internal heating: Yes — for cold-weather charging

Cycle life: 4,000+ cycles

Warranty: 11-year limited manufacturer warranty

Nominal voltage: 12.8V

Nominal capacity: 300Ah @ 0.2C

Stored energy (nominal): 3.84kWh (3,840Wh)

Operating voltage range: 10.0V – 14.6V

Maximum charge voltage: 14.6V

Internal resistance: ≤30mΩ

Low-voltage disconnect: 10.0V; reconnect at 12.0V

Inverter / load cutoff: 11.2V

Max continuous discharge: 200A

Recommended discharge current: 150A (0.5C)

Max discharge peak current: 400A for up to 3 seconds

Max continuous charge current: 200A

Recommended charge current: 100A

Short-circuit protection: 800A @ 500µs

Series connections: Max 4 batteries in series, up to 48V systems

Parallel connections: Max 4 batteries in parallel, up to 1,200Ah

Maximum configuration: 4S4P

Charge temperature range: −20°C to 55°C / −4°F to 131°F, with heating

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

Low-temperature charge protection: Charging disabled at 0°C / 32°F; resumes automatically at 5°C / 41°F

Heater activation: Charger connected and supplying at least 0.5A; powered by incoming charge current only, never stored battery energy

Heating system: Tested to −20°C / −4°F; rated for external ambient down to −40°C / −40°F

Self-discharge: ≤3% per month

Long-term storage: Charge to about 50% state of charge; check at least every 3 months

Operating altitude: <3,000m / ≈9,840ft

Length: 13.75 in at base / 15.5 in at handles

Width: 7.63 in

Height: 10.00 in / 10.5 in with terminal bolts

Weight: 58 lbs / approx. 26.3 kg

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

Enclosure protection: IP54 — dust protected, splash resistant; not submersible

Terminal type and torque: M8 bolt / 8–12 N·m (71–106 in-lb)

Maximum continuous charge current: 200A

Recommended charge current: 100A

Bulk / absorption voltage: 14.2V – 14.4V

Absorption end condition: Charge current ≤ C/20 (15A) or 15 minutes, whichever comes first

Float voltage: Disabled (preferred), or 13.3V – 13.6V

Re-bulk voltage: 13.2V

Temperature compensation: 0mV/°C (off)

Equalization: Disabled

Charger temperature limit setting: 0°C to 55°C / 32°F to 131°F, unless the charger has approved cold-charge logic

BMS high voltage cutoff: 14.6V

SoC recalibration voltage: 14.6V

Cell-level certifications: UL 1642; IEC 62619:2022

Product: CE; RoHS

Shipping classification: UN 38.3; Class 9

Enclosure: IP54 per IEC 60529

In the Box

• 1 x Epoch 12V 300Ah Essential Series LiFePO4 battery (12300A-H)

12300A-H User Manual
12300A-H Technical Data Sheet
12300A-H Spec Sheet
Epoch LiFePO4 Safety Data Sheet

Epoch Batteries Limited Warranty

Warranty Period
11-year limited manufacturer warranty

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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