IP54
Capacity: 314Ah
- 6-year warranty
- US-based support
- Available to ship today
Compatible accessories & add-ons
Features at a glance
- IP54Splash & dust resistant
Protected against limited dust ingress and water splashes. Not waterproof or submersible.
- 4,500+Cycle life
Over 12 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.
- Advanced BMSProtection
Guards against overcharge, over-discharge, overcurrent and short circuit.
- LiFePO4Thermal 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.
- 12V 314Ah ECO Series LiFePO4 (4.02kWh): Premium, maintenance-free deep-cycle lithium chemistry designed to provide reliable, massive-capacity off-grid power for RVs, marine, and solar applications at an unbeatable value.
- Compact & High-Density Design: Packs a massive 314 Amp-hours of energy into a space-saving footprint (15.5" L x 7.63" W x 10.5" H), freeing up valuable space in your battery compartment.
- Massive Scalability (Up to 64.3 kWh): Easily expand your system's voltage and runtime by safely wiring up to four (4) units in series for a 48V system, or up to sixteen (16) in parallel for an immense off-grid energy bank.
- Advanced Smart BMS (20+ Safety Features): The integrated Battery Management System fully protects your investment against over-charging, over-discharging, over-current, and short circuits.
- Low-Temperature Charge Protection: Built-in thermal safeguards automatically disconnect the battery from charging in freezing, sub-zero conditions to prevent permanent cold-weather damage to the cells.
- 4,500+ Cycle Life & Maintenance-Free: Engineered for exceptional durability that drastically outlasts traditional lead-acid alternatives, requiring absolutely zero water top-offs or daily upkeep.
- 6-Year Manufacturer Warranty: Built for rugged, everyday outdoor use and backed by industry-leading quality assurance and dedicated customer support.
Configuration
Cell Configuration: 4S1P
Chemistry: LiFePO4
Current
Ah Capacity: 314Ah
Max Continuous Discharge Amps: 250A
Max Charge Current Amps: 250A
Max Discharge Peak Current Amps: 750A (5 Seconds)
Series | Parallel: Max (4) in Series, Max (16) in Parallel
Voltage
Voltage: 12.8V
Max Charge Voltage: 14.6V
Operating Voltage Range: 10.0 - 14.6V
Temperature
Charge Temp Range: 0°C (32°F) / 55°C (131°F)
Discharge Temp Range: -20°C (-4°F) / 60°C (140°F)
Storage Temp: 0°C (32°F) / 35°C (95°F)
Weight: 57 (LBS)
Dimensions
Length: 13.75" @ Base, 15.5" @ Handles (inches)
Width: 7.63" (inches)
Height: 10.0", 10.5' with Terminal Bolts (inches)
BCI Group 31 footprint. Verify tray dimensions, terminals, wiring and charging-system compatibility before installation.
To properly charge your Epoch Batteries, you will want to verify that any charging component in your system is capable of being programmed for the following specifications. Charging components can include, but are not limited to converters, inverter chargers, solar charge controllers, DC to DC chargers, etc.
Bulk/Absorption: 14.2V – 14.6V
Absorption Time: Two batteries in parallel connections require 30 minutes 200Ah
Float: 13.4V – 13.8V
Equalization: 14.4V/ Disabled
Temperature Compensation: 0/Disabled
Charge Rate: 50% of the battery or battery bank capacity
Battery Charge Temperature Range: 32°F (0°C) to 131°F (55°C)
Battery Discharge Temperature Range: -4°F (-20°C) to 140°F (60°C)
Cell Charge Temperature: 32°F (0°C) to 131°F (55°C)
Cell Discharge Temperature: -4°F (-20°C) to 140°F (60°C)
NOTE: Not all chargers are capable of multistage charging. If yours is not, you will want to verify it can be programmed for the Bulk/Absorption voltage and have the other items mentioned disabled if applicable. Consult your charger's manual or the manufacturer.
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Applications & use cases
- RV house power
- Camper vans and van life
- Travel trailers and fifth wheels
- Motorhomes and Class A or Class C coaches
- Overlanding and expedition vehicles
- Marine house power
- Trolling motors
- Marine electronics and fish finders
- Yachts and large cruising boats
- Electric outboards and marine propulsion support
- Off-grid solar systems
- Solar battery banks and inverter systems
- Home energy storage and backup power
- Cabins and remote power systems
- Camping and emergency power kits
- Ham radio and communications backup
- Commercial fleet and specialty power systems
High-capacity Eco Series LiFePO4 power
Epoch 12V 314Ah Eco Series LiFePO4 Battery (4.02kWh)
A value-focused 12V 314Ah lithium battery built for RV solar, off-grid power, and high-capacity 12V deep-cycle battery banks.
The Epoch 12V 314Ah LiFePO4 battery is an Eco Series high-capacity power solution for DIY solar builders, RV converters, off-grid cabin owners, and mobile power systems. With 4.02kWh capacity, a 250A smart BMS, 750A peak discharge, Group 31 fitment, IP54 weatherproof construction, and a 57 lb footprint, this 12V 314Ah lithium battery delivers maximum energy storage per dollar in a simplified, reliable package.
314Ah
Capacity
4.02kWh
Stored energy
250A
Continuous output
750A
Peak discharge
57 lb
Battery weight
IP54
Weatherproof
Built for high-value power systems
6-year warranty
Eco Series coverage
250A smart BMS
High-current protection
Group 31 size
High-capacity footprint
Low-temp protection
Charge cutoff safety
IP54 enclosure
Dust and splash resistant
LiFePO4 safety
Stable lithium chemistry
Power Heavy Loads with a 250A Smart BMS
Built for 3000W inverter-class systems, RV appliances, solar storage, and off-grid power.
This high-capacity 12V deep cycle battery includes a robust 250A continuous BMS, allowing one battery to support demanding 12V loads when the inverter, cabling, fusing, and low-voltage settings are properly sized. At 12.8V × 250A, the battery can supply roughly 3,200W before inverter efficiency losses, making it a strong fit for many 3000W inverter systems.
The 750A peak discharge rating for 5 seconds helps handle short surge loads from equipment such as microwaves, induction cooktops, compressors, and other off-grid appliances. This model is a deep-cycle battery and should not be used for engine starting unless Epoch confirms compatibility.
Massive Scalability: Series and Parallel Expansion
Build a 12V off-grid battery bank or scale to 24V, 36V, or 48V systems.
The Epoch 12V 314Ah Eco Series supports up to four batteries in series for higher-voltage system designs and up to sixteen batteries in parallel for massive 12V capacity expansion. A full 16-battery parallel bank provides up to 5,024Ah and 64.32kWh of stored energy.
For any large off-grid battery bank, use matched batteries of the same model, age, capacity, and state of charge. Balanced wiring, proper busbars, fusing, disconnects, inverter settings, and LiFePO4-compatible charging equipment are required.
Compatible applications
RV solar battery, off-grid battery bank, van power, backup, and marine house systems.
- ✓ RV solar battery banks, camper conversions, travel trailers, and motorhome house-power systems.
- ✓ Off-grid battery bank builds for cabins, tiny homes, sheds, and remote solar systems.
- ✓ Van, overland, and mobile auxiliary power systems requiring high-capacity 12V energy storage.
- ✓ Marine house battery systems for electronics, lighting, pumps, refrigeration, and accessories.
- ✓ Backup power systems for communications, lighting, refrigeration, and critical 12V loads.
- ✓ 3000W inverter-class systems when inverter, cables, fusing, and low-voltage settings are sized correctly.
- ✓ Drop-in lead-acid replacement projects where fitment, charger profile, cable clearance, and system ratings match.
- ✓ 24V, 36V, and 48V battery banks using up to 4 batteries in series.
- ✓ Large 12V parallel battery banks up to 16 batteries and 64.32kWh total energy.
Built to Last: 4,500+ Cycles and Essential Safety
Official Eco Series cycle-life rating, low-temperature protection, and advanced BMS safeguards.
The official Epoch product page and data sheet list this model at 4,500+ cycles. It is designed for maintenance-free LiFePO4 service with advanced BMS protection, low-temperature charge protection, over-current protection, short-circuit protection, and high/low temperature disconnects.
Smart Low-Temperature Protection
The Eco Series does not include active internal heating, but it does include a low-temperature charge disconnect. If cells are below the safe charging range, the BMS blocks incoming charge current to help prevent permanent lithium cell damage while still allowing discharge within the published operating range.
IP54 Weatherproof Case and 6-Year Warranty
The IP54 weatherproof enclosure is dust protected and splash resistant, making it a practical choice for RV compartments, dry boat consoles, battery boxes, vans, cabins, and protected off-grid installations. The Eco Series is backed by a 6-year manufacturer warranty.
Eco Series feature highlights
Capacity, current output, and simple dependable power.
314Ah high-capacity storage
Stores 4.02kWh of energy in one practical Group 31 lithium battery.
250A continuous discharge
Supports heavy 12V loads, large DC circuits, and properly sized inverter systems.
750A peak discharge
Delivers short-duration peak current for up to 5 seconds to help handle surge loads.
250A max continuous charge
Accepts high-current charging from properly configured lithium-compatible equipment.
Low-temperature charge disconnect
BMS blocks charging below the safe temperature range to protect the cells.
IP54 weatherproof case
Dust-protected and splash-resistant for protected RV, marine, mobile, and off-grid locations.
4,500+ cycle life
Official Epoch product and data-sheet rating for long-life LiFePO4 service.
6-year warranty
Backed by Epoch’s 6-year manufacturer warranty for Eco Series batteries.
No Bluetooth or heater
Simplified Eco Series design prioritizes capacity, current output, and value.
Series and parallel expansion
Supports up to 4 in series and up to 16 in parallel when installed as matched batteries.
57 lb weight
A high-capacity lithium battery at a fraction of the weight of many comparable lead-acid banks.
Maintenance-free LiFePO4
No watering, acid maintenance, or routine lead-acid service required.
Compatible chargers and accessories
Recommended add-ons for a complete installation.
Technical Specifications and Dimensions
Complete technical details for RV solar, off-grid, marine house-power, and high-capacity 12V systems.
| General | |
|---|---|
| Brand | Epoch Batteries |
| Model / SKU | 12314-ECO |
| Series | Eco Series |
| Battery type | Deep-cycle LiFePO4 battery |
| Battery group size | Group 31 |
| Chemistry | LiFePO4 / lithium iron phosphate |
| Cell type | Prismatic LiFePO4 |
| Cell configuration | 4S1P |
| Bluetooth | No |
| Self-heating | No |
| Cycle life | 4,500+ cycles |
| Warranty | 6-year manufacturer warranty |
| Voltage and capacity | |
| Nominal voltage | 12.8V |
| Nominal capacity | 314Ah |
| Stored energy | 4.02kWh |
| Operating voltage range | 10.0V – 14.6V |
| Maximum charge voltage | 14.6V |
| Current ratings | |
| Max continuous discharge | 250A |
| Max continuous charge | 250A |
| Recommended charge | 0.5C / approx. 157A |
| Peak discharge | 750A @ 5 seconds |
| Series and parallel | |
| Series connections | Max 4 batteries in series, up to 48V |
| Parallel connections | Max 16 batteries in parallel |
| Maximum parallel bank | 5,024Ah / 64.32kWh |
| Temperature | |
| 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 |
| Low-temperature charge protection | Yes |
| Dimensions and mechanical | |
| Base length | 13.75 in |
| Length at handles | 15.5 in |
| Width | 7.63 in |
| Height | 10.0 in body / 10.5 in with terminal bolts |
| Weight | 57 lb / approx. 25.85 kg |
| Terminal | M8 bolt / verify supplied torque |
| Case material | ABS and PC blend, UL94-V0 |
| IP rating | IP54 |
| Recommended charging settings | |
| Bulk / absorption voltage | 14.2V – 14.4V |
| Absorption end | Current ≤ C/20 or 15 min max |
| Float | Disabled preferred, or 13.3V – 13.6V |
| Re-bulk | 13.2V |
| Equalization | Disabled |
| Temperature compensation | 0mV/°C / none |
| BMS high-voltage cutoff | 14.6V |
| SoC recalibration | 14.6V |
| Compliance and listings | |
| Cell compliance | UL 1642 cells, UL 9540A cells, IEC 62619:2022 |
| Product compliance | CE, RoHS |
| Transport | UN 38.3, Class 9 |
IP54 weatherproof protection
Dust protected. Splash resistant. Built for protected mobile and off-grid installations.
The IP54 enclosure is suitable for many protected RV, marine, cabin, and outdoor equipment locations. It should not be submerged, pressure washed, or installed in an exposed location where standing water can collect around the battery.
Charging and bank design note
Program your equipment for LiFePO4 and protect every string.
Use LiFePO4-compatible chargers, inverter/chargers, DC-to-DC chargers, and solar controllers. Disable equalization and temperature compensation, install appropriate fuses or circuit breakers, and verify cable ampacity, voltage drop, tray clearance, and environmental limits before final installation.
Frequently asked questions
Epoch 12V 314Ah Eco Series FAQs
Common questions about inverter sizing, Eco Series features, cold-weather protection, waterproofing, and expansion.
What is the difference between the Eco Series and the Epoch Essentials/Pro Series?
The Eco Series is designed to deliver maximum capacity and power at the most competitive price point. It does not include Bluetooth monitoring or internal heating pads, and it uses an IP54 weather-resistant enclosure with a 6-year warranty. Essentials and Pro models add more premium features such as Bluetooth, active heating, higher IP ratings, or longer warranty coverage depending on model. If you want raw, reliable power and massive capacity on a budget, the Eco Series is the value-focused choice.
What size inverter can this 12V 314Ah battery run?
The 250A continuous BMS allows the battery to continuously output roughly 3,200 watts at 12.8V before inverter efficiency losses. That makes it a strong match for many 3000W inverter systems when the cables, fusing, inverter settings, and installation are sized correctly. The 750A peak discharge rating for 5 seconds also helps with short surge loads.
Can I connect these 314Ah batteries in series or parallel?
Yes. The Epoch 12V 314Ah Eco Series supports up to 4 batteries in series for 24V, 36V, or 48V systems, and up to 16 batteries in parallel for expanded 12V capacity. Use batteries of the same model, age, capacity, and state of charge, with matched cabling, proper fusing, and compatible charging equipment.
Does this battery have cold-weather protection?
Yes. The Eco Series does not include active internal heating pads, but it does include low-temperature charge protection. If cell temperature is below the safe charge range, the BMS blocks incoming charge current to help protect the LiFePO4 cells. The battery can still discharge down to -20°C / -4°F within the published discharge range.
Is the Eco Series battery waterproof?
The 12V 314Ah Eco Series has an IP54-rated weather-resistant enclosure. It is protected against dust and water splashes from any direction, making it suitable for RV compartments, battery boxes, off-grid cabins, and protected marine spaces. It is not fully submersible and should not be installed where standing water can collect around the battery.
How much does this battery weigh compared to lead-acid?
The Epoch 12V 314Ah battery weighs 57 lb. Comparable lead-acid or AGM banks with similar practical usable energy can weigh far more and take up significantly more space, especially because lead-acid batteries are commonly limited to about 50% usable depth of discharge. The exact weight savings depends on the lead-acid bank being replaced.
Does the 314Ah Eco Series include Bluetooth or internal heating?
No. This Eco Series model is built for simplified, high-capacity value. It does not include Bluetooth monitoring or internal self-heating. Use an external battery monitor, such as a shunt-based monitor, if your system needs app-based visibility.
What charger settings should I use?
Use a LiFePO4-compatible charger, converter, inverter charger, solar charge controller, or DC-to-DC charger. Recommended settings include 14.2V–14.4V bulk/absorption, float disabled preferred or 13.3V–13.6V, 13.2V re-bulk, equalization disabled, and temperature compensation disabled.
More from Eco Series
Additional Resources
Safety certifications & listings
Every mark below is a standard this battery has been tested against or a listing it carries. Here is what each one covers, in plain English.
IP54
Ingress protection
Dust-protected, and protected against splashing water from any direction. Under IEC 60529 the first digit rates solids and the second rates water.
- Protected from dust
- Splashes and light rain
- Sheltered outdoor use
IEC 60529, Degrees of protection provided by enclosures
Reviews
Recent reviews
Great battery!
Took a pair of these out for their first big outing. Ran my ARB freezer for over a week without a charge. I think it still had half its capacity, but I won't know for sure until I get my Bluetooth monitor hooked up for the next trip. The other battery ran a charging station and starlink without a hitch. Terrific upgrade from a lead acid deep cycle.
Extra run time
I upgraded my audio system on my boat from 1 amp to 4 amps and now have a 2500w JL system. I wanted to be able to spend the day at the sand bar or spend the day with the trolling motor on fishing and be able to push some serious audio along with the other systems without issue. I swapped out my two house 92ah AGMs for two 314ah Epochs. It was a solid…
Power to spare
I replaced two Group 31 flooded batteries with two *****-ECO batteries. Once charged and voltages matched I paralleled them and have increased my useable Amp hour capacity by 6X. The reduced engine/alternator charging in my case is well worth the effort to make all the critical changes to my electriocal system enabling the use of LiFePo4 batteries.