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Epoch Batteries 12V 105Ah (1.34kWh) Essential Series LiFePO4 Battery - Off Grid Stores
by Epoch Batteries

Epoch Batteries 12V 105Ah (1.34kWh) Essential Series LiFePO4 Battery

SKU: 12105A-H
$549.00 - $549.00
$549.00
$549.00 - $549.00
$549.00
Availability:
in stock

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11-Year Limited Warranty

Off Grid Stores is an authorized retailer of Epoch Batteries products. Because of this, we pass on Epoch Batteries's manufacturer warranty to you.

Product Highlights
  • 12V 105Ah Essential Series LiFePO4 (1.34kWh): Premium deep cycle power packed into a compact, ultra-lightweight (22.1 lbs) Group 24 footprint—engineered as the perfect drop-in upgrade for RVs, marine applications, and off-grid solar.
  • High-Performance 105A Output: Delivers a reliable 105A maximum continuous discharge (with a 200A peak for up to 10 seconds) and supports ultra-fast 100A continuous charging to effortlessly handle demanding 12V loads.
  • Heated for Sub-Zero Charging: Built-in internal heating supports cold-weather charging down to −20°C (−4°F): below 0°C (32°F), incoming charge current from a connected charger (at least 0.5A) warms the battery, and charging resumes automatically once it reaches 5°C (41°F).
  • Smart Bluetooth Monitoring: Connect to the free Epoch Li-Ion app for iOS and Android to track real-time state of charge, voltage, current, temperature, and battery status directly from your smartphone. The shunt is built into the BMS, so no external shunt is needed.
  • Versatile Series & Parallel Expansion: Highly scalable architecture allows you to easily connect up to 4 batteries in series (for 24V, 36V, or 48V systems) and up to 4 in parallel (for a massive 420Ah capacity bank).
  • IP54 Splash & Dust Resistant: Housed in a durable, dust-protected, and splash-resistant enclosure for protected RV, marine, mobile, and outdoor compartments. Not submersible.
  • Advanced Smart BMS Protection: The integrated Battery Management System automatically guards your investment against over-charge, over-discharge, over-current, short circuits, and extreme high/low temperatures.
  • 4,000-Cycle Life & Maintenance-Free: Rated for 4,000 cycles with at least 80% of capacity remaining, with no watering, acid service, or routine lead-acid maintenance required.
  • 11-Year Limited Warranty: 3 years of free replacement, then 40% off MSRP on a rep
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Epoch Batteries 12V 105Ah (1.34kWh) Essential Series LiFePO4 Battery

Epoch Batteries 12V 105Ah (1.34kWh) Essential Series LiFePO4 Battery

Epoch Essentials · Heated · Bluetooth · Group 24

Epoch Essential Series 12V 105Ah Heated & Bluetooth LiFePO4 Battery

A premium 12V 105Ah LiFePO4 battery with Group 24 drop-in size, internal heating, Bluetooth monitoring, smart BMS protection, and 1.34kWh of stored lithium energy.

This heated lithium battery is not just another 100Ah-class option. The Epoch Essentials 12V 105Ah lithium battery delivers more capacity than the standard 12V 100Ah deep cycle replacement while adding built-in Bluetooth, cold weather charging support, smart BMS protection, and an 11-year limited warranty in a compact Group 24 lithium battery footprint.

105Ah
Capacity
1.34kWh
Stored energy
Group 24
Drop-in size
22.1 lb
Lightweight
Bluetooth
App monitor
Heated
Cold-weather charging

Built to go further

11-year limited warranty 3 yrs free replacement
Epoch Essentials Feature-rich value
Group 24 footprint Fits compact trays
Smart BMS protection Built-in safety
Bluetooth app Real-time visibility
Internal heating Cold-weather support

The Ultimate Group 24 Deep Cycle Lithium Upgrade

A smarter 12V 100Ah deep cycle replacement with 105Ah of capacity, Bluetooth, and internal heating.

The Epoch Essential Series 12V 105Ah LiFePO4 battery gives RV, marine, van, solar, and off-grid users a compact drop-in replacement for heavy lead-acid or AGM batteries. With a Group 24 footprint, 22.1 lb weight, and 1.34kWh of stored energy, it delivers dependable lithium runtime without taking up extra space.

Unlike many bare-bones budget batteries, this model includes the premium essentials customers actually want: internal heating for cold weather charging, a Bluetooth battery monitor through the free Epoch Li-Ion app, and smart BMS protection for safer everyday use.

True Drop-In Group 24 Size

The compact 10.25 in × 6.75 in × 9.00 in footprint is designed for Group 24 battery trays, marine battery boxes, and RV battery compartments. Always verify tray fitment, cable clearance, hold-down strap location, and terminal access before installation.

Lightweight Power

At only 22.1 lbs, this lightweight lithium battery can remove significant weight compared with traditional lead-acid options, helping improve RV payload efficiency, boat handling, and overall system serviceability.

Premium Tech Built into our Essentials Package

Internal heating, Bluetooth monitoring, and smart BMS protection separate it from basic budget batteries.

Smart Internal Heating for Cold-Weather Charging

Charging lithium cells below freezing can damage them, so the BMS never starts charging while any battery temperature reading is below 0°C (32°F). Instead, incoming charge current powers internal heating pads — never the battery's stored energy — and charging resumes automatically once the battery reaches 5°C (41°F). The heater needs a connected charger supplying at least 0.5A. The heating system is tested to −20°C (−4°F) and rated for external ambient temperatures down to −40°C (−40°F).

Built-In Bluetooth & Free Epoch Li-Ion App

No external shunt is needed: a BMS-integrated shunt measures current with 0.2A accuracy on discharge. The built-in Bluetooth module connects to the free Epoch Li-Ion app for iOS and Android, so you can view state of charge, voltage, current, temperature, and battery status from your phone. The Bluetooth security PIN is printed on the battery's lid and can be changed in the app under Advanced Settings.

105Ah Capacity: More Power Than the Standard 100Ah

That extra 5Ah provides 1.34kWh of stored energy (12.8V × 105Ah), giving you more runtime for trolling motors, CPAP machines, RV electronics, lights, pumps, refrigerators, and off-grid loads in the same compact Group 24 size class.

Expandable Power for Any Application

Build larger 12V, 24V, 36V, or 48V systems with matched batteries.

Build 24V, 36V, or 48V Systems

Wire up to 4 batteries in series to create 24V, 36V, or 48V systems for compatible trolling motor, golf cart, solar, or mobile power applications. For more capacity at 12V, wire up to 4 batteries in parallel for up to 420Ah. The maximum configuration is 4S4P. Always use matched batteries of the same model, age, capacity, and state of charge.

Compatible applications

RV, marine, solar, off-grid, backup, and trolling motor upgrade systems.

  • ✓ 12V RV house-power systems, camper trailers, travel trailers, motorhomes, and van conversions.
  • ✓ Marine house batteries for electronics, pumps, lighting, fish finders, and accessories.
  • ✓ 12V trolling motor upgrade applications where current requirements match battery ratings.
  • ✓ Solar energy storage for cabins, trailers, boats, and off-grid battery banks.
  • ✓ Backup power for CPAP machines, refrigerators, emergency electronics, and small inverters.
  • ✓ 24V, 36V, or 48V builds using matched batteries in series, up to 4 batteries.
  • ✓ Parallel 12V battery banks up to 4 batteries for more amp-hour capacity.
  • ✓ Group 24 lead-acid or AGM replacement applications where tray, charging, and wiring requirements are compatible.

Battery features

Feature-rich Epoch Essentials performance in a compact Group 24 format.

105Ah capacity Gives you 5Ah more than the common 100Ah class while staying in a compact Group 24 footprint. Rated at 0.2C.
1.34kWh lithium battery 1,344Wh of stored deep-cycle energy for RV electronics, trolling motors, CPAP machines, lights, refrigerators, and solar storage.
True Group 24 lithium battery size Fits many standard Group 24 RV trays and marine battery boxes without custom fabrication.
Internal heating Below 0°C, charge current powers heating pads that warm the battery to 5°C before charging resumes.
Bluetooth battery monitor The Epoch Li-Ion app shows SoC, voltage, current, temperature, and status from a built-in BMS shunt; no external shunt needed.
Smart BMS protection Helps protect against overcharge, over-discharge, over-current, short circuit, and high or low temperature conditions.
105A continuous discharge Supports demanding 12V loads while maintaining stable LiFePO4 voltage output. 52.5A (0.5C) is the recommended current for sustained loads.
100A max continuous charge Allows fast charging with a compatible LiFePO4 charger, converter, or charge controller. 50A is the recommended charge current.
200A peak discharge Provides short-duration peak output for up to 10 seconds.
IP54 protection Dust protected and splash resistant for protected RV, marine, and mobile compartments. Not submersible.
4,000-cycle life Rated for 4,000 cycles with at least 80% of capacity remaining, with much less routine maintenance than lead-acid batteries.
Series and parallel expansion Supports up to 4 batteries in series and up to 4 batteries in parallel, to a maximum 4S4P configuration.
Certified cells UL 1642 and IEC 62619:2022 certified cells, CE and RoHS marked, and UN 38.3 tested for shipping.

Compatible chargers and accessories

Recommended add-ons for a complete 12V lithium installation.

✓ Epoch 12V 15A LiFePO4 battery charger
✓ Battery tray for Epoch 12105A-H and 12100-ECO models
✓ Lithium-compatible RV converter, solar charge controller, inverter charger, or DC-to-DC charger
✓ Properly sized fusing, bus bars, cables, and power distribution blocks

P54 weather-resistant protection

Dust protected, splash resistant, and built for protected mobile compartments.

The IP54 enclosure helps protect against dust and water splashes in protected RV, marine, van, and off-grid battery locations. It is not designed for submersion, pressure washing, or standing-water installations.

Why upgrade to Epoch LiFePO4?

More usable energy. Less maintenance. Smarter battery visibility.

LiFePO4 technology provides stable voltage output, long cycle life, fast charging capability, and maintenance-free operation. Compared with lead-acid batteries, this Epoch Essentials battery delivers more usable energy in a lighter package while adding Bluetooth monitoring, internal heating, and smart BMS protection.

Fitment and charging note

Verify your tray, wiring, charger, and system design before installation.

Always confirm Group 24 tray dimensions, terminal access, cable clearance, charger compatibility, overcurrent protection, and system requirements before installation. Use a LiFePO4-compatible charger, RV converter, solar charge controller, inverter charger, or DC-to-DC charger programmed within Epoch’s recommended charging parameters, and tighten the M8 terminal hardware to 8–12 N·m.

Specifications:

Epoch Batteries 12V 105Ah (1.34kWh) Essential Series LiFePO4 Battery
ELECTRICAL
Nominal voltage 12.8 V
Capacity 105 Ah @ 0.2C
Stored energy 1.34 kWh (1,344 Wh)
Operating voltage 10.0–14.6 V
Max charge voltage 14.6 V
Internal resistance ≤ 30 mΩ
Low-voltage disconnect 10.0 V; reconnect 12.0 V
Cycle life 4,000 cycles with ≥ 80% capacity remaining
CURRENT RATINGS
Continuous discharge 105 A
Recommended discharge 52.5 A
Peak discharge 200 A for up to 10 s
Continuous charge 100 A
Recommended charge 50 A
Short-circuit protection 600 A @ 500 µs
CHARGE SETTINGS (LIFEPO4)
Bulk / absorption 14.2–14.4 V
Absorption end Charge current ≤ C/20 (5.25 A) or 15 min, whichever comes first
Float Disabled (preferred) or 13.3–13.6 V
Re-bulk 13.2 V
Temp. compensation 0 mV/°C (off)
Equalization Disabled
TEMPERATURE
Charge (with heating) −4 °F to 131 °F
Discharge −4 °F to 140 °F
Storage (recommended) 32 °F to 95 °F
Self-discharge ≤ 3% per month
Heating Pauses at 0 °C, resumes at 5 °C; min. 0.5 A
MECHANICAL
Dimensions (L × W × H) 10.25 in × 6.75 in × 9.00 in
Weight 22.1 lb (10.02 kg)
Group size BCI Group 24
Terminals M8 female (M8 bolt)
Terminal torque 8–12 N·m (71–106 in-lb)
Enclosure IP54 per IEC 60529
SYSTEM AND COMPLIANCE
Bank limits 4 series · 4 parallel (max 4S4P)
Monitoring Yes — Epoch Li-Ion app (iOS and Android)
Current sensing BMS-integrated shunt; 0.2 A accuracy on discharge
Cells (cell-level) UL 1642; IEC 62619:2022
Product CE; RoHS
Transport UN 38.3; Class 9 lithium battery shipping classification

Frequently Asked Questions

Is this battery a direct replacement for my standard 12V RV or boat battery?

Yes. The Epoch 12V 105Ah Essentials battery is designed as a Group 24 drop-in replacement for many standard 12V RV and marine battery trays. It measures 10.25 × 6.75 × 9.00 in and weighs 22.1 lb, offering far less weight and more usable energy than many lead-acid or AGM batteries. Always verify tray dimensions, cable clearance, terminal orientation, and charger compatibility before installation.

Do I need to buy a separate battery monitor or shunt?

No. A BMS-integrated shunt measures current with 0.2A accuracy on discharge, and the built-in Bluetooth module sends state of charge, voltage, current, internal temperature, and battery status to the free Epoch Li-Ion app on a compatible iOS or Android device. The Bluetooth security PIN is printed on the battery's lid; you can change it in the app under Advanced Settings.

How does the internal heating feature work?

Charging lithium cells below freezing can damage them, so the BMS never starts charging while any battery temperature reading is below 0°C (32°F). Instead, a connected charger supplying at least 0.5A powers internal heating pads, using incoming charge current only and never the battery's stored energy. Charging resumes automatically once the battery reaches 5°C (41°F). The heating system is tested to −20°C (−4°F) and rated for external ambient temperatures down to −40°C (−40°F).

an I wire these batteries together to make a 24V or 36V trolling motor system?

Yes. The Epoch 12V 105Ah Essentials battery can be wired in series up to 4 batteries to create 24V, 36V, or 48V systems. It can also be wired in parallel up to 4 batteries to increase total amp-hour capacity, to a maximum 4S4P configuration. Use matched batteries of the same model, age, capacity, and state of charge, and follow Epoch installation guidance.

Why choose a 105Ah battery instead of the industry-standard 100Ah?

Epoch packs 105Ah into the Group 24 size class, giving you 1.34kWh of stored energy in a compact footprint. That extra 5Ah can provide additional runtime for trolling motors, RV electronics, lighting, refrigeration, CPAP machines, pumps, and other 12V loads without taking up more physical battery space.

Can I charge this with my existing alternator or standard battery charger?

For best performance and lifespan, use a charger, RV converter, solar charge controller, or inverter charger with a dedicated LiFePO4 charge profile. Epoch lists 14.2V–14.4V bulk/absorption ending at C/20 (5.25A) or after 15 minutes, float disabled preferred or 13.3V–13.6V, 13.2V re-bulk, equalization disabled, and temperature compensation off. The recommended charge current is 50A (100A maximum continuous). For alternator charging, a DC-to-DC charger is highly recommended to protect both the alternator and battery.

Is this battery heated and Bluetooth enabled?

Yes. This model includes both internal heating for cold-weather charging support and Bluetooth app monitoring. These are the key premium features that separate it from many lower-cost bare-bones 12V 100Ah deep cycle replacement batteries.

Is this battery waterproof?

This model is IP54 rated, meaning it is dust protected and splash resistant for protected RV, marine, van, and mobile power compartments. It is not designed for submersion or locations where standing water can collect around the battery.

How should I store the battery?

For long-term storage, charge the battery to about 50% state of charge, disconnect loads and chargers, and store it clean and dry at 0°C to 35°C (32°F to 95°F) where practical. Check the state of charge at least every 3 months and recharge as needed.

Product Documents:

Epoch Batteries 12V 105Ah (1.34kWh) Essential Series LiFePO4 Battery User Manual

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Epoch Batteries 12V 105Ah (1.34kWh) Essential Series LiFePO4 Battery Specification Sheet

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