Description
When your system operates in cold climates and you can't afford to lose charging capability when temperatures drop, the Epoch 12105A-H is the battery that solves that problem 105Ah of LiFePO4 power with built-in internal heating, Bluetooth monitoring, and an advanced BMS all packed into a compact Group 24 footprint.
- Internal Self-Heating for Cold-Weather Charging – Built-in heater activates automatically when temperatures fall below the safe charge range, warming cells before accepting charge current so you never lose charging capability in freezing conditions.
- Bluetooth Monitoring via iOS & Android – Connects to the Epoch Li-Ion app for real-time battery status, state of charge, and system diagnostics directly from your phone without additional hardware.
- 4,000+ Cycle LiFePO4 Chemistry – Stable lithium iron phosphate chemistry delivers over 4,000 maintenance-free cycles, dramatically outlasting AGM and lead-acid alternatives in deep cycle applications.
- 105A Continuous Output with 200A Peak – Handles 105A of continuous discharge with a 200A peak for 10 seconds, backed by an advanced BMS with 600A short-circuit protection rated at 500 microseconds for rapid cutoff.
- Scalable 4S4P Configuration – Connect up to 4 in series for 48V systems or up to 4 in parallel for expanded 420Ah capacity, supporting battery banks up to 21.50kWh at maximum configuration.
The 12105A-H is built for systems that need reliable 12V house power with cold-weather resilience RV and motorhome house banks, marine electronics, solar storage for cabins and off-grid setups, van builds, and overland rigs that push into cold territories where standard lithium batteries start refusing to charge. At 1.34kWh of stored energy with 80% planning energy of approximately 1.07kWh, a single unit runs a 100W DC load for roughly 10.7 hours and a 500W load for about 2.1 hours under real-world conditions.
The ABS/PC blend UL94-V0 enclosure with IP54 weather resistance handles everyday outdoor and marine exposure, while the M8 female/bolt terminals provide a solid, low-resistance connection for high-current applications. Self-discharge is rated at just 3% per month, so the battery holds its charge during storage without requiring constant maintenance charging.
Certified to UL 1642 and UL 9540A cell standards, IEC 62619:2022, CE, and RoHS compliance, and shipped as UN 38.3 Class 9 lithium this battery meets the requirements for residential, marine, and mobile installations and ships without restriction.
Technical Specification
| Specification | Epoch 12105A-H |
|---|---|
| Model | 12105A-H |
| Series | Essential Series |
| Chemistry | LiFePO4 |
| Nominal Voltage | 12.8 V |
| Nominal Capacity | 105 Ah |
| Nominal Energy | 1.34 kWh |
| Operating Range | 10.0 – 14.6 V |
| Max Charge Voltage | 14.6 V |
| Max Continuous Charge | 100 A |
| Recommended Charge Current | 50 A |
| Max Continuous Discharge | 105 A |
| Peak Discharge (10 sec) | 200 A |
| Short-Circuit Protection | 600A @ 500us |
| Internal Resistance | ≤ 30 mΩ |
| Bulk / Absorption Voltage | 14.2 – 14.4 V |
| Cell Configuration | 4S1P Prismatic LiFePO4 |
| Series Configuration | Max 4S (up to 48V / 51.2V) |
| Parallel Configuration | Max 4P |
| Max Configuration | 4S4P (21.50 kWh) |
| Cycle Life | 4,000+ Cycles |
| Self-Discharge | ≤ 3% per Month |
| Charge Temperature | -20°C to 55°C (with heating) |
| Discharge Temperature | -20°C to 60°C |
| Storage Temperature | 0°C to 35°C (Recommended) |
| Internal Heating | Yes |
| Bluetooth Monitoring | Yes – iOS / Android |
| Dimensions (L x W x H) | 10.25 x 6.75 x 9.00 in |
| Weight | 22.1 lbs (10.02 kg) |
| Group Size | Group 24 |
| Terminal | M8 Female / M8 Bolt |
| Enclosure | ABS/PC Blend, UL94-V0 |
| IP Rating | IP54 |
| Altitude | < 3,000 m |
| Cell Compliance | UL 1642, UL 9540A, IEC 62619:2022 |
| Product Compliance | CE, RoHS |
| Transport Classification | UN 38.3, Class 9 |
| Warranty | 11 Years |
Specs & Info