Battle Born 100Ah 12V LiFePO4 vs Epoch Marine 12V 172Ah Group 31
Battle Born 100Ah 12V LiFePO4 (100Ah) vs Epoch Marine 12V 172Ah Group 31 (172Ah) compared spec-by-spec. Cycle life, BMS, pricing, pros, cons, and our verdict on which off-grid battery to buy.
| Specification | B — epoch Epoch Marine 12V 172Ah Group 31 8.3/10 $899
Price unavailable
| |
|---|---|---|
| Capacity Ah | 100 | 172 |
| Voltage | 12 | 12 |
| Energy Wh | 1,200 | — |
| Battery Type | LiFePO4 | LiFePO4 |
| Cycle Life | 3,000 cycles | — |
| Weight | 31 lbs | — |
| Dimensions | 12.75 x 6.88 x 9.0 in | — |
| Bms Included | Yes | — |
| Max Continuous Discharge A | 100 | — |
| Max Charge Rate A | 100 | — |
| Cold Temp Cutoff | 25F (-4C) | — |
| Operating Temp | 0-135F | — |
| Series Parallel | Yes | — |
| Ip Rating | N/A | — |
| Warranty | 10 years | — |
| Group Size | — | Group 31 |
Buy the Battle Born 100Ah 12V LiFePO4
Best prices · Updated hourly
Buy the Epoch Marine 12V 172Ah Group 31
Best prices · Updated hourly
Who Should Buy the Battle Born 100Ah 12V LiFePO4?
The Battle Born 100Ah 12V LiFePO4 is built for rv house battery, marine trolling, off grid cabin. Its 100Ah at 12V gives you 1.2kWh of usable energy — suitable for a standalone house battery or small bank.
Key advantages include: industry-leading 10-year warranty; built-in bms with low-temp charging cutoff; 100a continuous discharge — handles high-draw loads. At 31 lbs, it's manageable for a one-person install.
Priced at $925, the Battle Born 100Ah 12V LiFePO4 scores 9.2/10 overall — a top-tier result in our battery benchmarks.
Who Should Buy the Epoch Marine 12V 172Ah Group 31?
The Epoch Marine 12V 172Ah Group 31 is built for marine, trolling motor. Its 172Ah at 12V gives you 2.1kWh of usable energy — suitable for a standalone house battery or small bank.
Key advantages include: group 31 case drops into standard marine battery trays; 172ah at 12v for trolling motors and marine house loads; purpose-built marine sku from epoch's 2026 lineup.
Priced at $899, the Epoch Marine 12V 172Ah Group 31 scores 8.3/10 overall — a strong showing across the board.
How Do the Specs Compare?
Capacity: The Epoch Marine 12V 172Ah Group 31 offers more amp-hours at 172Ah vs 100Ah for the Battle Born 100Ah 12V LiFePO4. More Ah means more runtime before hitting the safe depth-of-discharge floor — critical for overnight draws and cloudy multi-day stretches.
Chemistry: Both batteries use LiFePO4 chemistry, so cycle life and thermal stability are in the same ballpark — the specs and price become the main differentiators.
Price: The Epoch Marine 12V 172Ah Group 31 costs $899 versus $925 for the Battle Born 100Ah 12V LiFePO4 — a $26 difference. For long-term value, divide the price by the rated cycle life to get a true cost-per-cycle comparison.
🏆 Our Verdict
Choose the Battle Born 100Ah 12V LiFePO4 if you need a more portable solution at 31 lbs and strong performance for its class.
Choose the Epoch Marine 12V 172Ah Group 31 if you prioritize value (typically $26 less) .
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