12V 100Ah BCI Group 24 LiFePO4 Battery with BMS
$259
Key Specs
| capacity | 100Ah |
| voltage | 12V |
| chemistry | LiFePO4 |
| weight | 25.4 lbs |
| dimensions | 10.24 x 6.61 x 8.94 in |
| bms | 80A integrated |
| warranty | 3 years |
Pros
- ✓ Compact Group 24 size fits a wide range of trolling motor and RV applications
- ✓ Built-in BMS provides full cell-level protection
- ✓ Lightweight at under 26 lbs compared to 50+ lbs for AGM equivalents
- ✓ Competitive entry-level price for a 100Ah LiFePO4 unit
Cons
- ✗ No Bluetooth monitoring on this model
- ✗ BMS continuous discharge current limited to 80A
Detailed Review
Overview
The BCI Group 24 form factor sits between the compact Group 27 and the full-size Group 31, and it is the standard footprint for a large share of trolling motor setups, smaller RV house banks, and marine accessory circuits. This 12V 100Ah LiFePO4 battery targets buyers who need a genuine lithium upgrade without the price tag of a name-brand premium unit. It delivers reliable performance where it counts: deep cycle capacity, low weight, and solid BMS protection.
At roughly 10.2 x 6.6 x 8.9 inches, the battery slots directly into most Group 24 trays without adapter hardware. The polypropylene case is well-fitted, with flush terminal posts and a clean cable routing design that simplifies installation in tight bilge compartments or battery boxes.
Key Features
The integrated 80A BMS handles the standard protection suite — overvoltage, undervoltage, overcurrent, and short-circuit protection — and includes passive cell balancing. The 80A continuous discharge ceiling is appropriate for most applications in this size class, including electric trolling motors up to approximately 80 lbs of thrust and typical RV house loads.
Weight is a meaningful advantage here. Removing a 50-pound Group 24 AGM and replacing it with this 25.4-pound lithium unit is a tangible difference on a bass boat or a travel trailer where tongue weight matters. For anglers running extended float trips or overnight tournaments, the reduced drain on the trolling motor system translates directly to longer run time.
Performance and Capacity
LiFePO4 chemistry delivers a flat discharge voltage curve — the battery holds close to 12.8V through 90% of its capacity before dropping off, rather than the sloping curve of AGM. This means electronics and motors run at consistent power levels throughout the day rather than slowing as the battery depletes. Usable capacity at 100% DoD is the full 100Ah, roughly double the practical output of a comparable AGM discharged conservatively to 50%.
Cycle life is rated at 2,000 or more full cycles, and the three-year warranty provides reasonable coverage for a budget-tier unit.
Who It’s For
This battery is ideal for freshwater anglers upgrading a trolling motor bank, boaters who want a single-battery lithium house circuit, or small camper owners replacing a stock AGM. If you don’t need Bluetooth monitoring and are working within a tight budget, this Group 24 unit delivers genuine lithium benefits — lighter weight, deeper cycles, and longer lifespan — at an honest price.
