Feuruetc 12V 100Ah LiFePO4 Battery 2-Pack with 100A BMS

A compact battery setup serves a different need than a system built around larger, heavier units. The Feuruetc 12V 100Ah LiFePO4 batteries are designed for RV travel, camping, and off-grid energy storage. Their built-in 100A BMS adds protection during use, while the compact size helps with installations where space matters.

The essentials

This set pairs two 12V 100Ah LiFePO4 batteries for applications such as a travel trailer, camper, home energy storage system, marine trolling motor, or off-grid setup. Each battery measures 12.83 x 6.69 x 8.46 inches and weighs about 22.05 pounds, with a form factor designed to fit a BCI Group 31 battery box. That makes it easier to plan around a defined battery space in an RV or other installation.

The built-in 100A battery management system (BMS) helps protect the battery from overcharging, over-discharging, short current, high temperature, and overcurrent. For everyday use, that protection is especially relevant in systems where charging and power loads vary, such as a camper using stored energy between stops or a solar-powered off-grid setup.

How it fits

Choose this battery format when you need a compact 12V power source for a defined installation rather than a single oversized battery. Its listed applications include RVs, campers, marine trolling motors, home energy storage, and off-grid power. For example, an RV owner can plan around the stated dimensions when arranging a battery box, then use stored power as part of the trailer’s power setup while camping.

The batteries are rechargeable and can be connected in series or parallel to expand a compatible system. The stated configurations allow up to four in series or four in parallel, with options ranging from 12.8V to 51.2V in series and 100Ah to 400Ah in parallel. This offers a way to plan for different voltage or capacity needs without changing the basic battery format.

Getting the most from it

The cycle-life figures vary with depth of discharge: 4,000 cycles at 100% DOD, 6,000 cycles at 80% DOD, and 15,000 cycles at 60% DOD. Those figures help when comparing batteries for recurring use, since the listed cycle count depends on how deeply the battery is discharged. For charging, the manufacturer recommends a 14.6V, 20A charger and estimates about five hours for a 100Ah battery. Use the charger and wiring appropriate to your setup, particularly when connecting batteries in series or parallel.

Before you decide

What does the built-in 100A BMS protect against? It is designed to protect the battery from overcharging, over-discharging, short current, high temperature, and overcurrent during operation.

What charger is recommended? The recommended charger is 14.6V at 20A. The stated charging estimate is about five hours for a 100Ah battery.

Can the batteries be connected to expand a system? The listed configurations support up to four batteries in series or four in parallel. Series connections provide higher voltage, while parallel connections increase capacity, choose a configuration suited to your system.

Final verdict

For RV, camping, and off-grid users who want a compact LiFePO4 battery format with built-in 100A BMS protection, this Feuruetc set combines defined installation dimensions with rechargeable power and options for expanding a compatible system. It’s a practical fit when space, 12V battery planning, and repeat-use cycle life are central to the setup.