About this item Durable 12V 100Ah LiFePO4 Battery: 5000 cycles at 100% DOD deep discharge. A+ grade battery, SDS/UN38.3/FCC/CE/ROHS certified, with high standards of quality and safety. 999 times laboratory tested, impact resistant and IP67 waterproof. Lifespan up to 10 years, 6 times that of traditional lead-acid batteries. BCI Group24 Battery Box Size: Lithium batteries are compact and lightweight, with a volume of only 8.2*6.6*10.2 Inch and a weight as low as 23.2lbs (10.5kg), meeting the standards of BCI group 24-31. Compared with equivalent led-acid batteries, it reduces space and weight by more than 30%, making it a perfect substitute. It takes up little space and is not restricted in the direction of use, making it an excellent choice for use on board. Expandable 12V Battery System: Up to 48V and 20kWh. 12V 100Ah lithium battery supports 4 batteries in series, 4 batteries in parallel, or a flexible combination of the two. You can DIY your own power station! Due to its lightweight characteristics, it is very suitable for RVs, outdoor activities, boats, off-grid systems, and as a home backup power source. Built-in BMS Protection: LiFePO4 battery has built-in intelligent 100A BMS protection board, which can recover from low temperature, over discharge, over charge, high temperature, short circuit and over current without damaging battery performance. When the discharge current exceeds 300±50A, it will automatically disconnect the battery to ensure optimal safety and extend battery life. Low Temperature Protection: The 12V LiFePO4 lithium battery can operate smoothly in temperatures from -4°F (-20°C) to 158°F (70°C), and automatically shuts down below -4°F (-20°C), which is especially critical in winter. Meet the Needs of Various Scenarios: powering electrical appliances, lighting, and electronic equipment required when the RV is off-grid or driving. Marine batteries (fish finders, yachts, trolling motors), garden equipment (lawn mowers, trimmers, etc.), others (children's scooters, LED lights, phones, fans, alarm systems, security cameras, outdoor camping, laptops, etc.). It is worth noting that it is designed with a nylon handle, which is portable and more suitable for outdoor use. Fast Charging: Supports 3 charging methods, including solar, generator and grid, providing fast charging. 100ah LiFePO4 battery can be fully charged in just 2 hours, six times faster than traditional lead-acid batteries that take 14 hours. Makes off-grid battery system management more convenient.