BSLBATT supplier with 17 years of experience in batteries and battery pack manufacturing, LiFePO4 battery is now very popular to use in RV, Marine, Golf cart, Solar due to its lightweight and. 12V lithium battery. Over 2000 cycle life with built-in BMS. IEC/CE/ROHS/UN38.3/MSDS. Our wide variety of standard and high performance batteries ensure we have what you need, when you need it.