640W 12.8V 50Ah LiFePO4 Battery Deep Cycle w/BMS Solar Cells for RV Boat Marine
MODEL: 50Ah 12.8V(4S9P). Rated capacity: 50Ah(640WH). Built-in high-temp cut off prevents charging over 167 °F (75 °C). LiFePO4 battery is IP65 level waterproof, which set you free from worrying to install indoors or outdoors.