50Ah Rechargeable LiFePO4 Lithium Iron Phosphate Battery 4500+ Deep Cycle RV
MODEL: 50Ah 12.8V(4S9P). Built-in high-temp cut off prevents charging over 167 °F (75 °C). PFCTART LiFePO4 battery is IP65 level waterproof, which set you free from worrying to install indoors or outdoors.