48V 100ah lithium-ion battery for energy storage system. Waterproof: IP65 Protection level. Floor or Power wall Mounting. Support Connected in parallel mode for expansion (up to 12 pieces). Built-in Battery management system (BMS). Built-in air switch, double protection. Iron Phosphate-lithium Battery Powerwall：90% DOD, More than 6000 cycle times. Long warranty period: 5 years. Convenient CAN&RS485 Communication.