LiFePO4 Battery With 3,500+ Life Cycles to 80% Smart APP Control (WiFi & Bluetooth Connection) 6 Ways to Recharge (AC/Solar/Car/Generator/Lead battery/Dual charging(Dual AC/AC+Solar)). 5,000W Rated Power (10,000W Surge). Expandable Capacity From 3,072Wh to 18,432Wh.