3168 Wh Capacity Long-lasting Li Fe P04 Battery with More Than 3, 500 Cycles Maximum 4000W Charging Power Fully Charged in 1 Hour (AC + Solar) 2000W Max Solar Charge Fully Charged in 2.5 Hours 5 Ways to Charge (AC/ Solar/ Auto/ Generator/ Dual AC+ Solar) 3500W Pure Sine Wave AC Alternating Current (6000W peak) 14 Versatile Sockets for 99% of Devices 15ms Connection to the Power Grid for 24/7 UPS Smart App Control (Wi Fi & Bluetooth Connection) Expandable up to 101 k Wh with B3000 Extension Battery ** 5-Year Worry-free Guarantee