Built-in solar controller Built-in lithium ion battery Built-in ac charger Built-in inverter Model ps8030b Batterycapacity 8.0kwh Type 18650 li-ion battery Outputrated output power 3000w 2000w Peak output power 4000w3000w Output voltage 220/230/240v ac100/110/120v ac Output frequency 50hz5hz60hz5hz Overload ability 120%