1,charge current adjustable 2,LCD display inverter 3,pure sine wave inverter 4,super charger inside 5,CE ,SONCAP EP3000series pure ... sine wave Super battery charger inverter Main features:1, rated power: 1000w 1500w 2000w 2500w ... 2, NEW funcitons: RS232 port Charge current adjustable3, DC voltage: 12V DC, 24V DC, 48V DC4, battery charger buit in: 35-70amp5 ...