Portable Multi-funtional power system

The type of the inside battery: free maintenance lead-acid battery.
Voltage of the battery: 12V/DC.
The capability of the battery: 20AH.
DC overload protect current: 12A (Interior-style, recover automatically)
Output voltage: 220V/AC Revised sine wave.
Continuance output power: 240W.
Continuum output power (10 minutes): 300W.
Output frequency: 50HZ HZ.
Protect function: alarm, over discharging protect;Overload protection; short circuit protection; reverse connection protection etc.
Installed fuse: 40A.
The external charger: charged by the 220V AC electrical source
Portable Multi-funtional power system