Dimension (DxWxH) : 401 x 260 x 170 mm Weight : 12.5 Kg Capacity : 600 VA / 300 W AC Voltage : 160 ~ 250 V AC Current : 1.7 A AC Frequency : 50 5% Hz AC Protection : Fuse 6.3 A DC INT Battery : 1 x 12 V 7 Ah DC EXT Battery : 1 x 12 V Max 40 Ah DC Protection Fuse : 40 A INV Waveform : Synthesized Sinewave INV Voltage : 220 5% V INV Frequency : 50 Hz INV Efficiency : > 80% CHG Type : Constant Voltage CHG Voltage : 13.5 V CHG Current : 1.5 A Transfer Time : < 4 ms Back up Time : 10 min Indicator : LED & BUZZER