Magnum Energy MS2000 MS Series 2000 Watt, 12V Inverter/100 Amp PFC Charger/30Amp Single Input/Output, Input battery voltage range 9 - 17 VDC, Nominal AC output voltage 120 VAC, Output frequency and accuracy 60 Hz +/- 0.04%, Rated input battery current 225 ADC, Inverter efficiency (peak) 89%, Transfer time 16 msecs, No load (120 VAC output) 25 watts (MS-2000 MS 2000)