Maximum adjustable power (W) 520 W/850 VA Efficiency at full load 80,0 % Output frequency (network synchronization) 47-63 Hz Network synchronization Other output voltages 220 V Topology Support Signal type Stepwise approximation of a sine wave Transfer time 6 ms is typical: 10 ms maximum Input frequency 47-63 Hz Efficiency at full load 80,0 % Other input voltages 220 V Battery Type Lead-acid battery Typical recharge time 16hours(a) Rated battery voltage 12 V Expected battery life (years) 2-5 Battery power (W) 6 W USB Interface Port(s) Pulse energy rating 310joules Maximum height 120 mm, 12.0 cm Maximum width 130 mm, 13.0 cm Maximum depth 365 mm, 36.5 cm Net weight 4.5 kg