Heavy-Duty Inverter/Chargers (With Automatic Transfer Switching) These 600-3000 watt models provide the same premium features as the heavy duty inverters including up to 200% peak surge power, frequency-controlled output and high-efficiency operation They add an advanced 3-stage battery charger which recharges batteries while protecting against over-charge and over discharge. All models pass through filtered utility/shore power when available, automatically switching to battery power during a blackout (in stationary applications) or while driving (in mobile applications). RV Models include built in surge protection and moisture-resitance for marine applications.
