With filtered modified sine wave output, the Freedom 458 inverter/charger has the ability to run electrical equipment, appliances and even sensitive electronics. Perfect for any RV, the temperature controlled multistage charging ensures that your batteries are recharged quickly, and safety features such as automatic shut down protects your expensive deep-cycle batteries from excessive depletion. MSW AC power inverter with high surge capabilityAutomatic 3-stage battery chargerTemperature compensation with equalization stage provides optimal charging of deep cycle batteriesBuilt-in transfer switch automatically transfers between inverter power and incoming AC powerPower sharing prevents source AC input circuit breaker from trippingIncludes battery temperature sensor30 month warranty