If the label does not specify the wattage, but you know the Amperage (A), you can calculate it using the following formula: Amps (A) * voltage (V) = Watts Example: 3 Amps * 220 Volts = 660 Watts | 3 Amps * 110 Volts = 330 Watts
Type Amps & Voltage of your Appliance
How Long Can I Run The Inverter On My Battery?
Please note this calculator will only provide an approximation. Actual run times will vary based on many factors including but not limited to: battery quality, cabling, energy draw and replenishment.
Battery Capacity Choose your Battery type and enter Amps/Hrs of your battery & wattage of your appliance: