Energizer EN1100 User Manual page 5

Multiply: AC AMPS X 110 (AC voltage) = WATTS
This formula yields a close approximation of the continuous load of your
appliance.
Multiply: WATTS X 2 = Starting Load for most appliances
This formula yields a close approximation of the starting load of most
appliances. Exceptions are motorized appliances such as pumps,
freezers and air conditioners. These appliances can have startup loads
of up to eight times the rated watts.
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