11High Surge AppliancesThe wattage rating of AC appliances is the average powerused by the appliance. Appliances such as televisions andappliances with motors consume much more power thantheir average rating when they are first switched on.Although the Duracell ® Powerpack can supply momentarysurge power up to 480 W, some appliances may exceedthe capabilities of the Duracell ® Powerpack and trigger thesafety overload shutdown circuit.Trouble AppliancesCAUTIONThe output of the inverter is non-sinusoidal. Someequipment may be damaged by the inverter’s modified sinewave output (non-sinusoidal).• Some appliances, including the types listed below, maybe damaged if they are connected to the inverter:• Electronics that modulate RF (radio frequency)signals on the AC line will not work and may bedamaged.• Speed controllers found in some fans, powertools, kitchen appliances, and other loads may bedamaged.• Some chargers for small rechargeable batteriescan be damaged. See “Precautions for UsingRechargeable Appliances” on page viii for details.• Metal halide arc (MHI) lights can be damaged.Note: If you are unsure about powering any device with theinverter, contact the manufacturer of the device.Operating Several Appliances at OnceYou can run several AC appliances if the total rating ofall the appliances (in watts) does not exceed 240 W. Run