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How many watts does a TV use

While it runs, a TV draws 80 to 400 W and has no surge at startup. The smallest portable that can run it has 2,000 W.

400 Wrunning, top of range
2,000 Wsmallest generator that runs it

Watts while running and starting

LoadRunningStarting
TV, 32 to 55 in80 to 400 Wno surge

Source: the Champion wattage chart, 04-17-26. Check the nameplate on your own TV for the exact figure, in watts or in amps. Amps times 120 V gives watts; amps times 240 V applies only to a two-pole breaker load, such as a well pump.

The smallest generator able to start it

Your generator must handle 400 W, and stay at 80% of its rating or below. The smallest of the common portable sizes, 2,000 W, handles both jobs and leaves room to spare. Other loads add their running watts to that same generator.

Other loads with a TV, 32 to 55 in

TV, 32 to 55 in plusRunningPeak at a startSmallest portable
a freezer and lights1,050 W1,550 W2,000 W
a 1/2 hp sump pump and lights1,600 W2,700 W3,000 W
a microwave1,600 W1,600 W2,000 W
a 1 hp well pump2,400 W4,400 W4,000 W
a window AC, 10,000 BTU1,600 W2,800 W3,000 W

Running watts add together, and only the largest motor start piles on top of them. At startup, a portable puts out about 25% more than the rating it runs at. Every load appears on the appliance wattage chart.