How Long Can A Car Battery Power A Fan. So that means that it could power 3 amps for 16 hours. If you have a spare computer fan 9V battery and a piece of duct tape you can make a portable fan in less than minute.
Extremely useful for cooling during du. Whats the rating in Amps of your fan. First as one responder suggested well assume the cigarette lighter stays on when the vehicle is off.
Of course you would not want your car battery to be drained lest it would not go on running.
Answer 1 of 8. So nominally the fan would run for 1200100 12 hours. Im going to cover to what extent a car battery can power a TV the best battery option to do the job and the ideal TV to use for maximum longevity of use. Pleasedodgevan2 January 24 2011 556am.
