How long will a car battery last running a tv and a game system?

This would be with the ignition in the acc position. If I need to change something in order to do this please tell me how or post a link.How long will a car battery last running a tv and a game system?the more batteries you add the longer you add the longer it will last. But adding more batteries is just pointless just turn your car on for 5 or 10 min every once in a while so ur alt can charge your battery. But i would not play it for any longer than 30 min or so without turning my car on to charge my battery back up.How long will a car battery last running a tv and a game system?There is a way to calculate an approximate time but you'd need to know the Ah (ampere/hour) of the battery and current draw (amperes) of all equipment.



You will also need an inverter. 120 volt AC devices won't run from a 12 volt DC battery. The inverter should be big enough to handle the current of all connected devices.How long will a car battery last running a tv and a game system?NOT LONG.How long will a car battery last running a tv and a game system?Immm goonna out on a Limb here....If i had to guess without any particular formula or equation.Well,most small tv's around 19 inch draw in the ranges of 2 to 3 amps.I would imagine a small screen would be between .7 and 1.7.Giving the worst scenario which would be 3 amps(TV) plus 4 amps(the game console).....totalling 7 amps.



7 amps alone would be a great CHARGE.....so draining at that rate would be around 1hr before your battery gets to low to start vehicle.You need to leave enough power to start vehicle,otherwise you can probably go for a 1/2 hr longer or more.DEPENDING ON THE BATTERY.Im guessing for an larger(truck type) battery.



Now if you had a deep cylce battery it would last even longer.



This is a Complete guess without the actual number equations.

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