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Using a car battery to power a TV - Little bit of help needed.

Using a car battery to power a TV - Little bit of help needed.


Old 09-10-11, 10:00 AM
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Using a car battery to power a TV - Little bit of help needed.

First of all, hello everyone at DIY.com.

So here's my problem, I'm thinking of having a nice little gaming setup in my car, and have sourced myself a TV with a DC Input, sounds like it's going to be an easy fit as I don't need to buy a AC/DC invertor or anything like that, however, I have no idea where to start.

I have very basic wiring knowledge and little soldering skill so can perform simple tasks such as rewiring the power adapter and such, but as said, I do not know where to start.

A few pictures may help this thread as it's a bit vague at the moment.

Does this mean that I can run wires straight from the battery into the jack that plugs in here? With an inline fuse?

Since a car runs at 12-14V, would the TV not run well as it's supposed to be run at 15v? Or is this a max figure? Working out the fuse size turns out to be higher than the "Max" amp figure, will I blow my TV if I used a 5 amp fuse?

Thank you so much to anyone that can help, any additional info on how to wire everything would be very helpful and I'd be very grateful.
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Old 09-10-11, 12:30 PM
Join Date: Mar 2006
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Your first picture is too fuzzy for me to see anything. You can use a 5 ampere fuse without problem. Whether or not a 12 volt nominal source is sufficient I don't know but more likely than not it would be.
Old 09-10-11, 02:21 PM
Join Date: Oct 2002
Location: Hamilton County, Ohio
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The diagram shows the plug tip as positive and the shell of the plug as negative. Be certain that you wire the plug to the battery correctly. A 5 amp fuse should be sufficient as it gives a little less than a 20% safety factor.
As to how well it works, give it a try. Most electronic products can handle some voltage variation (in this case it's 10% or less).

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