2gz

Has anybody figured out how to make the car charge a phone or anything while the vehicle is off? Im not even sure what to search for In the forums. Thanks

Mr Jokster

iTrader: (8)

Pretty simple re-wire. Easiest way to do it is find a "constant" in your fuse box and run a fused wire from there to the switch lead behind the lighter.

2gz

And doing this wouldn't kill the battery if I'm just charging my phone?

Mr Jokster

iTrader: (8)

If my math is right, it'll take about 4 months of constant charging without turning the car on to actually completely kill the battery.

Letsride

It depends of the condition of your battery and how long you leave it plugged in. Any device CAN drain a battery......it just depends on the current draw of the device thats left on

2gz

Battery is brand new and I'm just trying to charge my phone when the vehicle is off. I've never had a car that wouldn't charge a phone when the vehicle is off.

SoCal Cyco

iTrader: (20)

Mr Jokers, this is way off, i had my car sit for about 3 weeks and the battery died, and i had a relatively new yellow top optima battery

shwalker07

Chrysler was smart when it came to this as they used the cigarette fuse that could be in either two positions (cigarette lighter always have power or only have power with ignition on) depending on what you wanted.

Make sure if you do run power directly to it you do it right as if you plug in some higher load accessories, you do not want to burn up wiring or cause other problems in other circuits. I have seen those Viair air compressors do this and the wiring becomes super hot you can not even touch it.

Just another idea, maybe you might like adding a additional USB port instead similar to this and wire this in?

https://www.google.com/search?safe=o...Rrierdt7Y6EgM:

2gz

When I do this I just ground the black wire and run the red into a ''always on' fuse? I'll only use it to charge my phone. I'm very green when it comes to electrical work.

shwalker07

Correct. I am going to be installing one of these in my Lexus in the center armrest soon because it is annoying not having power when the car is off. A common fuse tap is this product:

https://www.gearbest.com/other-motor...CABEgL4TfD_BwE

which works very well for a quick add a circuit power line for low load applications.

2gz

Awesome find. What fuse would you recommend plugging into?

shwalker07

I would just check the fuses with a test light and see which one has power with the key out and the ignition off and tap into that one. A higher rated fuse would be better to tap into but I would avoid using any fuse that has to do with the air bag or abs system.