How long can i listen to music/ play a movie at a car show using the stock alt and battery? Without turning on the engine and just putting the key in the ON or ACC position. I'm just have a 5.6 in. IN Dash LCD and a PS2. Thanks

 

It's totally dependant on your battery and it's condition. Some battery has higher reserve rating than others, while some batteries are in better condition than other. Will your car be on display at the show, do you access to a wall outlet, maybe you can plug in a trickle charger while playing your music.

 

it's a brand new. 2003.

 

If your gonna be doing that get an optima yellow top. That's what they're made for so they are your best bet. Hope that works for ya. -Stephen