Im guna be going to alot of shows this summer and i was wondering what i need to buy to keep my battery from not dying, so i can run system, screen, angel eyes and such without my battery dying, any help on where to get them and how much it would run me?

 

run a seppt battery with an isolator this way you can power that stuff with one battery and still have a battery to start the car. depending on the show you may not be able to plug in and charge

 

You need a power supply like these.

http://www.cascadeaudio.com/prod/powersupp.html

I have APS-55 and the HK-4 hook up kit. I just park and plug in.

 

I've got an old Lambda lab grade power supply I picked up at an electronis surplus website..
12V (adjustable from 9-15V), 50A max output..
will run my car with the stereo cranked all day long.

paid around $60 for it.
source: www.mpja.com

Similar new product on Lambda's website:
http://lambdapower.com/products/lzs-series.htm


so check the surplus electronics shops for something like this. there's no need to pay $500 for one of those things.