I just bought a cap and I need some help. Is there ne thing i have to do b4 i stick it on my battery or do i have to do somet stupid charging thing first or what? I just bought it used and its jus the cap wit the dig read. Thanks guys

 

Yeah, you'll have to charge it.

 

what if its used how do i tell if it needs to b charged? and how do i go about charging it

 

They usually come with a little device with a light on it that indicates when it's charged. If the guy you bought it from doesn't it, I'm pretty sure you can pick one up at radio shack or make one for very cheap....look it up on a car audio site.