My battery in my car won't stay charged...you can run the car all day long and the next morning the darn battery is dead again and have to hook the jump box on it, its a good battery and the alternater is working fine, but will not stay charged.

 

Check to see if anything is left on, like the hatch light or something. Also, you have anything hooked up to the lighter, like a radar detector? I know in my 91 it's hot at all times, so I have to physically unplug it everytime I turn off the car.

How many times has the battery drained itself? You may want to replace again if its done it many times.

 

This happends STILL on my 87 camaro

Don't know what causes it, but am planning on finding out soon

it's a new battery, also
if you leave the car off, the battery will drain at an incredible rate, actually

nothing is on that i know of, but will keep looking.

 

Yeah it has happened several times to me ......nothin is on in my car.