1995 Pontiac Bonneville ssei.this car always had a problem with the battery draining overnight
i just unhooked the negtive.now its bad.i charge the battery up and run the car and then shut it off for like 5 min and go to start it click click battery dead the altnater is good the battery is new there are know lights staying on the raido antena aint running the leveler compreser aint running i dont know what to do please help..thanks

Sounds like you have bad battery cables. make sure all are clean and tight, both ends of both cables. If all is clean then you may need to replace the battery cables.

thanks will do

https://www.gmforum.com/trouble-shooting-test-procedures-141/amp-draw-test-293647/

the cables wont drain your battery, they may prevent the battery from being charged but you saud you externally charged it

Lift the hood and look at the driverside front fender in the engine bay. There is a little compressor located on it. Disconnect the 4 wire connector that goes to it.

This is your ELC compressor. In 95 and earlier cars this was directly wired to the battery via relay. Therefore if your struts began to leak, it would pump them up all night and drain the battery. I would suggest moving the trigger for the relay from battery to an ignition source used for one of the other relays in the maxifuse center. This will make the compressor only work with the key on.

Now the car has a nother problem.i hafe to use a jumper pack to get the car started. then i run it and shut it off.its got tons of juice but nothing not even a click ,the battery is 100% chagered.im stumped.but it fires up fine with the jumper pack.

Did you check your connections? It was mentioned on here a few times but we never heard back. This definitely sounds like a connection issue. If you have a loose or corroded cable you're not getting any click because it'* not making good contact.

Are the lights on and bright in the interior when you open the doors?

yea everything is good and bright,the battery cables are clean the starter wire and starter are all clean?

How about the grounds?

Bright interior lights is a good sign, but doesn't necessarily rule out a bad connection somewhere. Starting uses a heck of a lot more current than the lights.

There'* a few easy things to check. First, check the voltage at the terminal on the starter coming from the battery. It'* the largest connector and should read the same voltage as your battery. If you have another person to help, being VERY careful, check the voltage on the solenoid while someone turns the key. This wire here is enabled by the security system and should go to 12 V if your ignition is passing a start signal.

thanks i will do that.i will check the grounds too.