Something draining my battery?
 

I bought my 66 and have been upgrading things like the altanator. Voltage regulator, battery and cables. Cleaning up some of the wiring. And I can jump start my truck and drive it all around but when I come out the next day my battery is dead. Any common issues on these trucks I should look for?
Thanks guys
Tony from Norcal
Posted via Mobile Device

Re: Something draining my battery?
 

put a test light between the positive cable and positive battery terminal (unhook the positive cable) and then pull fuses one at a time until you find the circut that is causing the draw.

Re: Something draining my battery?
 

could be a loose ground on the charging system that isn't charging your battery.

Re: Something draining my battery?
 

Did you unhook the battery before you installed the voltage regualtor? Very easy to short it out if you installed while battery hooked up. Could be the case why you can jump it and it'll run, but not recharging.

Re: Something draining my battery?
 

Thanks guys I will try the light tester and battery trick by pulling the fuses one by one! I did install the voltage regulator with no battery hooked up. It seems like the battery is getting charged while it is running. By something is draining it over night. Thanks again. I'll keep trying.
Tony from Norcal
Posted via Mobile Device

Re: Something draining my battery?
 

Yeah, your going to have to start poping fuses.

Re: Something draining my battery?
 

When using the testlight method if you havent found the problem after pulling the fuses one by one try unhooking the wire from your horn relay to the horn and see if that turns off the testlight. I had a horn relay go bad on me once and caused this problem. Drove me nuts for days till I figured it out. I also had the same problem on a different vehical it was a faulty voltage regulator..

Re: Something draining my battery?
 

/\ /\ good advice

Re: Something draining my battery?
 

Bad battery?

Re: Something draining my battery?
 

seriously doubt that, but it is possible. Some circut is staying powered. need to locate and fix.

Re: Something draining my battery?
 

update?

Re: Something draining my battery?
 

I had a '69 with a bad horn relay that was draining the battery. It wasn't until the horn stuck on that I found the problem. As soon as I disconnected that relay the battery drain stopped.

Re: Something draining my battery?
 

Horn relay gave me some grief as well