Please help! '72 c10 keeps draining my battery.

[spaded1605]

I am currently on my second battery for my '72 chevy c10. I just recently purchased the truck from a family member everything is original and for the most part works great. i have had the alternator tested and it tests exactly where it should be. i think possibly i could have a ground some where. ?????????????????????????????

[stich626]

pull one fuse at a time with a test light between the - battery post and cable..
light goes out.. there is your drain

[VetteVet]

Go to the search box at the top of this page and type "battery drain" and click on the 67-72 Chevy trucks.com button and click search. You'll get tons of pages on the subject.

[jv65]

first i would check is how much voltage at the battery and then check that starter i know there is a few times i ve ran into faulty ones intr=ernal parts either grounded out and drained my battery at least i think try that first

[Longhorn Man]

if original, there is an external voltage regulator.
You need to see if your battery is getting charged, or if you have a key off drain.