Plannning a long trip this weekend but had my car stall with a dead battery this last weekend. Had left the lights on while shopping and when I returned the car battery was dead. Jumped the car and drove it home. Found when I braked the headlights went dim. Got home and the battery was still dead. Took the battery in to be checked after putting it on the charger overnight and was told the battery was fine. Took the altenator to Auto Zone and it checked out OK. Cleaned all the cable connections. Anyone venture any other areas for me to check? Wife will kill me if we get stuck on the side of the road?

Wait after charging does your car work? If so then your should be fine since both alternator and battery are fine. You knew why it drained the first time.

unless you damaged the voltage regulator when jumping it.

BTW, It would kinda help if we knew what car you are talking about.