Crazy Battery Charging Problem - HELP! Options

[customstarr]

Ok... heres a good one: I've had my car for about three months - most of the time it's been in storage - never once lost a charge during the cold winter - even after sitting for weeks without starting. Last week, I brought it home from storage and started some detail cleaning on it - everything was fine.

Then, while driving it, it seemed the FI was messing up - just wasn't running that great. I get home, go to restart it and the battery is DEAD.

The PO put the wrong battery in it anyway, so I went and purchased a brand new battery today. I put it in, the car fires up and runs great - for a minute - then it seems like its acting up again. I shut it down, try to restart, and the BRAND NEW BATTERY IS DEAD.

Here's the kicker: My GEN light works - comes on during key up, but does not stay illuminated while running. How could a brand new battery get immediately drained after running for just a few minutes unless the ALT is bad - but then again, why am I getting no GEN light?

PLEASE HELP! Possible Voltage Reg problem?

[drive-ability]

Sounds to me your blaming the battery / saying its dead as a consequence of the car not starting, seems to me you don't have any data to back that up.
There are a lot of things that will cause a car not to start as you put it.
In short the only thing on the car that can draw that type of amperage would be on fire so its not likely..
Check the voltage from the battery terminals not the cable connections.
My guess is theres something else going on.

[customstarr]

Sounds to me your blaming the battery / saying its dead as a consequence of the car not starting, seems to me you don't have any data to back that up.
There are a lot of things that will cause a car not to start as you put it.
In short the only thing on the car that can draw that type of amperage would be on fire so its not likely..
Check the voltage from the battery terminals not the cable connections.
My guess is theres something else going on.

I think there may be some confusion here.

The old battery was drained the last time I drove the car - knowing it was the wrong battery anyway, I decided to buy new. Bought new battery (Duralast), charged to FULL with Auto-Charger, installed and started car. Car was run for approximately 5 minutes and then was turned off - immediate restart was tried but the new battery was completely drained. When the battery is recharged with charger, the car starts and runs fine, but the battery is drained again.

There is no drainage of the battery when the car has been sitting and not running. This drain only occurs with the car running. The GEN light comes on with key up, but goes off after start and never comes on during run.

I'm going to get some voltage readings and check my grounds and such ASAP. The battery cables/terminals were cleaned and correctly tightned upon install.