MrD

The +14V across the battery when running means that the charging system is functioning fine. What you'd really need to do is measure the voltage across the battery when it is disconnected (the open circuit voltage).

 

Moot point now with a new battery. I bet you'll be fine now.

Old battery was 6.5 volts.

MrD

Look at the vehicle and find the build date. I assume you bought it new. Determine how long it sat before purchase. There is a good chance you are in the same boat I was. My battery had almost six months of sitting around with the radio and security system nibbling away on the battery before I purchased it. That scenario is really bad for the life of a lead acid battery.

 

I replaced mine and have had no problems since.

 

A Suby dealer should replace it under warranty, but I just went to Costco and bought another. The time it would have taken going to the dealer and let them screw around with it wasn't worth the $50 I spent for the new battery.

Agreed. I replaced my battery today, we'll see how it goes. The battery I replaced it with has 50% more CCA than the OEM battery. I tested the voltage across the terminals while the car was running and it is at 14+V which seems to be accurate.

I did not look for a parasitic current though... too much trouble, plus I did not want to pull 50A fuses.

Let me say though replacing this battery was much more painful compared to previous vehicles I have owned

-MrD

Crap. I have the same problem with my car 2006 LGT 5MT starting this morning. The car would not start the battery was stone cold dead. I did not drive it for 3-4 days. I jumped it with my wife's car and it started fine, I took it around the block for 15 minutes and the car started again after I turned it off.

Tonight I tried to start the car and the battery was stone cold dead again.

-MrD