[ZuMBLe]

Is the system that recharges the battery different than the alternator? Lately I've been struggling with a battery not holding charge over a week of having the car sitting in my garage. I want to make sure I don't have some other problem before writing off the battery and just buying a new one. What steps should I take to make sure everything is okay? My ScanMaster3 displays 13.6-14.2 volts when the car is running so I assume the alternator is doing its job. Car ran fine after the battery was recharged the first time, it restarted when stopped the same day etc. Left it for a week, ran it for about 5 min and turned it off (no driving) left it for another week and the battery was dead again.

 

[ZuMBLe]

A short? As in on the battery or some of my installed components? Wouldn't a fuse blow if there was a short?

Wow.. that charger looks great! I may have to pick one up after I get a new batt and leave it in the car.

Sounds like a short or battery is done.

Yea Autozone/Advance Auto.

 

[ZuMBLe]

The battery is a optima red top which I've had for about 4 years now.

I have a bunch of engine monitoring devices installed and also a amateur radio. All systems turn off when the ignition is turned off.

nope batterys them self can get internal shorts, which can keep them from working right, the 13.6-14.2 volts says your alt is working fine, there is a chance that you have a parasitic draw, either something being left on, or a fail component that is creating a draw that kills your battery, also do you have a optima??? cus that changes a lot

 

[ZuMBLe]

I got a Autozone Gold Series 35 battery in today.. Car starts like a champ. We'll see how it goes.