Tom.F.1

iTrader: (1)

Got a new Optima YellowTop 34 last August. I put my 06 SS in the garage for the winter on December 1st. The plan was to run it ever few weeks. After 3 weeks it started just fine. Stereo worked great! One week later it was dead. I figured the stereo was drawing power so i disconnected the main fuse. I made sure it was fully charged. Again 2 weeks later it was dead. Now it won't even last 1 week. There shouldn't be anything drawing power but the alarm. Does OnStar draw power when the car is off?
Has anyone else had a problem with a yellowTop? Should I take it back? Will they exchange it? It came from Costco.
Any input would be appriciated. Getting out the booster cables every 2 weeks is a pain.

JohnVroom

batteries been compromised sounds like it got down to 9 volts?

once you've killed it a couple times its deep cycle capacity decreases

yes something is killing it ...the alarm is part of it, any microprocessor devices in the car is also part of it

C-Bass

Take it back under warranty

Those batteries should have at least a 3-4 year warranty from Costco directly.

Even with minimal current draw (onstar or whatever) there should be no way it would kill the battery in a week.

kevmurray

You say the first time you tried was after 3 weeks and it started fine. Now it wont hold a charge for two weeks. Have you checked the current draw with the engine off? Maybe something in the car is faulty? It's possible the battery is permanently affected but a new one will suffer the same fate if there is a problem.

PurrNaK

Costco has a 2 year warranty on Yellow-tops. Take a receipt though they are super strict on that.

Lorco has Yellow tops going on sale in April.

BIGEVIL

Also consider a battery tender for vehicles being stored for the winter.