Originally Posted By: The Critic
Originally Posted By: JHZR2
Out of curiosity, how long does the car sit at any one time, and how long of a drive is your typical use?
I'd stick an ammeter in series with the battery when everything is turned off - report your parasitic draw back to us. It may provide valuable insight.
Also, how is the drive belt and tensioner? You can't move moles of electrons without providing sufficient mechanical input.
Typically if you go back to the same Walmart you bought the battery from, they will have the vehicle in the computer. You may need a receipt going to a different Walmart.
Since the beginning of September, it sees a 15 mile highway round trip every morning. During the day, it rarely sits for more than a few hours at a time. I'll check on the parasitic draw when I work on the car this Thursday.
As for the serpentine belt and tensioner, the tensioner and belt were replaced about 33,000 miles ago.
Originally Posted By: NYEngineer
I bet if you find the build date on the battery and do the math from your purchase date, that thing sat on a shelf or in a warehouse for a while in between.
The failed battery was two months old when I purchased it. I bought it in June 2007 and it was an April 2007 build. It was the freshest one that they had in-stock. This time, the replacement battery had a December 2008 build date. The stock at this Walmart was fresher because it had a TLE, so they go through a lot more batteries.
Originally Posted By: BearZDefect
Critic, doesn't the Maxx have a three year free replacement warranty?
I wonder how they test the CCA with the battery at a temperature much higher than CCA refers to.
They use a Midtronics conductance tester. I'm not sure how it works exactly, but supposedly it's the preferred method of battery testing.
The Maxx does have a three year free replacement warranty, so they confirmed the failure with their tester and swapped it out for me in the Walmart parking lot. Beware, they now require a receipt for all battery warranty claims. Good thing I had the receipt in the battery pouch.