Hi all. The story goes like this.
Yesterday, I drove to a local Walmart to see about exchanging my car battery. It was purchased at a Walmart, I believe in April, 2021, and has a sticker on it showing 2/2021. I’m not sure if that’s when it was made or went onto the Walmart sales floor or what.
Since my battery was under a one year warranty, I was told that yes, I could exchange it, and yes, one way of doing this could be to purchase a new one, then remove the old one and bring it back, and they’d reimburse me for it as long as it’s under a year old.
Today, I brought my old battery back to be reimbursed for my new battery payment (an even exchange). They would not reimburse me as I had previously been told. It didn’t matter that the negative terminal was mangled and chewed from corrosion. What they withheld yesterday was that in order to get my money back for the old battery, they would need it to fail a test in their back room. Had I known this, I would have tested the battery before removing it, and possibly never removed it, leaving my issue as is. Swapping out 50lb car batteries in a cramped space in engine bay is tricky, and makes me nervous about accidentally bumping wires or hoses and creating bigger issues.
Anyway, the removed old battery tests at the bare minimum 12.6v according to Walmart. I would like it to lose a voltage point or two, preferably without reinstalling it into my car. Is there an easy way to drain the battery a little so it will fail Walmarts test and they might follow through on their guarantee/policy?
Any help appreciated. Thank you.