DieHard Platinum AGM Battery : H6 Group Size, 760 CCA, 950 CA, 120 Minute Reserve Capacity

2019 VW Tiguan needed a replacement battery. Dealer wanted $500+ for battery and install (for a standard flooded battery - I upgraded to an AGM whih VW actually now recommends due to the start/stop feature). The reason most prople end up going to the dealer is that the battery needs to be "registered" in the car. This tells the car what kind of battery it is, and most importantly, the age of the battery (new). Modern cars (at least VW and BMW) have "smart charging" that changes the charging profile as it ages to extend battery life. That's what the big install charge comes from at the dealership. Advance Auto Parts is the ONLY parts dealer that has the equipment to register a new battery in your car. The problem is that most don't know it. After calling several stores, I finally found one in Ypsilanti, MI that would listen to me, and take a look at the test equipment given them by Advance Auto to terst batteries. Sure enough, it has the feature for registering the battery. And, even thought they had never done it before, they were willing to look at the instructions and figure it out (it was pretty simple). So kudos to the local store manager on duty. Less happy with Advance Auto corporate that has a great idea, hands out equipment to provide an important service, then does not provide any training or even a notification that the local shops are supposed to offer this. Anyway, no charge for the installation or registering so I got a new battery for about half the cost of taking to the dealer.

My first one had an internal failure at four months and could barely start my car on a full charge. Manufactured November 2025, failed March 2026. I got a one time free exchange in store. I struggled a little with the manager in order to get the replacement since the battery load testing device they use said my battery was good but needed to be charged. But I was just driving the car and I knew my alternator was working so it was as charged as it was going to get. She said the other option was to leave the battery at the store for them to charge for hours and check again later. But then I have no car. I ultimately had to prove my alternator was working properly using my own voltage readout while the car was running. Then I was given a replacement. Hopefully that was just a manufacturing issue and my second one lasts. You only get one replacement, even if your replacement fails.