Poor manufacturing tolerances - too big to properly fit within an iPod Mini.
I've replaced the battery on many iPod Minis. This battery simply cannot fit within the Mini. It is physically too large in the area where the wires come out of the battery, and therefore cannot fit into the recess between the drive and the the logic board's power connector. I found no reasonable way to modify the battery or the iPod to get it to fit. My only reasonable course of action was to order a different battery that was made properly.
Therefore, I discourage attempting to install this battery in the iPod Mini, unless or until the manufacturer or retailer clearly addresses the problem.
Verified purchase: YesCondition: New