I've had my Andida for a few weeks now - absolutely spectacular battery. I ordered it from Amazon for $14 or something, came in the mail pretty quickly, and it fits in the phone perfectly. I did 3 or 4 full charge cycles and I've been getting great results. I could barely get 7-8 hours out of my original battery with very little usage. Minimal usage with the Andida can easily put it past 50/60+ hours. As of right now, I've got 73% left after 10 hours of light to medium use.
It's also important to note that overheating has never been an issue.
It's also important to note that overheating has never been an issue.