I also have had no issues with the battery on my Nokia 820. I had to put it in, in the store and they helped me with it. Then took it out once myself, just to make sure I remembered.
It seems like a solid little phone.
My HD7 had issues, but that was after nearly 2 years of use, and just towards the end of that. And that was with blue tooth, and recharging. But became really annoying.







