I've got an oldish D820 that's got a 100% dead battery.
I know that I could, in theory, take it apart and replace bad cells in the battery. I'm not really comfortable with doing that.
I also know that there are various places that sell replacement batteries for 20% to 80% of the cost that Dell would charge.
Does anyone have any experiences with buying more than a couple of these off-brand batteries? If a battery goes boom, it could be really ugly, so I'd rather not risk it, but at the same time, the dell batteries are really expensive...
Any opinions on these ebay / off-brand battery vendors?