I gave up on battery powered tools years ago when my last battery started to smoke very heavily. I think the battery was about to catch on fire and if it had, the flames may have spread to the wall cabinets and burned down the house. That was years ago and the old B&D corded drill I bought many decades ago still works. I could buy a much better corded drill for far less then the cost of a new battery, much less the 3-4 batteries I would need to power all of my battery powered tools. Getting out the extension cord is a PITA at times but sure is cheap and not likely to fail in my lifetime unlike the known failure of the batteries.
I am about to replace two UPS batteries by going to Batteries Plus. I bought a battery from them a few years ago and it has lasted a good long time. The batteries I am replacing were originals in the UPS. We have four UPSes to protect a PC, network, monitor, and TV.
Later,
Dan