I bought the first generation 12V LI Ridgid drills in 2006. Batteries were replaced under LSA. Had one other battery fail, also replaced under LSA. I used these drills in my business, so most received a years worth of hobbiest use in a month. As for Dewalt tools, only own a few. 610 router (1999) that has never been used except on a dado jig building cubbies for local "Y's". Second 610 in case first failed (it hasn't). Dewalt circular saw, which used to be the B&D Super Sawcat. Two 12" miter saws, and two 10" miter saws. You ask why two of each? Simple one for each end of the board. And a Dewalt angle grinder, which is a B&D industrial tool with a different paint scheme. Finally a few Dewalt 10" saw blades.