Only experience i have is with one of their cordless lithium ion drills. The one I have is a 10.8 volt. It's nice, lightweight, came with two batteries. If I had to buy another, I would just step up to one with a bit more power. I've had the drill for 2 years without any issues, both batteries get rotated for equal use, batteries seem to last as long as they did the day I bought it. I was able to drywall the ceiling in a fairly large garage with 1 battery swap.