We use them for field work in vans, so having different battery sets really *****. We convert the entire vehicle over to whatever tool set we have to use. The single tool that controls all of this is a 90 degree impact for tight quarters and Ridgid had the only one after the Makita started getting old and we couldn't get parts. So now we have full Ridgid sets with Circular Saws, Hammer Drills, Saws-Alls, and Screw Guns. One last van to convert over from Dewalt and then all vehicles can share equipment at job-sites. Works better when tools interchange. I dislike our disposable society and try to recycle whenever possible. At least the batteries can be turned in. My post was a shot in the dark, thanks for the help.