12-31-2022,
I have a couple of the 6 Amp M12 batteries, you'll like them. I have the milwaukee under car light (the one that looks like the PIXAR lamp if ever watched something like toy story lol) and on a full charge with the light set on max brightness will run that light for almost 8+ hrs or so before it starts flashing because the battery is getting low. They're great little batteries.