I started buying new cordless fromDewalt about five years ago for my business. As was mentioned earlier, once you start with one brand you pretty much gotta stick with it to avoid toting several batteries and chargers. With that said I did acquire a Milwaukee 18 volt set drill and nut driver when we moved into a different house just for home use and I wish I would have gone red from the beginning. The shelf life of the batteries is the best I’ve seen. My Dewalt batteries never seem to hold on very long and always disappoint right in the middle of doing something. I did pick up the 20v it 18v adapter is it get a little better between the two sizes.