Just brainstorming here...got an idea, but I'm not yet smart enough...bummer. I use box mods, as do a lot of people here. One thing I always try to do is make a charging port in my boxes, that way I don't have to open the box, remove the batteries, change/charged the batteries, and put it back together. I've seen the charging mats for cell phones. Anybody here ever try something like this on a box mod (naturally, you would probably want to stick to devices using NiMh batteries) or maybe have the knowledge of methods, or even web sites to visit to learn how this might possibly be accomplished? Simply laying your box on a charging mat would simply be the ultimate!