I have Rock Band drums that take 3 AA batteries and I don't want to waste batteries. Is there a way to make something that plugs into the wall and connects to the battery sockets (1.5 volt)?
I assume there's no external power connector on your drums (bad design in my opinion). There are some products in the market that do what you say, but they are specially made for specific devices such as professional flashes and cameras. The problem is that each battery compartment is different, and you also have a problem with the door. I think you're way better off by getting a good set of rechargeable batteries and a wall charger. Buy brand (Energizer, Sanyo, etc), you'll save money in the long run.
