Re: Battery Sizing - am I crazy?
Well Steve does hava a point. If all you care about is volts and weight, you buy a #23A twelve volt alkaline remote control battery. Twelve volts, that's all that's important. Doesn't need any of that charging equipment, and weighs only about a half ounce, too. Much lighter and smaller and cheaper than those expensive lithium-whatever batteries too.
Best of all you can carry a spare one in the remote control on your key chain! About a buck and a half at most drug and hardware stores.
He's got a point, Maine.