Not too shabby, but when it comes to electronics, and batteries specifically, I get kinda leery of eBay. I've had good experiences and one or two pretty bad experiences. This time, I'm going to go with Multibiker's idea. Thanks anyway
Originally Posted by jeff-o
OK, I found a 12V battery pack:
http://cgi.ebay.com/ws/eBayISAPI.dll...35970&tc=photo
It features a selectable voltage output, I wonder if that could work as a basic lamp dimmer?
Also, that 9V 5400mAh battery that I use is a little beefier than I thought, it weighs 13.5 ounces (380g).