Just thought that I'd post these because I find his videos easy to understand and I also thought that it could help some people fairly new to electronics wondering how they're going to power the raspi. I'm thinking about buying rechargeable NiMH batteries to power mine.
My two only other questions are, Can I power a Raspi model B,small usb hub,keyboard,mouse, and a micro wireless dongle off batteries? Or will I need more amperage?
Can more supplying a little more voltage,(unregulated) (say 5.5v-6v dc) be enough to seriously damage something?
And if you want to learn about adjustable voltage regulators, you can check this video out.