This is an awesomely cheezy, but remarkably informative video showing every step of the process of RC lipo battery manufacture and testing. It’s done by Revolectrix, an RC battery company I hadn’t heard of before, but with a site here. Revoletctrix. It looks like they ship out of Singapore, but have A123 cells in the “US Store” – a quick check looks like their prices aren’t much of a bargain, but, like I said, I really don’t know much about them.
Caution: If you don’t want your brain to be infiltrated by a catchy, two-finger-on-the-keyboard-with-precussh soundtrack, turn your sound off now. But then you’d miss the awesome commentary explanation bit. Seriously, who needs production values when you have truly interesting content? Seriously.