I’m a great example of why backup iPhone batteries don’t really work. I have a stack of the things in all shapes and sizes, and yet where are they when I need them? At home in a gray felt cat house (don’t ask). I just never remember to take the things with me.
Photojojo’s new Power Boost Keychain aims to change that, putting a smallish battery pack and charing cable on a keychain. Now you’ll never leave the thing at home. Or if you do, you’ll be locked out, and you won’t be able to call a locksmith.