By Andrew Liszewski
It’s not going to provide all of your power needs during a major outage, but in a pinch I’m sure this compact, rechargeable 1,000mAh backup battery will come in quite handy if your cellphone or MP3 player is on the verge of conking out, and you have no access to an outlet. Now claiming this thing is keychain-sized is a bit of a stretch, you can’t just slap a metal ring on any old thing and expect people to cram it in their pockets. But it is compact enough to stash in a carry-on bag, glove compartment or murse if you think your devices won’t last as long as you need them to.
In terms of size it looks pretty comparable to Duracell’s Instant USB Charger that I reviewed last October and deemed a must-have accessory, but at just $19.99 this alternative from ThinkGeek is actually $10 cheaper. And it comes with everything you’ll need including USB cables and charging tips for Nokia, Samsung, SE and Blackberry phones.