Duracell Rechargeable Li-Ion Instant USB Charger (Refurbished)
Product Review (submitted on June 19, 2012):
I've suffered much frustration w my smartphone battery life. This really does help in a pinch and is a life saver at times. I keep one charged in my car so I'm rarely far from an extra charge. You need a cable that's one end usb and the other whatever ur phone uses. Mini usb comes w the device.
Would you recommend this product to a friend? Definitely yes