RavPower Dynamo On the Go Power Bank Review 10400mAh (RP-PB07W)
Phone Battery Drains Too Fast? You Need This Gadget
Buy it at Amazon: RavPower Dynamo Power Bank [Affiliate Link]
Takeaway: Easy to use, charges quickly. A great travel accessory to keep your devices powered while you're on the go.
If your phone battery is always dying in the middle of the day, check out RavPower's Dynamo On the Go Power Bank (model #RP-PB07W).
Charges in about 2.5 hours with a 10400 mAh capacity; enough to charge my phone up about 4 times. It also shuts off by itself when it's done charging. Compact, lightweight and comes with a carrying case and two short charging microUSB cables.
Buy it at Amazon: RavPower Dynamo Power Bank [Affiliate Link]