Mini 2800mAh Emergency Battery Pack for iPhone 4 / 4S / iPod - White

Pros: works perfectly. can charge up to 2 full charges on iphone 4. i bought 2 of these one for my mom too.

Cons: cant tell how much battery is left in it, but just have it fulled charged and it's fine. plus there's no cover to protect the part where it charges so feel like it could get damaged.

Other: for the price, you cant beat it. a bit cautious at first but turned out to be a great product.

Pros: It has a good price, it charges like a normal charger, not faster not slower. It can be very userful when travelling long distances without having any power supplies. It also has lights to indicate its battery level, its state (charging or discarging). It also comes with microUsb cable to charge it.

Cons: You can not use it with some protectivecases because the connecter won't fit properly. It's lights will go on but the iPhone won't charge. So I have to remove my case each time I use it For 2800mah I was expecting some more autonomy. I made one recharge from 38% to 100% than I put it again when my battery was 19%. At 29% it died. So I believe it can charge once your phone from 10% to 100% but not more. His capacity is twice the Iphone's battery (1400mah), I was expecting something more.

Other: For about 10$ it worths the money. It doesn't seem to cause any trouble, it is not getting hot.

Pros: Great product. It seems sturdy and good quality. My iPhone 4s is recharged in almost all. Very useful. Useful tool to recharge your iPhone wireless, and out of home!! With this product, you may use your phone when the battery is near to die. Only plug it in your iPhone / iPod. Recomended!!!

Cons: It would be appropriate a cover for the connector to protect this. The wire to charge it should be the same to the iPhone. In this case, with only one wire we can recharge the iPhone and the supply battery. The wire is a normal micro-usb.

Other: A great product with a low price.

Pros: You never run out of battery, you can even leave you phone charging inside you purse, or on a table at a party. Its not heavy and it really saves you when you are out of your house for many hours at a time. Perfect for long bus trips, or charging mini boosts!

Cons: In proportion to hte Iphone it is a little big, so using the phone while charging gets unconfortable. It also takes a lot to charge itself.

Other: Worth it.