1900mAh USB Rechargeable External Battery for iPhone 4 (Black)

Pros: - Cheep, in cost only. The biggest pro of this battery pack is the price. This is probably the cheapest option on DX to charge your iphone and in my opinion also the best.
- Works with any iPhone. I have tested this charger with several different iPhones and found that it works perfect with the iPhone 3G, 3GS and even the iPhone 4. Although I didn't test it on the 2G it should work as the 3G and 2G are identical except for the GPS and 3G chips.
-It charges the iPhone 3GS and 4. This is a major pro as many chargers don't charge these phones as they need a higher MA rating.
- Has an indicator to show when its fully charged, and lights to show how much capacity is left as it is charging your phone.
- In my tests it was able to fully recharge an iPhone 3GS from 3% to 100%. After that the battery pack promptly died. It also was able to recharge an iPhone 4 most of the way from around 20% to 100%.
-Build quality is good and the charger pack seems stable.

Cons: - The dock connector on the bottom of the battery pack is for recharging the pack only. It doesn't work as a passthrough for USB syncing or charging with the battery pack plugged into the phone.
- It doesn't come with any kind of charger or ipod cable. You have to use your existing charger and cable from your phone to charge the battery pack.

Other: Overall I'd say this is probably one of the best iPhone/iPod battery packs currently on DX. Not only is it a good price, but it functions great and its battery is of good quality. Add the fact that it can recharge the iPhone 4 and 3GS and its great. This charger comes in super handy when you find your phone without power and your away from an outlet or you are in an area without power. A must have for any iPhone/iPod owner.

Pros: -It works with the Iphone 4 -It seems to be decently built. -Large capacity but not as high as advertised

Cons: -larger than expected, but not to large -Doesn't completely charge my phone from empty, but that was expected. -capacity is lower than advertised

Other: Worth the money. Works great. Would recommend.

Pros: this product charges the iphone 4,3gs, ipod touch 4th gen with no problems and works very smoothly! no complains about this product and definitely recommended to all who considers purchases a portable charger

Cons: i thought this would be compatible with all idevices using the same port, guess i was wrong, i could not get this to work on my ipod touch 3rd gen at all.

Other: bottomline, very worthwhile product to consider if you want a portable charger for your iphone4,3gs, ipod touch 4th gen. value for money!

Pros: Cheep, in cost only. The biggest pro of this battery pack is the price. This is probably the cheapest option on DX to charge your iphone and in my opinion also the best. - Works with any iPhone. I have tested this charger with several different iPhones and found that it works perfect with the iPhone 3G, 3GS and even the iPhone 4. Although I didn't test it on the 2G it should work as the 3G and 2G are identical except for the GPS and 3G chips. -It charges the iPhone 3GS and 4. This is a major pro as many chargers don't charge these phones as they need a higher MA rating. - Has an indicator to show when its fully charged, and lights to show how much capacity is left as it is charging your phone. - In my tests it was able to fully recharge an iPhone 3GS from 3% to 100%. After that the battery pack promptly died. It also was able to recharge an iPhone 4 most of the way from around 20% to 100%. -Build quality is good and the charger pack seems stable.

Cons: it is good but the delivery timing too long... ordered on 5/10 and i received on 5/11... it took one month to arrive

Other: will buy again

Pros: CHARGES ANYTHING -IPOD -IPHONE ALL GENERATIONS INCLUDING IPHONE 4 GOOD QUALITY WHEN COMPARTED TO OTHERS

Cons: THEY SHOULD HAVE GIVEN IT WITHOUT THE USB CABLE SO IT BECOMES MORE CHEAPER TOOK 1 MONTH TO ARRIVE. IF YOU ORDER THIS, PLEASE ALOOW ONE MONTH FOR IT TO ARRIVE. THIS ITEM TKAES TIME AT HONG KONG POST OFFICE FOR SECURITY CHECKING AS IT IS AN ELECTRONICS ITEM.

Other: WILL BUY MORE

Pros: Good build quality Small and easy to keep in pocket Works with iPhone 4 LED's show battery strength

Cons: Will not fully charge an iPhone 4 Will not work when case is on iPhone 4 (even when access port) When directly attached to the iPhone there is a danger of it snapping off damaging the iPhone port. Best used with a extension cable or in a static position.

Other: A great buy and a bargain for the price.

Pros: -It does charge any ipod and iphone all version which use same plug. -Buid quality is good. -Battery hold up to 5 days without single drop (this is what i test after 3 used and recharged)

Cons: -Not sure it is 1900 mAH but it does charge iphone 4 from 29% to full (battery still remain 2 dots) -Charge is slow, not sure it will gain any battery level if you use your device and charging as same time.

Other: Just buy it

Pros: I was able to charge my bf's iPhone the moment it arrived and no need to charge the batt before hand. It could charge up to 80% at least and it was good enough for a external and cheap battery.

Cons: It is abit bulky and do not know where to put yr phone when it is charging outside. Other than that, no issue at all.

Other: It maybe bulky to charge with yr iphone but it is really useful and cheap. In Singapore, this battery could easily sell for SGD $30 to $50 and I got it only for SGD $12 to $15. BUY IT! Recommended by me!

Pros: a button for u to press n hold tat shows battery remaining levels Charges my ipod full n still left with half power Can charge my iphone4 up to 80%!! This particular model comes with a cap tat protects e metal charging part tat u insert into ur phone charging port.

Cons: cap tat covers e metal chaging part comes off when it moves around in my handbag, but tat din matter to me as i can just slot it into a pocket in e bag so it stays on firmly n doesnt scratch any of my other items!

Other: Ease of use n i nvr have to worry about my iphone going low batt!! Enjoy e apps with no worries!!

Pros: It charges my iPhone4 from about 25% to 100%, or in worst case from 5% to 70%. Really usefull when you are in trips or excursions, like on Theme Park's. You can charge the Baterry and the phone togheter if you want.

Cons: The cabe that came with the product is a very poor quality cabe. The cover goes off very easily.

Other: I recommend this product. If you need it, you won't regret. I bought two, for me and my wife.