3000mAh Rechargeable External Battery Pack with Cellphone Adapters (Blue)

Pros: It is best external battery I ever seen. Build quality and design is great, very useful case and retractable cable, and set of different plugs.
Anyway, what is more importrant, it charges!
My Desire HD (1300 mA battery) was charged first time for 100%, and second time for 50% until External battery become empty, which is much more, than result of any other external batteries I used before

Cons: My Nokia refused to charge with this battery (
Probably, current provided by this battery was too high...

Other: Awesome external energy storage for your pda or phone, however, it is better to make sure it is compatible with your device...

Pros: -Amazing build quality of the battery itself
-Very neat carrying case
-Compact
-Efficient
-Cheapest high rating battery I found!

Cons: -Doesn't really charge at 1A. More like 500~800mA. Still very useful
-The adapters that come with the battery are of crapyy build quality. After one week mine stopped working and a week after my friends' stopped too. I still use the normal cable my phone came with

Other: Great product! Compact, efficient and cheap!

Pros: Internal 1S 3ah lithium battery is of a nice capacity and good low weight. The unit is sturdy and well built, the LED's indicating charge status are a nice addition.
Charges off USB, charges to USB. Great idea!

Cons: None that I've found yet. I use the Micro USB and the connector is well made.

Other: Worthwhile grabbing one - I am sure I will find more uses for mine. Definitely a better option than a second battery for your phone too - no opening up the phone every time you need a charge! Also you could couple this with any of the USB gizmos on DX for truly portable fun!!