[Galaxy S III Accessories] sekigah84:
Anker® 10000mAh Dual 2A USB Output External Battery Backup and Charger Review

Huge Capacity, 10000mAh / 3.7V

1 full charge for iPad / iPad 2 / Samsung Galaxy Tablets

600%+ to most mobile phones' battery life

Portable & stylish design; Easily fits into your bag to provide instant power

Reliable Lithium Polymer battery ensures high quality; 500+ recharge cycles over the life of the battery

2 USB ports with 2A output provide instant power for fast dual charge

2 voltage options of 9V and 12V for your SLR camera and netbook charging needs

LED indicates charge level

Output: 2 * USB 5V 2A (dual charge @ 2A Max), DC 9V / 12V 2A

Input: 12V 1A

Adapter Input: 100V - 240V

Package includes: Anker External Battery / 12 connectors for most phones / 6 laptop connectors / 1 AC adapter / 1 DC cable / 1 USB cable

I'd like to thank the great folks over at LaptopMate for sending this review unit to me. You guys are awesome!

The reason why I am reviewing this unit is mainly due to its dual charge USB port. I have a Galaxy S3 along with a Nexus 7 and a netbook. I was curious as to whether or not this battery could charge all devices at the same time and how fast it can charge. Below is my review:

Design:

The Anker 10,000mAh battery is very stylish and functional. Out of all the modular batteries I have used, this one of the more sexy looking battery packs. This is a definitely a battery pack for your bag. I would not recommend putting this bad boy in your pocket. It is fairly heavy and bulky and I do wish the battery pack was a little smaller and lighter but for a 10,000 mAh battery pack that can charge everything I need I can't really complain.

Functions:

The battery pack offers dual USB ports capable of 2A at 5V (meaning it will charge the iPad2 and all tablets) and DC output of 9V or 12V at 2A for laptops. You can switch between the different output voltages with a flip of the switch on the side. A center power button to turn on the battery to start pumping juice to your devices also turns on the LED indicator lights which tell you how much charge you have in your new stylish power brick. The ports are all located at the bottom of the unit.

Charge Results:

This battery pack had no issue charging my Galaxy S3 from dead to full. It is not as fast as a wall charger and no battery pack is. It did the job with plenty of juice left to spare. I charged two Galaxy S3's at the same time as well from dead to full and it took a little longer than it did with just one but charged them both with a little more than 50% of the battery pack left. It charged about 30% in an hour for one Galaxy S3 and about 25% for two Galaxy S3's

Moving onto the Nexus 7. The Nexus 7 charged but slowly. It was at about 18% or so per hour depending on whether or not I used it. It's good for emergency power but not efficient to charge to full in a reasonable amount of time.

I will be doing a stress test on this battery later. Slapping on two drained Galaxy S3's, a drained Nexus 7, and an Asus Laptop also drained and seeing how it deals with the draw.

Final Thoughts:

While I can't comment on the stress test yet, this is a great solution for me. I travel a lot and need juice on the go and most of the time I can't get to an outlet. Considering I always need juice for my phone having 4 or so extra charges is a lifesaver. The fact that it can also charge my Nexus 7 while charging my phone is also a huge plus since I do need my fix of movies on long trips.

Overall, I am very satisfied in the performance of the battery pack. It is bulky and it is heavy but its not meant to be a slim solution. It's mean to pack a lot of juice to power all the things you need and it does just that.

Once I am done with the stress test, I'll post up the results and comment on it. But so far, I definitely recommend this for anyone who needs juice and lots of it!