Computer,Music,Books

Energizer AP650MC Micro-USB Portable Charger -Black

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Product Features:

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Technical Details:

Power Save Mode: Holds charge for 6 months

Rechargeable 500 times

Attachable Key Ring

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Customer Reviews:

It adds about 15% to my Galaxy S2 smartphone

I bought this unit at Target for about $21. I uploaded pictures of my unit to Amazon and it is different look as original picture posted on this site. The unit is light weight and very small. The package said it contains 500 mAh lithium polymer pack inside. I bought this package because I was in the emergency and needed my phone to work for extra 1hr. The package said the unit is pre-charged and ready to use, however I think the unit had about 20% of juice after unpack it. It charged maybe just 2~3% and it was very disappointing.
After I return to my home, I charged the unit. It took about 2hrs to fully charge the unit. After that, I charged my phone again and see how much it can charge my unit. My cell phone (AT&T Samsung Galaxy S2) had 64% battery when I started and after I plugged this unit, it charged to 80%. So this unit can add about 15% from fully charged.
It is good buy for insurance purpose such as emergency phone call, however if you are thinking about buying this unit for backup battery, I think this unit is not powerful enough to make your phone alive for smartphone applications.
For Samsung Galaxy S2, you can buy 3500 mAh extended battery pack at sub $8 on ebay so maybe this is a better choice.

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