I need a Small Portable Charger?

What is a really good and decent sized portable charger that i can keep in my purse to charge my iphone? I want one that will tell me how much life it has too.

Added (1). send me links to buy these please

I purchased one of these last night for $4.88 at my local Wal-Mart. There are 4 indicator lights on the side of the battery pack that tell you how much life is left in the pack.
http://www.walmart.com/...d/49393757

They also have mini cables for Iphones for $9.88 or you can use your own Iphone charging cable that you currently own with this charger.

Aukey Makes Some Great Products and it has 5000 mah which means it can charge your iphone fully 2 and a half times and only $10. Http://www.amazon.com/gp/aw/d/B015E363IK/

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