This is a new KMASHI 10,000mAh external battery for charging 5V USB devices (like a phone or tablet). I received it yesterday (6/29), and today I actually got another battery pack for free, so I am selling this one. All I have done so far is unbox it and charge it fully, so it hasn't experienced a discharge yet, and it is completely charged.
It has 2A charging capabilities (as long as your adapter can support it), and it can charge other devices at either 1A or 2.1A, depending on which discharge port is used.
You can find plenty of reviews of it online, and you can also find it on Amazon here: http://www.amazon.com/gp/product/B00JM59JPG?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00
Since it is brand new and I have all the original materials, I would like to sell it for the same price at which I bought it. Currently, it is $14. Feel free to send in other offers.
Please do not message this poster about other commercial services.
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