This charger is perfect. I carry it with me daily and when I travel so if my phone or tablet dies I can charge it. It doesn't take long to charge and it's not limited on it charging. My iPhone has gotten a full charge
This is my first portable charger, it seems to be very useful. however, Im not sure about how long this device holds this power after a certain amount of inactive use....It seems to charge fairly quickly and charges phone to full battery. As far as quality, seems to be built alright but could be more sturdy.....
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