Very useful for troubleshooting.

Very useful for troubleshooting.

TeckNet® PowerZen S1 Mini External Battery 3000 mAh Portable Ultra-Compact equipped with the Bluetek ™ technology for Apple iPhone 5s 6 5, Galaxy S4 S5 Note 3 Note 4, Nexus 4, HTC One M8 and Other Smartphones (phones or tablets are not included) (Wireless Phone Accessory)
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Customer Review

Good value for money. Do not charge the battery at 100% but about 80% is already very good for troubleshooting. And the flashlight is very useful and it shines very well against small by design problem, please double click the button to turn it on and make two double-click to turn it off, it's a little complicated at times. But it's still very useful.

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