Top critical review
One person found this helpful
Surprised and disappointed
on 20 June 2016
I've had a TeckNet power bank before. It is at least 6 years old and still works although not as well as it was when it was new. So when it was time to replace the old and tired one, I wanted another one of the same brand.
I've used it twice on my Sony Xperia Z2 and the same thing happened both times. It drained the phone battery instead of charging it and the phone became very hot. After the first time I took the phone in for repairs because I assumed the phone had a problem. The repair shop inserted a new internal battery. A few weeks later I connected the phone to this device again and the same thing happened. Battery drained from 48% down to 3% and a very hot phone. I'm not going to use it again.