This does not do Fast Charging!

For my Samsung Galaxy S21 Ultra, it says it would take around 1.5 hours to charge to full from 25%. For true fast charging it should take around half the time.

Faster than the older standard versions of charging capabilities, but it is not FAST in today's standards.

It does however have a maximum capacity of 10,000 mAH, which is even higher than OtterBox's brand new model.

It is used, so likely won't reach that full 10,000 capacity. And it has some minor scratches.

It DOES NOT have USB-C. So you will need to charge the battery with self-provided micro USB and output to your phone/device with a USB to whatever your device needs.

Returns accepted - Buyer pays return shipping.

Will ship ASAP, once payment is received.

Thanks!

-Brendankq1