Mi 20000mAh Powerbank review | XIAOMI

We have 2 of this in the office which we usually take it around outstation for work (usually 3-7 days away from the office) as most of our camera gear can be charged via micro USB. It comes in all white glossy finish with a dotted texture on both side for easier grip. There is 4 step level indicator and I wished it came with a LED light.

The input port is fast charging compatible with any brands, it supports 5V which we gotten at 1.98A max (rated 2A), 9V at 2A rated and 12V which we gotten at 1.71A higher than the rated 1.5A. Very good, faster input charging is highly appreciated . For the 2 output port sadly is limited to 5V 2.15A each when both combine is 3.5Amax (rated 3.6A).

The rated capacity is 20,000mAh (72Wh 3.6V)

The total input received is 14,454mAh at 5V (72.27Wh), converting to 3.6V equivalent is 20,075mAh
The total output charge is 10,418mAh at 5V (52.09Wh), converting to 3.6V equivalent is 14,469mAh

Based on total output against total input the actual conversion charge received is 72.07%. I set 75% as a minimum requirement but again, 72% is good as its not an easy feat to charge and store that big amount of juice. It can charge Iphone 6 around 8.6 times.  I can live with the 5V 2.15A output since this would power mainly my camera gear, finally a good powerbank by Mi.


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