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20000mAh USB C Portable Fast Charging Power Bank For iPhone 12 11 Pro Xiaomi mi9

2 Easy payments of $72.00 $36.00

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SKU: 4000412038565 Categories: ,
Description

Please NOTE :

The labeled core capacity is 20000mah/3.7V , the rated capacity is 13600mah/5V.

Why exist this difference?

The most important reason is the conversion rate. Because most of power bank’s battery voltage is 3.7V, and power bank needs to increase
the voltage to 5V when charging the mobile phone, which making the power bank’s conversion efficiency only 3.75/5=74%, Also include
generated heat when battery
voltage boosting, and various of wire consumption, Electricity and self-consumption. these points add up to account for 30%-40%
of the power of the mobile power source.
So the 20,000mAh power bank can really be used by us only about 13600mAh.

Also, The conversion rate of the entire mobile power industry is basically in the range of 60%-70%. Please kindly noted.

Additional Information
Shipping

Color

Power Bank Material

Silicone

Battery Capacity

20000 mAh

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