FERISING Slim Mini Power Bank 5000mAh Portable PowerBank 5000 mAh USB Typc C PoverBank External Battery Charger For Xiaomi Banks
Package Details:
FERISING 5000mah Powerbank*1+ Micro USB Cable*1+ Retail package Box*1
Features :
Model: FLS-PB-C0513
Capacity : 5000mA/3.7V/18.5Wh
Output 1 USB : 5V 2.1A
Output 2 Type C : 5V 2.1A
Input 1 for Micro USB: 5V 2A
Input 2 for Type- C: 5V 2A
Specifications :
Size: 97.1*64.1*13.5MM
Color: Black/White
Weight: About 111g
Please NOTE :
Power bank has two regular standard of capacity , one is the battery capacity, one is the rated capacity. The 5000mah power bank, being labeled 5000mah/3.7V core capacity be converted to rated capacity 3321mah/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 3.75V/5V=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 5000mAh power bank can really be used by us only about 3321mAh.
Also, The conversion rate of the entire mobile power industry is basically in the range of 60%-70%.
Please kindly noted. Please search on Google if want to know the details
FERISING Mini Power Bank 5000mAh Portable Charging PowerBank 5000 mAh USB Typc C PoverBank External Battery Charger For Xiaomi
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