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KUULAA Power Bank 10000mAh Portable Charging PowerBank 10000 mAh USB PoverBank External Battery Charger For Xiaomi Mi 9 8 iPhone
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SPECIFICATIONS
Type: Portable Power Bank
Support Quick Charge Technology: No
Shell Material: Plastic
Output Interface: Double USB
Origin: CN(Origin)
Max Input: 10W
Input Interface: USB Type C
Features: Digital display
Feature 8: external battery telephone, battery pack for phone, battery bank
Feature 7: portable charger for mobile phone, powebank, power pack
Feature 6: power bank for phone, power bank 10000 mah, portable external battery
Feature 5: portable power bank, small powerbank, portable phone battery charger
Feature 4: powerbank 10000mah, power banks, power bank 10000, usb bank
Feature 3: mobile battery, powerbank 10000, portable charger for cell phones
Feature 2: portable charging, pover bank, power bank 10000mAh, mini power bank
Feature 1: power bank, powerbank, poverbank, portable charger, portable battery
Compatible Cellphone:: For iPhone Xiaomi mi Sony HTC LG Samsung Power Bank
Color: Black White
Certification: CE
Brand Name: kuulaa
Battery Type: Li-polymer Battery
Please NOTE :
Power bank has two regular standard of capacity , one is the battery capacity, one is the rated capacity. The 10000mah power bank, being labeled 10000mah/3.7v core capacity be converted to rated capacity 6500mah/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 10,000mAh power bank can really be used by us only about 6500mAh.
Also, The conversion rate of the entire mobile power industry is basically in the range of 60%-70%. Please kindly noted.
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