What is Power Bank Transformation Ratio

     Many people found their bought power bank is high capacity power bank, but used it to charge the cell phone, the capacity is not same as the power bank. Where are the power bank loss? What is the power bank transformation ratio? 

    Power bank transformation ratio, that is power bank transformation efficiency. Such as: a 10,000mah capacity power bank, its transformation ratio is 80% (normal power bank is more than or equal to 80% transformation ratio, also some poor quality power bank is less than 80%, more is less than 60%), it means that the fully charged power bank, its actual output is 8000mah. iPhone mobile phone battery is 1500mah, the 10000mah power bank can charge it for five or six times.

    The main factor that effort the transformation ratio is the quality, also it says the quality of power bank battery. If you want to have a high transformation ratio power bank, you need know whether its battery is good. As the requirement of power bank increased, some bad power bank supplies used secondary batteries, leading the power bank transformation ratio less than 60%, this means thier 10000mah power bank, its actual capacity is 6000mah, and the power bank is easy to age and burn out.
     Even some power bank manufacturers empty sign the power bank capactiy, only 7000mah  power bank, they marked 10000mah, which can severely affect the actual capacity and the transformation ratio.
     We Vipstech promise that all our power banks in true capacity as marked. Once faked capacity, you can send them back to us! We also offer one-year after-service.