Power Bank 20000mAh USB C Portable Charger

Power Bank 20000mAh USB The labeled core capacity is 20000mah/3.7V , the rated capacity is 13600mah/5V. Power Bank 20000mAh USB 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. Power Bank 20000mAh USB 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. Power Bank 20000mAh USB 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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Power Bank 20000mAh USB THIS IS NOT A MONTHLY SUBSCRIPTION ITS A ONE TIME PAYMENT OFFER NO SURPRISES AT CHECKOUT!

Power Bank 20000mAh USB ** Please note the due to high orders of our products, the approximately delivery is between 8 and 20 business days.