Power Bank 20000mAh Large Capacity Powerbank 30000mAh Portable Phone Charger PD22.5w Two-way Type C Fast Charge PC Fireproof
58.77 34.12 $
Hello customers from Korea,
For smooth customs clearance, customers from Korea who buy power bank,
please leave your Clearance Code(P+12 digits, such as P123456789235) when you place the order.
Do not worry that we will not disclose your information.
Sorry for inconvenience.
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 6200mah/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 6200mAh.
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
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|Location||*Estimated Shipping Time|
|United States||10-30 Business days|
|Canada, Europe||10-30 Business days|
|Australia, New Zealand||10-30 Business days|
|Central & South America||15-30 Business days|
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