TOPK I2006P PD 20W Power Bank 20000mAh Portable Charging Poverbank Mobile Phone External Battery Charger Powerbank 20000 mAh
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product name: Portable Power Bank
Type 4: PowerBank/External Battery Pack/Portable Charger
Type 3: PD QC 20000mAh Power Bank supports PD 20W Quick Charging
Type: Portable Power Bank
Support Quick Charge Technology: No
Shell Material: Metal
Output Interface: USB-A,USB-Type C
Origin: Mainland China
Maximum output: PD 20W
Max Input: 18W
Input Interface: Micro USB,USB Type C
Features: Digital display
Feature 4: bateria externa/bateria power bank/batterie portable
Feature 3: power bank 20000mah/batterie externe/portable charger
Feature 2: Fast Charging
Feature 1: Aluminum alloy shell material
Compatible brands: Power Bank for iPhone Xiaomi Samsung Huawei
Color: Navy / Green
Brand Name: TOPK
Battery Type: Li-polymer Battery
Please Note :
Dear friends 1.Please try to choose Ships From Poland ,SPAIN or France, So that you can received the package more quickly~ 2.The Power bank The labeled core capacity is 20000mah/3.7V , the rated capacity is13000mah/5V.
3.We offer two kind programs for you, you can choose according to your needs. ①:PD power bank【Fast Charging QC3.0】 (Orange) ②:Power bank【Ordinary Charging 5V/2.1A(Green）
Q: Power bank has two regular standard of capacity , one is the battery capacity, one is the rated capacity. The 20000mah power bank, being labeled 20000mah/3.7v core capacity be converted to rated capacity 13000mah/5v. Why exist this happening?
A: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 20,000mAh power bank can really be used by us only about 13000mAh.
This link has 2 different models, please choose according to your needs, do not buy the wrong product.
For Netherlands customers,
If you need to buy a power bank, please choose to buy from Poland warehouse for faster shipping.
If you choose to buy from China warehouse, please provide the email address due to the new regulations.