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USB Power Bank External Battery Charger

USB Power Bank External Battery Charger

Power Bank 10000mAh Portable Charging Power Bank 10000 mAh USB Power Bank External Battery Charger For Xiaomi Mi 9 8 iPhone


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Estimated Delivery Date:

Estimated Delivery Date: Wednesday, June 14

Due to hight demand, please allow at least 2-4 weeks for delivery.
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The power bank has two regular standards 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 the power bank’s battery voltage is 3.7V, and power bank needs to increase the voltage to 5V when charging the mobile phone, which makes 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 note.

Brand Name


Battery Type

Li-polymer Battery


Digital Display

Output Interface

Double USB

Battery Capacity


Charging Devices

for Smartphone

Input Interface

USB Type C

Shell Material



Portable Power Bank





Support Quick Charge Technology


Supports Solar Energy


Quality Certification


Is LED Lamp Illumination



Black White

Feature 1

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Feature 2

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Feature 3

mobile battery, powerbank 10000, portable charger for cell phones

Feature 4

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Feature 5

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Feature 6

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Feature 7

portable charger for mobile phone, powebank, power pack

Feature 8

external battery telephone, battery pack for phone, battery bank

Compatible Cellphone

For iPhone Xiaomi mi Sony HTC LG Samsung Power Bank

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Customer commitment

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We’re real fans of what we do! Our store is full of amazing carefully hand-picked products that you won’t find anywhere else, that’s for sure.We strongly believe that great stuff shouldn’t cost a fortune that’s why you can trust us to offer goods for every budget.
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How much do you charge for shipping?

We provide free shipping to over 200 countries around the world*
*with some exceptions

Will I be charged any shipping, customs or duties fees?

No, the price you see is the price you pay - you won’t be charged any extra fees.

When will my item ship?

If you order an in-stock item your order will ship within 3 working days.

How long will my order take to arrive?

Orders are shipped by EMS, USPS, which usually takes 5-20 working days after dispatch, but may take longer due to factors beyond our control.

Do you provide tracking information?

You will receive your tracking information within 3-5 working days, but sometimes due to free shipping tracking is not available. If not please contact us at support@expressnztech.com

Can I cancel my order?

You can change or cancel an order within 12 hours. Please contact us at support@expressnztech.com

80 Customer reviews

80 reviews
5 out of 5 stars
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