Portable Small Power Bank Power Bank Ships From : China|Russian Federation
Portable Small Power Bank Power Bank Ships From : China|Russian Federation
Portable Small Power Bank Power Bank Ships From : China|Russian Federation
Portable Small Power Bank Power Bank Ships From : China|Russian Federation
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Product always receives high satisfaction ratings from our customers
Product Details

Powerful External Battery Charger Power Bank 20KmAH Portable Charging Powerbank Mobile Phone Powerbank 20000 mAh for Xiaomi Mi

  • Item Type: Power Bank
  • Shell Material: Plastic
  • Battery Type: Li-Polymer Battery
  • Battery Capacity: 15600 – 19999 mAh
  • Size: 135 x 65  x 25 / 0.98 inch mm / 5.31 x 2.56 x 0.98 inch
  • Support Quick Charge Technology: No

Package Includes:

  • 1 x External Battery Charger

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Please NOTE :

  • The External Battery Charger/power bank has two regular standards of capacity, one is the battery capacity, one is the rated capacity.  The  20,000mah power bank, being labeled 10000mah/3.7v core capacity be converted to rated capacity 12400mah/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 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 that can really be used by us is about 12400mAh.
  • The conversion rate of the entire mobile power industry is basically in the range of 60%-70%. Please kindly noted.


Shipping & Payment


We are proud to offer international shipping services that currently operate in over 185 countries and islands worldwide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectations anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
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
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
  • If you received the wrong item you can request a refund or a reshipment.
  • If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

We do not issue the refund if:

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of Urelectronix (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

Customer Reviews
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20 Sep 2021

is sooo good! thanks for awesome experience!

20 Sep 2021

Cheapest online i guess. i must say the quality is more than decent, so the purchase was a great one

20 Sep 2021

so far this is the best i ordered online. recommend!

19 Sep 2021

Excellent quality of product! Advise this store :)

19 Sep 2021

Waited for product 2 month. The money was returned quickly, but I'm unhappy. The store every time wrote that the parcel on the way, wait.

18 Sep 2021

Discounted is a true bargain. thanks to the seller!

16 Sep 2021

Happy with the purchase, will order again soon

15 Sep 2021

Product as promised. Quality very good. Second time buy, but this time was not taxed. Arrived in 30 days

14 Sep 2021

lovely one

13 Sep 2021

Everything is good. Store is very attentive :) Thank you!

12 Sep 2021

Though I've just had this thing for two days 2 weeks I'm quite overjoyed with it. This is) {{a great (a good purchase. I purchased it for my roommate. We were both fascinated with the quality of the. The shipment actually came quickly and I was quite contented. way outdid my hopes. I would positively recommend this thing. Love it so much I am already planning to buy more.

12 Sep 2021

Compact, but not thin

10 Sep 2021

Top Product

9 Sep 2021

Power Bank is excellent. The product is very good described and fully matches my expectations. I use it as external battery for a dash camera in my car. 16-17 hours of work. Excellent store. I recommend.

8 Sep 2021

Thanks for

7 Sep 2021

worth the money. thnx.

External Battery Charger 20KmAH Best Power Bank

16 Reviews
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