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Xiaomi Power Bank 3 18W 20000mAh Two-way Quick Charge

The Xiaomi Power Bank 3 18W 20000mAh is a portable powerhouse with dual USB and a USB-C output that offers high-speed charging and ensures your devices make it through your busiest and longest days.

2,390.00 2,500.00

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Xiaomi Power Bank 3 18W 20000mAh Features:

  • More durable and optimizes charging efficiency, offer constant power
  • Two USB and Type-C ports, which can charge the devices at the same time, the USB-C and Micro USB provide two charging ways for power bank, convenient and fast
  • 9V 2A, 12V 1.5A up to 18W power output, delivers fast and efficient charging for each connected device.
  • Adopts premium Lithium polymer battery cells. Xiaomi Power Bank 3 18W 20000mAh compatible with smartphones and tablets as well as a variety of digital cameras and handheld gaming devices.


  • Battery Type: Lithium polymer batteries
  • Battery capacity: 20000mAh 3.7V (74Wh)
  • Rated capacity: 12000mAh (5V/3.6A)
  • Input interface: Micro-USB / USB-C
  • Output interface: 2 x USB-A / USB-C

Input spec:

  • USB-C: 5.0V–3.0A / 9V–2.0A / 12V–1.5A
  • Micro-USB: 5.0V–2.0A / 9V–2.0A / 12V–1.5A

Output spec:

  • Multi-ports: 5.0V–3.0A
  • USB-A: 5.0V–2.4A / 9V–2A / 12V–1.5A
  • USB-C: 5.0V–3.0A / 9V–2A / 12V–1.5A

Charging time:

  • About 11 hours (5V/2A charger)
  • About 6.5 hours (18W charger)
  • About 4.5 hours (45W charger, charging cable in the package)

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Dimensions 15.06 × 7.22 × 2.63 cm


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See the following table to take a look on the shipping and payment methods:

Shipping Method
Payment Method
Delivery Charge
Delivery Time
Inside Dhaka
Home Delivery
Advance Payment
BDT 70
Max 2 Days
Cash on Delivery
BDT 70
Max 2 Days
Outside Dhaka
Home Delivery/Collect From Sundarban Courier Branches
Advance Payment
BDT 100
Max 2-5 Days
Cash on Delivery
BDT 130
Max 2-5 Days


Special Notes

  • For the Cash on Delivery payment method Outside Dhaka, customer have to pay 200 TK Advance as booking money, which is non-refundable. This amount will be deducted from the total bill amount. (i.e. Total bill of an order is 1000 TK customer will pay 200 TK as advance and the rest 800 TK while receiving the product).

Warranty Policy

Official Warranty (Provided by brands):

  1. This warranty is provided by the brands and usually ranges from
  2. Inform us if your product is under warranty period. (Warranty period will be mentioned in the package of the product.)
  3. You must keep the package and it will be necessary while claiming.
  4. In some cases you might visit or contact with the official service center of the respective brand.

Unofficial Warranty (Provided by Gear Buzz BD Limited):

  1. All of our products (except the products with official warranty) have a common 10 days warranty.
  2. Inform us if your product is under warranty period.
  3. You must keep the package and it will be necessary while claiming.

Return/Replacement Policy

Conditions for Return:

  1. Gear Buzz BD provides 3 days of easy returns for every product under certain conditions. Products that are damaged, defective, or not as described on the website can be returned within 3 days.
  2. If a wrong product is sent or the product is not the same as described on our website.
    Under this condition, the product must be returned unused, in the original packaging, and with all seals & tags intact.
  3. If the product is damaged, defective, or counterfeit.
  4. The product must be returned in its original packaging. All accessories, user manuals, warranty cards, and our invoice must also be returned.

Note that, change of mind is not applicable after receiving the product. 


For details and to know the refund procedure please visit our Return, Warranty & Refund Policy page.