ZMI QB821 LED Display QC3.0 Fast Charging Dual USB Power Bank 20000mAh Bulk Buy

Factory wholesale ZMI QB821 20000mAh

LED Digital Display With Mirco USB & Type-C Dual Ports Mi PowerBank Upgraded

20000mAh capacity High quality lithium polymer power bank could charge your phone, pad and other intelligence devices whenever you are in business trip or travel. Stealth digital display, Seeing the power shows 100%, it seems to see a sense of security. Low Power Devices Charging, Safely charge lower power devices such a s bluetooth headsets or finess bands. Simply double press the power button to enter 2-hour low power charging. Dual USB Output and Input port, Design for dual USB output could better and quicker charge your devices when you own different kinds of digital devices. Micro USB+ USB-C dual input design means the two most common interface types exist at the same time. Even if you forget to take the original charging cable out, you can easily find Micro USB or USB-C cables to charge your portable charger without worry for forgetting cables. Muliti Portect safety system, Surge protection, short circuit prevention and more advanced safety features protect you and your devices.


  • Model: QB821 (20000mah version)
  • Battery type: Rechargeable Lithium Polymer Battery
  • Battery energy: 74Wh(20000mAh 3.7v)
  • Rated Capacity: 12600mAh 5.1 V(TYP 2.4A)
  • Size: 149.3*70*25mm
  • Weight:451g
  • Input: 5V=2A 9V=2A
  • Single port output:5.1V=2.4A 9V=2A 12A=1.5A
  • Dual port output:5.1V=3.6A

Package Contents

  • 1 x ZMI 20000mAh Power Bank
  • 1 x 2 in 1 Micro to Type-C Cable 
  • 1 x Instructions

Online Quote

Inquiry ZMI QB821 LED Display QC3.0 Fast Charging Dual USB Power Bank 20000mAh