This is a generic, equivalent one, 100% compatible. This 3.85V 4000mAh Replacement Li-ion battery is designed to compatible with Xiaomi Mi 9T Pro Redmi K20 Pro BP40.

Specifications:
* Product Type: generic/equivalent
* Battery Voltage: 3.85V
* Battery Capacity: 4000mAh/15.4Wh
* Condition: new, 1 Year Warranty!
* Easy Installation
* Battery is tested accurately before shipping
* Compound Li-ion Chip, Safer and More Reliable

Compatible Part Numbers:
BP40, M1903F11I

Compatible Model:
For Xiaomi Mi 9T Pro, For Xiaomi Redmi K20 Pro

Package Included:
1 x Replacement Cell Phone Battery for Xiaomi Mi 9T Pro Redmi K20 Pro BP40 3.85V 4000mAh