This is a generic, equivalent one, 100% compatible. This 7.4V 38Wh Replacement battery is designed to compatible with ASUS C21-X202.

Specifications:
* Product Type: generic/equivalent
* Battery Voltage: 7.4V
* Battery Capacity: 38Wh
* Chemistry: Li-ion
* Cell: 6 Cells
* Color: black
* recharge cycles：500
* Operation time: Around 1.5-3 hours
* Certification: CE FCC RoHS
* Condition: new, 1 Year Warranty!
* No memory effect, Over-charge protection, Over-discharge protection.
* Over-heat protection, Over-current protection, Short-circuit protection.

Compatible Part Numbers:
C21-X202

Compatible with the following ASUS Laptop models:
For Asus VivoBook Q200E
Q200E-BHI3T45

For Asus VivoBook S200 Series
For Asus VivoBook S200E Series
For Asus VivoBook S200E-CT209H
For Asus VivoBook S200E-CT243H
For Asus VivoBook S200E-CT198H
For Asus VivoBook S200E-CT158H
For Asus VivoBook S200E-CT157H
For Asus VivoBook S200E-CT182H

For Asus VivoBook X202 Series
For Asus VivoBook X202E Series
For Asus VivoBook X202E-CT143H
For Asus VivoBook X202E-DH31T
For Asus VivoBook X202E-CT009H
For Asus VivoBook X202E-CT006H
For Asus VivoBook X202E-CT142H

For Asus VivoBook X201 Series
For Asus VivoBook X201E Series

Package Included:
1 x Replacement Laptop Battery for ASUS C21-X202 7.4V 38Wh