ANTIEE Compatible C21-X202 Laptop Battery Replacement for Asus Vivobook Q200E X202E S200E X201E X202 S200 X201 Q200 Series Notebook PC Built-in Battery 7.4V 38Wh 5136mAh ANTIEE Promise: Each product has undergone rigorous testing to ensure the circuit protection, stable current, low self-discharge and guaranteed battery life. Specification: Voltage: 7.4V. Capacity: 38Wh / 5136mah. Battery Type: Li-polymer. Condition: Brand New. More than 500 recharge cycles over the life. Compatibility: Fit for Asus VivoBook S200, S200E, X201, X201E, X202, X202E,S200L, Q200E Series. Compatible Part Number: C21-X202. Expected Run Time: 2.5-5 hours. It depends on the device type, electricity and the way it is used. Grade A cells ensure fast charges, low power consumption. Guarantee Return Policy: Repair or replace during the first year. If for whatever reason you are not fully satisfied, please feel free to contact us directly.