Amazon.com: Lenovo 6 Cell Battery 47+ ( 43R9254 ) For Models X200, X200S, X201i , X201 And X201s Battery, Not Used In X200 Tablet Or X201 Tablet : Electronics
Lenovo Thinkpad X201s Series LIB211 4400mAh / 48Wh Notebook Battery - BattDepot United States