CMOS Battery BIOS For IBM Lenovo ThinkPad X60 X60s X61 X61s X200 X201 | eBay
Amazon.com: Original Lenovo ThinkPad X60, X61, X60S, X61S Series Laptop battery 22++ (8 Cell, High Capacity 5200mAh/75W, 14.4V) 40Y7003 w/ one replacement Spacer & screws[NOT compatible with the X60 X61 Tablet PC
Slim / Thin 3 Pin For Lenovo Ibm X40 X41 X60 X61 X200 X201s Bios Cmos Rtc Clock Battery - Pc Hardware Cables & Adapters - AliExpress