Cameron Sino 200mAh Battery for IBM ThinkPad T22,T23,T30,T40,T41,T42,T43,T510,T520,T530,T60,T61,W500,W520,X30,X300,X31,X32,X400|Smart Accessories| - AliExpress
New 3 Pin CMOS RTC Battery CR2032 02K7062 02K7063 For IBM ThinkPad R30 R31 R32 | eBay
CMOS Battery for IBM ThinkPad 560X 570 R50 T20 02K6541 02K6572 02K7078 92P0986 | Fruugo NO
FOR IBM THINKPAD R50E R50P R51 R52 R60 X30 X31 X32 300 LAPTOP CMOS BIOS BATTERY 818216833516 | eBay