Amazon.com: Synergy Digital CMOS/BIOS Battery, Works with Toshiba Portege M400-S933 Tablet PC CMOS/BIOS, (Ni-MH, 2.4V, 20 mAh) Ultra High Capacity Battery : Electronics
Amazon.com: Synergy Digital CMOS/BIOS Battery, Works with Lenovo ThinkPad X61 Tablet PC 7764 CMOS/BIOS, (Li-Ion, 3V, 200 mAh) Ultra High Capacity Battery : Electronics