Toshiba original RTC / CMOS battery - P000552810 [TS48062] - $0.00 US : Notebook Solutions, Spare Parts & Support
Amazon.com: Synergy Digital CMOS/BIOS Battery, Works with Toshiba Qosmio G30-175 CMOS/BIOS, (Ni-MH, 2.4V, 20 mAh) Ultra High Capacity Battery : Health & Household