Synergy Digital Battery Compatible with Toshiba Portege R500-S5006V CMOS/BIOS Battery (Ni-MH, 2.4V, 20 mAh) - Repl. Toshiba CB17 Battery Go to amazon.com Related posts Top 10 recommendation portege r500 for 2022 Feature(Ni-MH, 2.4V, 20 mAh)Replacement Battery for Toshiba CB17 BatteryMade with high quality Japanese cells - 100% compatible with your OEM battery - 3 year warranty.Synergy Digital is a registered trademark