Amazon.com: DBTLAP CMOS RTC Battery Compatible for HP Compatible for Compaq NC6000 NC6110 NC6120 CMOS BIOS RTC Battery : Electronics
5200mAh for HP Laptop battery NC6000 for COMPAQ Business Notebook NC6000-DD522AV B25 338669-001 4195818-292 DG105A PPB004A 18228 - AliExpress
Amazon.com: DBTLAP CMOS RTC Battery Compatible for HP Compatible for Compaq NC6000 NC6110 NC6120 CMOS BIOS RTC Battery : Electronics
Amazon.com: Battery for HP Armada E500 Armada E700 Armada M300 Armada M700 Armada V300 EVO N600C NC4000 NC600 NC6000 NC6100 NC6110 NC6120 NC6230 NW8000 NX5000 NX6000 NX6110 Presario : Electronics