HP — HP OmniBook 4000C/CT PC Familiarization Guide, F1081-90051

___________ 7 Power 14.4Vdc Rechargeable Lithium-Ion or NiMH battery Battery life (approximate with one battery): 2 to 3 hrs Battery recharges to high level in 4 hrs using AC adapter while PC is on or off 2-minute low-battery warning AC adapter 100 to 240 Vac (50 to 60 Hz) input; 12 Vdc, 3.3 A output Instant-on maintains computer in ready-to- work state for weeks on a full charge; returns you to your application or file instantly 14.4 Vdc rechargeable NiMH battery pack Battery life (approximate): 3-4 hrs on DSTN DX2/50 2-3 hrs on TFT DX4/100 AC adapter 100 to 240 Vac (50 to 60 Hz) input; 21 Vdc,1.35 A output Suspend-resume power management.

9.6 Vdc rechargeable NiMH or Lithium Ion battery Battery life up to 3.0-3.5 hours. Battery pack recharges to high level in less than 2 hours using AC adapter 2-minute (or less) low- battery warning AC adapter 100 to 240 Vac (50 to 60 Hz) input; 12 Vdc, 2.5 A output Instant-on maintains computer in ready-to- work state for months on a charge. Turn it on again, and you’re instantly back where you were.

Removable Modules Floppy disk drive (can be replaced with a second battery for double battery life) Hard disk drive RAM Battery Floppy disk drive (can be replaced with a second battery for double battery life) Hard disk drive RAM Battery Hard disk drive RAM Battery Mass Storage 540-MB, 810-MB, or 1.2-GB hard disks 260-, 340-, 520-, or 810-MB hard disk options 170, 260, or 340 MB hard disk drive RAM 8- or 16-MB Models upgradable to 64 MB 8-, 16-, or 32-MB RAM cards 4-, 8-MB, or 16-MB RAM models upgradable to 32 MB 4-, 8-, 16- or 24-MB RAM models upgradable to 32MB (CT) 20MB or 24MB (C).