HP omnibook 4000 Service Manual

Page of 53
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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).