HP Compaq Presario,Presario 1700 Supplementary Manual page 95

Did you know...
Once your Notebook has
entered Hibernation mode, it
will not turn on until it is
plugged into an AC adapter or
the drained battery is replaced
with a charged one.
If you cannot connect the AC
adapter but you have a charged
battery, you can change to battery
power and continue working. To
replace the drained battery with a
charged one, complete the
following steps:
1. Save your work.
2. Turn off your Notebook
(or initiate Hibernation).
3. Replace the drained battery with the charged one.
4. Press the Power button to turn on your Notebook.
5. Resume your work.
When AC power becomes available, repeat these same steps
but insert the drained battery and charge it by plugging in the AC
adapter.
If you cannot plug in the AC adapter and you do not have a
charged replacement battery, start Hibernation by pressing the
Power button. When a power source (AC or battery) becomes
available, press the Power button to turn your Notebook on and
resume your work.