HP 79XXY - Manual (Page 24)

20 hp pavilion home pc
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Replacing the Battery
A lithium battery on the motherboard provides
backup power for the computer’s timekeeping
capability. The battery has an estimated life
expectancy of seven years.
When the battery starts to weaken, the date and
time may be incorrect. If the battery fails, replace
it with a CR2032 lithium battery (3 volt,
220mAH rating) or an equivalent battery.
Warning: There is danger of explosion
if the battery is incorrectly replaced.
Replace only with the same, or
equivalent, type of battery. Discard used
batteries according to the manufacturer’s
instructions.
Avertissement : Le remplacement
incorrect de la pile peut provoquer une
explosion. Utilisez uniquement une pile
de même type ou de type équivalent.
Éliminez les piles usées conformément
aux instructions du fabricant.
To replace the battery:
1 Turn off the computer and all peripherals.
2 Disconnect the modem/phone cable.
3 Disconnect the power cord and all other
attached cables (such as the keyboard, mouse,
and monitor).
4 Remove the side panel (see “Removing the
Side Panel” on page 4).
5 If necessary to reach the battery, remove the
drive cage (see “Removing the Drive Cage” on
page 6).
6 If necessary to reach the battery, remove the
fan duct (see “Removing the Fan Duct” on
page 5).
7 If any cards restrict access to the battery:
3 Remove the add-in card bracket. (See
steps 7–9 on page 13.)
3 Remove the cards that are on or near the
battery.