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Compaq.com - Compaq Presario 1200 Series Maintenance and Service Guide - Models: 1255, 1256, 1260, 1262, 1266, 1267, 1273, 1274, and 1275
To maximize the energy stored in the battery pack, follow these guidelines:
● Condition the battery pack at least every 30 days to improve overall battery performance.
● Keep a battery pack in the computer when using it with AC power to supply the battery pack with a constant
trickle charge.
● Store the battery pack in a cool, dry place when not in use.
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Conditioning a Battery Pack
CAUTION: To avoid a loss of data, ensure that all data is saved before discharging a battery pack.
To condition a battery pack, complete the following steps:
1. Plug in the AC adapter and allow the battery to charge until the LED light on the display stops blinking.
Your battery gauge may read 100 percent for a period of time before LED light on the display stops
blinking. Do not unplug the AC adapter until the arrow disappears.
2. Unplug the AC adapter and allow the battery to drain until the computer reaches hibernation and turns
itself off. Do not plug in the AC adapter during this process or you will need to restart with Step
No. 1. You may use the computer while the battery is draining.
3. Your battery is re-conditioned.
4. Plug in the AC adapter and begin using the computer.
The table below shows the approximate battery pack charge times.
Approximate Battery Charge Time
Computer On Line Off Line
NiMH Battery Pack 4.0 hours 2:00 hrs
Li ion Battery Pack 4.5 hours 2:50 hrs
Disposing of a Used Battery Pack
In the interest of safeguarding our environment, Compaq Computer Corporation recommends that nickel metal
hydride (NiMH) and lithium ion (Li ion) battery packs be recycled. Battery packs should be handled in accordance with
country, state, province, or local regulations.
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