IBM Laptop MT 2632 User Manual download pdf (Page 35)

Checking the battery pack

Battery charging does not start until the Power Meter

shows that less than 95% of the total power remains;

under this condition the battery pack can charge to 100%

of its capacity. This protects the battery pack from being

overcharged or from having a shortened life.

To check the status of your battery, move your cursor to

the Power Meter icon in the icon tray of the Windows

taskbar and wait for a moment (but do not click), and the

percentage of battery power remaining is displayed. To get

detailed information about the battery, double-click the

Power Meter icon.

Note: If the battery pack becomes hot, it may not be able

to charge. Remove it from the computer and leave it

at room temperature for a while. After it cools down,

reinstall and recharge it.

To check the battery pack, do the following:

1. Power off the computer.

2. Remove the battery pack and measure the voltage

between battery terminals 1 (+) and 5 (−). See the

following figure:

Terminal Voltage (V dc)

1 + 0 to + 12.6

5 Ground (−)

3. for Lithium ion battery;

v If the voltage is less than +11.0 V dc, the battery

pack has been discharged.

Note: Recharging will take at least 3 hours, even if

the indicator does not turn on.

If the voltage is still less than +11.0 V dc after

recharging, replace the battery.

for Nickel metal hydride battery;

v If the voltage is less than +8.0 V dc, the battery

pack has been discharged.

Note: Recharging will take at least 3 hours, even if

the indicator does not turn on.

If the voltage is still less than +8.0 V dc after

recharging, replace the battery.

4. for Lithium ion battery;

v If the voltage is more than +11.0 V dc, measure the

resistance between battery terminals 4 and 5. The

resistance must be 4 to 30 K ohm.

Checkout guide

General descriptions 31

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IBM Laptop MT 2632 User Manual Page 35

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