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To fully discharge a battery pack:
1. Right-click the Power Meter icon in the notification area,
at the far right of the taskbar, and then click Adjust Power
Properties.
– or –
Access the Power Schemes tab by selecting Start >
Control Panel > Performance and Maintenance >
Power Options > Power Schemes tab.
2. Record the 4 settings in the Running on batteries and
Plugged In columns so that you can reset them after the
calibration.
3. Set the 4 options to Never.
4. Click OK.
5. Disconnect the computer from its external power source, but
do not turn off the computer.
6. Run the computer on battery power until the battery pack is
fully discharged. The battery light begins to blink in an amber
color when the battery pack has discharged to a low-battery
condition. When the battery pack is fully discharged, the
battery light is turned off and the computer shuts down.
Power
Battery packs
7–17
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