Calibrating a battery pack
When to calibrate
Even if a battery pack is heavily used, it should not be necessary to calibrate it more than once a
month. It is not necessary to calibrate a new battery pack. Calibrate a battery pack under the
following conditions:
●
When battery charge displays seem inaccurate
●
When you observe a significant change in battery run time
●
When the battery pack has been unused for one month or more
How to calibrate
Three steps are involved in calibrating a battery pack: fully charging, fully discharging, and then fully
recharging.
Step 1: Charging the battery pack
A battery pack can charge whether the computer is off or in use, but it will charge faster when the
computer is off.
WARNING!
Do not charge the computer battery pack on board aircraft. Charging the battery
pack may damage aircraft electronic systems.
To charge the battery pack:
1.
Insert the battery pack into the computer.
2.
Connect the computer to an AC adapter, optional power adapter, or optional expansion product,
and then plug the adapter or device into external power.
The battery light on the computer is turned on.
3.
Leave the computer plugged into external power until the battery pack is fully charged.
The battery light on the computer is turned off.
ENWW
Battery packs
47
Summary of Contents for 397381-001
Page 1: ...Notebook PC User Guide ...
Page 10: ...x ENWW ...
Page 38: ...28 Chapter 2 TouchPad and Keyboard ENWW ...
Page 93: ...3 Replace the battery compartment cover ENWW Multimedia Hardware 83 ...
Page 132: ...122 Chapter 9 Wireless Select Models Only ENWW ...
Page 158: ...148 Chapter 12 Setup Utility ENWW ...
Page 170: ...160 Chapter 13 Software Updates and Recovery ENWW ...
Page 182: ...172 Chapter 15 Troubleshooting ENWW ...
Page 190: ...180 Index ENWW ...
Page 191: ......
Page 192: ......