User's Manual

10
Calibrating the battery: The battery has an internal gauge that
provides an estimate of the amount of energy in the battery as it
charges and discharges. If your battery is showing inaccuracy in
the power gauge or large jumps in capacity, (i.e. the power is
reading 50% and goes dead shortly thereafter) it may need
calibration.
Tap Start / Settings / System / Power / Calibration to see if the
message reads “Calibration recommended” or “Calibration not
necessary”.
If calibration is recommended or the battery is reporting
inaccurately, perform the following:
1. Plug in the AC adapter. The unit MUST stay charging while
doing the calibration or you may need to restart the process.
2. Ensure the temperature is between 0°C and +45°C (+32°F and
+113°F) while charging.
3. Tap
Start Calibration.
4. During the calibration process, the
Power
key is disabled
temporarily and the backlight is turned up to 100%.
It takes up to 25 hours to complete the calibration. A notification
will state “Calibration is complete”. It is recommended to not use
your unit during the calibration process so calibrate when the use
of the unit is not required. If you wish to stop the calibration
process, tap Start / Settings / System / Power / Calibration /
Stop Calibration.
Possible error messages that can occur during calibration:
Error Message Solution
Battery is not charging,
aborting
Battery temperature may be out of range.
Wait until battery temperature settles and
try again.
Discharge became
invalid, restarting
Calibration will restart itself.
AC power is in an
unknown or uncontrolled
state; aborting
Plug in unit and restart calibration. Try a
different AC adapter and restart calibration.
If it continues to fail, have the unit serviced.