Technical data
174 Chapter 11
Working with Batteries
Recalibrating Batteries
Working with Batteries
Recalibrating Batteries
Each battery contains a microchip that monitors battery usage and
tracks how much capacity is available. This function can become less
accurate because of temperature fluctuations, aging, self-discharge,
repeated partial charging, and other factors. This inaccuracy is
displayed on the System Statistics—Battery screen as Fuel Gauge
Error.
To ensure the accuracy of the battery’s internal capacity tracking
system, occasionally you need to recalibrate the battery. Recalibrating
is done by fully charging the battery, fully discharging it, recharging it
again, and then verifying that the error has been corrected.
You can recalibrate a battery internally or with the optional external
charger. The charger makes the process simpler.
Determining if a Battery Needs Recalibration
To view the battery status, press
System, System Stats, Battery.
NOTE After recalibrating, if the battery is not fully charged or still shows
more than a 10% Fuel Gauge Error reading, repeat the recalibrating
procedure. If the second recalibrating does not restore a full charge and
an error reading of 10% or less, the battery needs replacement. This
error will affect all of the displayed battery charge indicators.
Recalibrating with the External Battery Charger
1. Insert a battery into the external battery charger.
2. If fuel gauge recalibration is recommended by the charger (LED
flashing red), press the button on the front of the external battery
charger to initiate a recalibration cycle.
The charger will charge the battery fully, discharge it completely,
then recharge it fully again. The entire process can take up to 10
hours.
3. Install the battery into the analyzer.
4. On the System Statistics—Battery screen, verify that the battery is
fully charged and recalibrated.