Philips Avalon FM20, Service Manual

Page: 102 / 260

7 Testing and Maintenance
102
5 minutes after beginning the charging cycle. If the battery is charged over 90%
Batt full (>90%)
is
displayed until they are charged to 100%. Then
Batt fully charged
is displayed.
Viewing Battery Details
To view detailed information for the battery, select the pop-up key
Battery
.
Documenting Battery Status
To print all battery information in the
Battery Status
window:
1
Enter Service Mode.
2 Select the battery status information on the screen or select
Main Setup
,
Battery
to open the
Battery
Status
window.
3 Select the
Print Status
pop-up key to print the information on the built-in recorder.
Conditioning a Battery
What is Battery Conditioning?
Battery conditioning recalibrate the battery to ensure that it has accurate information on the actual
battery capacity.
Why is Battery Conditioning Necessary?
The capacity of a battery decreases gradually over the lifetime of a battery. Each time a battery is
charged its capacity decreases slightly. Therefore, the operating time of a monitor running on batteries
also decreases with each charge cycle.
Battery conditioning ensures that the value stored in the battery for its full capacity takes account of
this decrease, so that the remaining battery charge can be calculated accurately, and the low battery
warning given at the right time.
When Should Battery Conditioning be Performed?
Battery conditioning should be performed when indicated by the battery status.
NOTE
When the battery status signals a conditioning request, the displayed
TimeToFull
or
TimeToEmpty
may
not be reliable.