Charging The Battery - Philips M3001A Service Manual

Charging the Battery

Battery charging should be done in stable temperature conditions within the range 0... 35
in order to ensure correct and full loading of the battery.
Battery status is displayed by the battery gauge in the bottom right corner of the resting
display. The inner white bar shows the charge status of the battery. The longer the bar, the
more charge there is in the battery.
NOTE The battery gauge shows the charge status of the available capacity remaining in the battery.
It does not indicate the condition of the battery. For example, for an older battery with an
available capacity of only half of its original, theoretical capacity, the battery gauge will
indicate a "full" charge status after a charge cycle. Whenever you need to rely on accurate
indication of battery operating time, access the Battery Status Window and check the
TimeToEmpty field (see "Accessing the Battery Status Window" on page 132).
High level
of charge
If the battery is empty, the inner bar is gray.
If the Monitor cannot access the battery (because of a battery or hardware malfunction) the
text string Malfunction is displayed on a black background inside the battery gauge and a
severe INOP alarm is issued.
Battery conditioning is necessary when the text string Condit. Battery is displayed:
In this case, we recommend you remove the battery from the monitor and replace it with a
different battery. Condition the battery you removed. The gray bar indicates how much
operating capacity remains in the battery, even if it requires conditioning.
You can also charge the battery using an external Battery Charger and Conditioner
(M8043A). Refer to the documentation that accompanies the charger for details on charger
use.
Maintaining the Instrument
Battery Handling, Maintenance and Good Practices
Low level
of charge
+
Malfunction
Condit. Battery
o
C
129