21 Using Batteries
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Display Brightness Setting
1 In the Main Setup menu, select User Interface, Brightness, then Optimum. This selects a level of
brightness suitable for most monitoring locations that uses less battery power than brighter
settings.
2 Ensure that the current level of brightness is suitable for your monitoring location.
Charging a Battery
A battery can be charged in a monitor during monitoring. You can also use the 865432 Smart Battery
Conditioner (previously M8043A) to charge batteries.
1 Insert the battery into a monitor connected to the external power supply (M8023A).
2 Charge the battery until it is full, the battery LED goes out, and the battery power gauge is filled.
In certain situations, internal temperature conditions may mean that the battery will not charge. This is
sometimes necessary to protect the battery from damage, and does not indicate a malfunction. In this
case you must use the 865432 Smart Battery Conditioner (previously M8043A Smart Battery
Conditioner) to charge the battery.
Conditioning a Battery
You must condition a battery when its "battery requires maintenance" symbol shows on the Screen.
Do not interrupt the charge or discharge cycle during conditioning. You can condition a battery in a
monitor.
CAUTION
Do not use a monitor that is being used to condition batteries to monitor patients. The monitor
switches off automatically when there is no battery power left.
It is, however, preferable to use the 865432 Smart Battery Conditioner (previously M8043A) for
external battery conditioning. The Smart Battery Conditioner automatically performs the correct
charge or conditioning process and evaluates the capacity when fully charged. For details please see the
Instructions for Use for the Smart Battery Conditioner. Do not use any other battery chargers or
conditioners.
To condition a battery using a monitor,
1 Insert the battery into a monitor connected to the external power supply (M8023A) that is
connected to mains power.
2 Switch the monitor power off.
3 Charge the battery until it is completely full. Open the Battery Status window.
Check that the
Batt fully charged message is displayed.
4 Disconnect the monitor from mains power and let the monitor run until there is no battery power
left and the monitor switches itself off.
5 Reconnect the monitor to mains power and charge the battery until it is full for use or charge to
50% for storage.
To condition the battery from a Battery Extension, use the 865432 Smart Battery Conditioner.