The Lithium Ion batteries used in your monitor store a large amount of energy in a small package. This
allows reliable battery-operated monitoring but also requires care in use and handling of the batteries.
Follow the instructions in this chapter and refer for further details to the Service Guide.
When monitoring a patient, one Philips M4607A rechargeable Lithium Ion battery must always be
inserted into the battery compartment on the right side of the monitor. This applies even when you are
running the monitor from the external power supply.
The battery seals the battery compartment, preventing the ingress of fluids or foreign bodies. A severe
yellow INOP (
!! Insert Battery
) will be issued if the monitor is connected to AC mains without a battery
fully inserted in the battery compartment. This INOP will persist until a battery is inserted.
To use the monitor with battery power, disconnect the external power supply, by removing the MSL
cable from the monitor.
You can switch between battery-powered and mains-powered (AC) operation without interrupting
The battery recharges automatically when the monitor is connected to the external power supply