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19 Using the Plug-In Power Supply
When you plan to stay in one place for a while, like when you are sleeping, you may use the plug-in power supply
instead of the batteries. Unlike the batteries, there is no limit to how long the device can work when you use the plug-in
power supply. The plug-in power supply will work with either U.S. (120V AC) or European (230V AC) outlets.
Note: It is normal for the power supply to become warm when in use. If the power supply becomes too hot to touch,
unplug it and contact technical support (Section 27).
When the device has a battery and is also connected to the wall power supply, the device will utilize the wall power
supply as the preferred power source. When the wall power cord is plugged in while the device is running on battery,
the device will automatically switch from battery power to wall supply power.
Connecting the Plug-In Power Supply
1. Plug in the power supply to a standard wall outlet using the power cord that comes with it.
2. You do not need to remove the battery from the device to use the wall power supply. Please note that a battery
in the device will not charge while the device is plugged into the wall power supply. Depleted batteries must be
placed on the battery charger to recharge. If the TTFields are activated you do not need to turn them o to plug in
the wall power supply.
3. Plug the connector of the wall power supply into the AC port on the back panel of the device (next to the
power switch).
4. If the TTFields are running, the device will automatically switch to wall power supply without interruption of the TTFields.
If the device is not turned on, turn on the power switch and wait for the self-check to be completed (about 10 seconds).
Push the TTFields button to start the device (as described in Section 22).
To Disconnect the Plug-In Power Supply and Go Back to Battery Power
1. Ensure that a charged battery is properly inserted in the device before removing the wall power supply. If the TTFields
are running, you do not need to turn them o before removing the wall power supply. The device will automatically
switch to battery power once the power supply is removed.
2. Remove the connector of the plug-in power supply from the back panel of the device.
3. If the device is not turned on, turn on the power switch and wait for the self-check to be completed
(about 10 seconds). Push the TTFields button to start the device.
4. Store the plug-in power supply for future use.
Using the Plug-In Power Supply\\DC - 099263/000001 - 12620961 v1
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