8 Service
Care Instructions for the Battery
The capacity of the battery diminishes with time. You can prolong the life of the battery if you observe the fol- lowing points:
Without a power supply, the device operates from the
When the battery does not have sufcient capac- ity, the battery symbol in the display and the bat- tery status light on the side of the device turns red. When the device is running for a long period of time, the surface becomes hot and a warning sym- bol appears on the projection. The device switches automatically to
Use the device at least once a week.
Charge the battery regularly. Don’t store the device with a completely discharged battery.
If the device is not used for several weeks, dis- charge the battery a little by using the device before storing it.
If the device only works using the USB connection or with the power supply, the battery is defective. Keep the device and the battery away from sources of heat.
DANGER!
Do not replace the battery yourself
Do not try to replace the battery yourself. Incorrect handling of the battery or using the wrong type of battery can cause damage to the device or cause injury.
Battery deep discharge
When the battery is in deep discharge or the device is not used for a longer period, proceed as followed:
1Connect the device to the power supply (see also chapter Connecting power supply / Charging bat- tery, page 9). The device behaves as follows:
| Device off | Device on |
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Connect | Slow charging | Device turns on |
to a com- |
| and off again. |
puter (U- |
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SB 5V DC |
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min. 0.7A) |
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Connect | Fast charging | Device remains |
to the |
| turned on. |
power |
| Slow charging |
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| |
adapter |
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2The device can be turned on and is ready to use after approximately ve minutes of charging time.
Battery recharge time with device off
| Turning on | Completely |
| possible | charged |
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Slow charging | 5 minutes | 10 hours |
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Fast charging | 5 minutes | 3 hours |
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Service | 23 |
