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5.5.7. Battery
5.5.7.1. Inserting Battery / Changing Battery
Loosen the screws of the battery compartment on the back side of the Timeboy and insert the bat-
teries. Observe the polarity markings when inserting the batteries. The charging circuit (10%
charge) for the batteries is designed in such a manner that constant charging is possible. The bat-
teries are charged with about 70 mA via the charging circuit in the docking station. Therefore, NiMH
batteries with at least 700 mAh have to be used. If you use batteries with a lower capacity, the bat-
teries may become hot during charging. If you use batteries with a higher capacity, the charging
takes longer in order to obtain full battery performance. If the NiMH batteries are completely empty,
they should be charged for 20 hours.
You must turn off the device before removing the batteries. Press the power switch until "Power
off..." is displayed in the first line of the display. After releasing the power switch, the device is shut
down.
!
Caution:
Direct sunlight can reduce the lifetime of the battery. When not using the device, do
not expose it to direct sunlight.
5.5.7.2. State of Charge
The state of charge of the battery is displayed in form of a battery.
Depending on the state of charge, the battery on the display is filled with a green bar.
If the battery is completely green, the
battery is fully charged.
If the battery charging see you this
symbol.
Below the minimum voltage, the color
turns
red
.
If the state of charge is not sufficient for operating the device, the battery indicator flashes.
Checking the battery:
If despite a long charging time the battery indicator does not become green, at least one of the bat-
teries is damaged. If you determine the battery concerned, you can save costs.
Possible measures:
Remove the batteries and charge them in a charger with refresh function. Such devices normally
show whether a battery still has enough capacity.
Measure battery voltage with a multimeter. The voltage must be at least 1.25 V after charging.
Manual TimeboyIV
page 19
date: 11.07.2013 Version 04.02.04