5. Charging is indicated by a permanently lit red LED located between the two buttons.
NOTE
Both the permanently lit red LED in the handheld and the flashing red LED in the •
charger merely indicate the battery charging process and do not represent a
warning!
With empty NiMH batteries, the handheld can be charged for a short time using •
a charging time of at least 15 minutes.
If the handheld is left in storage for longer periods with batteries inserted, the •
batteries may discharge. If a prolonged storage without use is foreseeable, it is
recommended to remove the batteries from the handheld. After a storage period
of the handheld with inserted rechargeable batteries of more than 3 months, it
is recommended to fully recharge the rechargeable batteries before reuse.
If the batteries have discharged after a full charge and a too low battery voltage •
is displayed, the batteries have become unusable. In that case, replace the bat-
teries.
During the charging process, elevated temperatures may occur in the handle •
area of the handheld and in the charging station, which, however, decay imme-
diately after the charging process has been completed and do not pose any risk
to the user or patient.
19
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