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The duration of this charging cycle depends on the dis
charge state and capacity of the battery and can be up to
30 minutes. In this state the appliance can already be used
independently of a mains power supply.
Charging of the batteries during the cycle:
approx. 80 - 100%.
• Step 3: Trickle charge - red charge indicator
The batteries are completely charged, the charge is main-
tained. The appliance can be used independently of a
mains power supply. Charging of the batteries during the cycle:
approx. 100%.
This cycle starts after every disconnection from the mains power
supply!
During initial use of the appliance or the first use of a
new set of batteries: New, uncharged batteries have only
a precharge and must be charged for at least 4 hours
before using the appliance for the first time. In order
to achieve the maximum capacity, the first charge cycle
of the batteries should not be interrupted!
Batteries become warm during charging; this is a normal
phenomenon and is not dangerous. Batteries are subject to
self-discharging. If the appliance is seldom used, the batteries
should nevertheless be charged roughly 1x per month to prevent
a deep discharge.
Do not leave the batteries or the appliance unused or uncharged
for prolonged periods. If batteries are not used for longer than
a few months, the may become unserviceable and have to be
replaced. If the appliance is not to be used for a prolonged pe-
riod, remove the batteries and store them in a dry place at normal
room temperature.
Deep discharging of the batteries should always be avoided
as this negatively affects the service life of the batteries. If the
speed of the appliance drops noticeably, the batteries should be
recharged.
Batteries are wear parts and are subject to ageing during normal
use. A reduction in the capacity and hence in the useful operating
not lit
time during the course of time is normal and not a fault. The
warranty granted on the appliance therefore does not apply to
the batteries. In order to maintain the full running time of the
appliance, batteries should be replaced after approx. 500 - 600
charge cycles or 2 years.
The appliance can be operated with rapid-charging NiCad or
NiMh AA batteries with capacities from 1000 mAh to 2700 mAh,
but always only with four identical batteries at the same time.
NiMH batteries are to be recommended due to their higher ca-
pacity. The charging and operating times shown are indicative
values and related to the batteries supplied with the appliance.
Operation
The appliance can be operated permanently with the AC adapter
or with batteries independently of a mains power supply. If the
appliance is operated with an AC adapter, the batteries auto-
matically take over the power supply in the event of a mains
power failure. During battery operation, the operating time in-
dependently of a mains power supply depends on the condition
of the batteries. If all the batteries are intact and fully charged,
operating times of > 8 hours are achieved with the batteries sup-
plied with the appliance.
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