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Calculating the charging time
Current time (Min.) =
Capacity of the battery (mAh) x 1,5 x 60
Charging current of the appliance (mA)
Automatic charging control/
Retention charging
This Universal Battery Charger controls the charging
time for rechargable batteries of the types Ni-Cd
and Ni-MH separately. This control is based on
the –
∆ U („minus Delta U“) calculation.
In mathematics, with Delta
∆ differences are
described.
„Minus Delta U“ in this case means a negative
voltage difference.
This charge identification makes itself useful in the
following effects:
Should a battery be charged with a constant current,
its voltage rises continuously. When the battery is full,
its voltage reaches a maximum and falls lightly with
further current flow. This light fall in voltage is recog-
nised by the charging electronics and the charge
process is terminated. The Universal Battery Charger
automatically switches to „Retention charging“.
Troubleshooting
The Universal Battery Charger displays no functions
• Check to see if the power cable is correctly
inserted into the power socket.
• Check to see if the power socket is „live“. To do
this, connect a different, functioning electrical
appliance to the socket.
The inserted batteries are not being charged
• Check that the batteries are being inserted in
accord with their polarity.
• Check that batteries suitable for charging have
been inserted into the Universal Battery Charger.
Suitable for charging are exclusively rechargable
Ni-Cd and Ni-MH batteries of the types
AAA/AA/C/D and 9V Block batteries.
• Remove the power cable from the power socket
and allow the appliance to cool down, as the
temperature monitoring has possibly activated
itself.
Other malfunctions
Make contact with one of our service partners close
to you if:
• the malfunction cannot be corrected as described
above,
• or, when operating the Universal Battery
Charger, other malfunctions occur.
IB_KH980_E415_GB_LB6 17.10.2007 15:27 Uhr Seite 6