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7 Operation
7.1 STM 820/860
WARNING
Danger of explosion from sparking!
When connecting and disconnecting the battery, make sure that the battery
charger is switched off.
Make sure that the battery to be charged complies with the battery charger's
specifications.
NOTE
The power cable and the connection cables to the battery must not be subjected
to tension, be kinked, or laid over sharp edges under any circumstances.
STM 80: STM 80: turn the potentiometer (Figure 1) all the way to the
left.
STM 860: switch off the device with the mains switch (Figure ).
Connect the charging clips to the battery:
Red: + pole, black: – pole
STM 80: set the potentiometer to the capacity of the battery to be
charged. STM 860: switch on the device with the mains switch.
Exception: for material handling vehicles and bus depots, the mains
switch does not need to be operated because the battery detection
system ensures that the battery is disconnected from the charger.
The charging process starts.
When the LED shines green, the battery is more than 90% charged.
When the LED slowly flashes green, the battery is 100% charged. Trickle
charging is being realised by the device.
Trickle charging can continue for any length of time.
STM 80: turn the potentiometer (Figure 1) all the way to the left.
STM 860: switch off the device with the mains switch.
Disconnect the charging clips from the battery.
7.1.1 Operation of battery chargers for the charging of vehicle batteries
It is recommended to disconnect the vehicle battery from the on-board
power supply, so as to prevent the vehicle's electronics from being dam-
aged. Please note that upon disconnection of the battery, all of the body
control units' volatile memories lose their saved data. In this event, it may
be necessary to re-enter data for the following: radio code, vehicle clock,
timer, on-board computer, seat position, etc.
The battery terminal which is not connected to the car body is to be con-
nected first. The other connection is to be attached to the car body, far
from the battery and the petrol pipe. The battery charger is then to be
connected to the mains.
After charging, the battery charger is to be disconnected from the mains.
The connection to the car body is then to be removed, followed by the
connection to the battery.
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Figure
Figure 1