Setup
2001589-312 Revision B TONOPORT VI 15
Fig. 3-2 Exchanging the connector, connecting the 
charging unit
 Check that the voltage ratings on the nameplate of the 
charging unit match those of your local power line.
 If necessary, replace the connector to match the wall 
outlet type:
– push the button below the connector and hold it 
depressed (1, Fig. 3-2)
– remove the connector and insert the suitable type 
of connector 2, 3
– ensure that the new connector locks into place.
 Connect the cable of the AC power adapter to the 
charging unit 4 and plug the AC power adapter into 
the wall outlet.
 Insert the two rechargeable batteries into the charging 
unit, observing the correct polarity.
Charging Batteries with the VARTA Charging Unit
Fig. 3-3 Battery symbols and bars in the charging unit 
display
Insert 4 or 2 batteries. To charge only 2 batteries, insert 
them in the two compartments on the right or on the left. 
The batteries take up to 3 hours to recharge. Once the 
batteries are inserted, battery symbols will appear in the 
charging unit display where each symbol corresponds to 
one of the charger compartments (Fig. 3-3). During the 
charge cycle, the corresponding bar in the battery 
symbols blinks. Note: If the battery symbols and bar do 
not light up, only one battery may be inserted or the 
batteries are inserted the wrong way round. When the 
batteries are charged, the bars are permanently 
illuminated. The charging unit now trickle-charges the 
batteries to compensate for self-discharging.
The battery temperature is monitored in the charger. 
When the temperature is too high, the bar in the battery 
symbol is permanently illuminated and the charger 
switches to trickle-charging.
If the batteries are correctly inserted and the displayed 
battery symbols show no bars, the charger has identified 
a battery problem. The charging current will be cut off. 
Remove the batteries and discard, observing the 
applicable waste disposal regulations.