1. Initially, adjust the charging voltage to the required level using the potentiometer, and set the current to the lowest possible; 2. Then, turn off the device, connect the battery pack (be mindful of the polarity, do not reverse it!); 3. Turn on the power switch, and the two digital displays will show the voltage and current; 4. Adjust the charging current with the potentiometer, and the charger will begin to charge; 5. The charger charges at a constant current, switching to a reduced current when the battery voltage reaches the set charging voltage; 6. When the current drops to 10% of the rated current, enter the trickle charge mode, indicating the battery is fully charged; 7. At this point, turn off the power and remove the battery to complete the charging process. Ground Power Units: 2, 36V Aerial Power Units: 1, 400HZ Frequency Converter Units: 7, 115/200V Power Units: 2, 27V DC Power Units: 5, 400HZ Power Units: 12, Aerial Power Units.
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