How does the green indicator light on the GRAUPNER PB AUTOMATIKLADER charger indicate that the battery is fully charged?

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Accepted Answer

On the GRAUPNER PB AUTOMATIKLADER charger, the green light indicates that the battery is fully charged. This is the end-of-charge signal.

LED Indicators:

Red LED on: the battery is charging. The charger is actively charging the battery using Constant Current/Constant Voltage (CC/CV) mode.
Green LED on: the battery is fully charged and the charging process is complete. You should then disconnect the battery and the charger.

Charging Procedure:

Plug the charger into a 110-240 V / 50-60 Hz power outlet. The red light blinks once to confirm that the device is ready.
Connect the battery to the lead to the charging cable connector, observing the polarities (RED = positive terminal, BLACK = negative terminal).
The red light turns on to indicate that charging is in progress.
When the green light turns on, the battery is fully charged. Then disconnect the battery and the charger.

Note: The charger automatically detects the battery voltage (2V, 6V, or 12V) and adjusts the charging current (0.2 A to 1 A) according to the battery capacity (2 Ah to 20 Ah). The charger is equipped with built-in protections against overcharging, short circuits, and reverse polarity.

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