26.11.2025

Wenn Sie Ihr CTEK-Batterieladegerät an die Fahrzeugbatterie anschließen und den Strom einschalten, bemerken Sie möglicherweise, dass eine Leuchte am Ladegerät blinkt. Verschiedene Ladegeräte sehen unterschiedlich aus, aber die meisten CTEK-Ladegeräte – wie die Modelle MXS, CT5, NXT, MXT und PRO25 – verfügen über diese Leuchte.

Wenn Sie sich fragen, was diese Leuchte bedeutet und warum sie blinkt, sind Sie hier genau richtig, um Antworten zu erhalten.

Dies ist die Betriebsanzeige. Wenn sie leuchtet, bedeutet dies, dass Sie das Ladegerät an eine Steckdose angeschlossen haben und es mit Strom versorgt wird. Wenn sie jedoch nach zwei Minuten immer noch blinkt, bedeutet dies, dass das Ladegerät zwar mit Strom versorgt wird, aber die Batterie, die Sie aufladen möchten, nicht erkennen kann.

In diesem Fall überprüfen Sie bitte zunächst die Verbindung zur Batterie. Achten Sie darauf, ob die Klemmen richtig angeschlossen sind. Wenn Sie die Klemmen korrekt angeschlossen haben und das Ladegerät die Batterie immer noch nicht erkennt, ist die Spannung in der Batterie möglicherweise zu niedrig. Aufgrund der integrierten Sicherheitsfunktionen des Ladegeräts muss die Batterie je nach Ladegerät einen Ladezustand von mindestens 1,5 – 3 V aufweisen, damit das Ladeprogramm startet.

Wenn Ihr Ladegerät über einen Versorgungsmodus verfügt, können Sie diesen nutzen, um die Batterie über das Sicherheitsniveau zu bringen, dann in den normalen Lademodus wechseln und die Batterie wie gewohnt aufladen.

Aktivieren Sie einfach den Versorgungsmodus, lassen Sie ihn etwa eine Minute lang eingeschaltet und wechseln Sie dann in den Lademodus. Beachten Sie jedoch, dass die Klemmen beim Aktivieren des Versorgungsmodus nicht mehr funkenfrei sind. Seien Sie daher beim Anschließen vorsichtig und berühren Sie die Klemmen nicht miteinander.

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