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frankhartkopf asked

Global Link After three weeks voltage Drop!

The voltage of my LifePO4-Battery Bulltron Polar 165 Ah dropped for some hours. During that period the GL520 voltage readings showed gaps. After some hours the voltage was back to 13,25 V and stable with continous readings. Any idea, what might have caused the Problem? The Battery is only 10 month old. Bulltron 165Ah Polar version. All loads are disconnectef, but the BMV 720, which is conected via VE-Direct cable to the GL520. Any idea? img-9371.png

globallinkvoltage drop
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frankhartkopf answered ·

I forgot to mention, it is a Caravan Installation. The Caravan is currently parked in a shef for the Winter Break.img-8917.jpegimg-8934.jpegImage Caption


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k-k answered ·

POLAR means with integrated heating, right?

So i think the batt is soaking its own energy to heat up and then comes alive again.

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frankhartkopf avatar image frankhartkopf commented ·
Dear K.K., Thank you for your advice. Yes the Bulltron battery does have a 130 Watt heating inbuild. I will doublecheck, once temperature drops below zero degree celsius.

Best regards Frank

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