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Nosram Time out

Posted: Mon Apr 01, 2024 2:48 pm
by gtv1
Hi folks,
I have an Nosram Timeout discharger. I wonder if anybody knows why there are 3 leads on the input?
They are red,black and blue.
I use it sometimes just using the red and black, but I wonder what the blue was for?
Was it for saddle packs?