LI Steve

I finally got around to wiring my Charge-O-Mat directly to the battery on my 928 (since the cigarette lighter circuit is open when the ignition is off).

When I plug the maintainer in, a red light illuminates on the front of the maintainer.

Does this light have significance (e.g., red=battery discharged, green=charged, etc.)?

Thanks,
-Steve

ltc

On my 2 Porsche Tequipment chargers (I think we''re talking about the same ones):
http://e-partssales.com/Merchant2/me...y_Code=POCCARE
the red light comes on when the battery is charging and will go off when the battery is full charged (trickling).
As soon as you put a load on the battery/charger (i.e. open a door), the red light should come back on and once the battery is fully charged again, the light will go off.
Depending on the state of your battery, it might take a day or two to fully charge. If the light stays on continuously, you have either a defective battery (internal short or two) or you have a current draw somewhere in the vehicle.

LI Steve

Thanks ltc,
That is the same one that I have, and that is the exact info I was looking for.

-Steve