084runnerltd
Well-Known Member
12v inside the car is always powered.Did anybody confirm that the 12 volt outlet plug inside the car is switched, so it would not work to attach the battery maintainer to this outlet?
I agree with everyone else, use the posts under the hood.
Nobody should worry that the maintainer/tender is connected to the posts under the hood and not directly connected to the battery. If connecting to the battery was needed to get clean power, BMW wouldnât be instructing us to connect to the posts under the hood...
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