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Old 03-20-2017, 02:09 PM
bcredliner's Avatar
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Originally Posted by StephenVA View Post
I have come to the conclusion that vehicles that are stored for months (i.e winter) would be better off with the battery disconnected from the vehicle and trickle charged. The action of keeping everything active waiting for a door opening, key fob command, etc is just a inch away from issues. Time for me to buy those battery cut off switches for stored vehicles.....
When I store a vehicle I connect a trickle charger but leave the battery connected. There has never been a problem.

I installed a battery cutoff switch in the back, largely for safety and because I am frequently doing something where the battery should be disconnected and it is such a chore for me too get to the battery. Works great!
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Old 03-20-2017, 02:35 PM
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Ditto...a trickle or float charger does the trick even when sitting for long periods of time with the battery connected.

BMW has the consumer cut-off which should leave very little electrical draw...enough for a trickle or float charger to keep things up to snuff.

But disconnecting the battery isn't a bad thing...it just makes extra steps to hop in the car to take her for a spin when you do get ready to drive her.
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Old 04-12-2017, 11:52 PM
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I have not had a chance to check what is draining my battery yet. But I noticed tonight that while I have my charger connected, I have one of the driver side headlights dimly on. When I disconnect it, the headlight goes off. The headlight selector is set to off. Is this normal? I never noticed it before when I needed to charge the battery.

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