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Hi
Hi The concept of shutting down the alternator does have merit.
Forgive me if it has been covered before, but the latest models of BMW have a sophisticated computer controlled system which cuts off the alternator if the battery charge is above 80% and puts it on when the car is coasting or the brakes applied, or if the charge goes below 80%. The alternator provides (some) drag to slow the car and at the same time charges the battery.
Think of it as a mini regen system.
There is no reason you couldnt do it manually. Like a switch on the brake and another one elsewhere?????
I think they claim ~2% increase??
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