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Originally Posted by serialk11r
^^ 1A? I read the current can get up to 4A :O Maybe that's wrong though.
So if a switch is attached to the brake and gas so that whenever the engine is under very light load or when the car is decelerating, that would be a very weak sort of regenerative braking. Basically collect electrical energy when it's cheap/free from the engine. I think BMW is doing this in new cars. Since these switches would be modulated a lot a relay might be a good idea.
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Mine is 7.5 amps. Using a relay is simply a cheap safety measure.