Quote:
Originally Posted by cRiPpLe_rOoStEr
Even if you wouldn't get regenerative brakes, a vacuum booster still seems kinda overkill for such a small car. And an electric vacuum pump would be sucking some precious kWh...
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While I agree that kWh are precious, I'm not concerned about a vacuum pump wasting them. Unless you're running a
big vacuum pump
constantly (which there is no need to do either), you'd be measuring in "mere" watt-hours. The pumps I've been eying use maybe 1 amp at 12 volts, and it would be lucky to run for 5 minutes total per typical trip, at a guess.
What doesn't seem so easy to find is an affordable vacuum switch, which would make this particular task a lost simpler.