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this post was submitted on 20 Apr 2026
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Electric Vehicles
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I can only speak anecdotally, but the anecdote comes from years of driving an ev. When I'm driving, the first ~8 miles I have to drive to get anywhere involves a long sequence of stop and go lights. I've experimented with both aggressive and very conservative acceleration in this, and what I've found, is that it really, really doesn't matter.
Its practically the same. My thinking is basically that energy = energy. As long as I'm not overshooting the target speed, the rate of acceleration isn't relevant. It takes the same amount of energy either way (in terms of observed, battery based kwh). Basically, if your target speed is the same, it doesn't matter if you are getting to that target speed faster or slower. It takes the same kwh to get the big lump of mass from rest to that speed.
Now where I do find efficiencies is in what that target speed is. Even a bit of traffic massively increases my battery efficiency.
The bigger impact is shedding that speed I think. If you jackrabbit then brake for the next light, it’ll kill the battery even with regen.
absolutely. ideally you don't use any brake whatsoever. breaking is absolutely the enemy of efficiency.
and jackrabbiting works if it allows you to stay in rhythm with the green lights not having to use the brakes. but you should imagine braking as basically "throwing away" energy, even with regen.