On 3/17/20 6:28 PM, Neal, Gary via EV wrote:
I've thought about this while supercharging my Tesla. There are situations where I would be ok using a supercharger a little slower than full bore with the goal of reducing battery damage. For example, if we wanted to have a leisurely meal while charging. I know that occupies a supercharger longer, but it also doesn't damage the battery as much. Right now, there doesn't seem to be a method to reduce Tesla supercharging speed, right?
You can slow the battery charge a bit by running your climate. Open windows and run heat full on. It's not worth the trouble. With Teslas, SuperCharging is just not a significant issue. Tesla has said so and those Tesloop cars went hundreds of thousands of miles charging nearly solely on SuperChargers.
It seems Tesla does a good job of preserving the batteries in the face of what might be termed "abuse". Though I use SuperChargers only on trips. My 2013 S has 133k miles and has seen a steady decline of SuperCharge power. Down from ~120kw to around 80kw now. My 2018 3 with only 30+k miles still charges at up to 140kw where available; I've never encountered a working 250kw SuperCharger, only 120kw and 150kw. Neither car has alarming capacity reduction.
I work on the assumption that battery damage is proportional to the time spent at 100% charge level. When I feel I might need a 100% charge, I top off within an hour of departure. I have seen people set up a 100% charge the night before departure, leaving the car at 100% for as long as ~8 hours.
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