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Slow or Faster charge for battery health
- Thread starter Joey1991
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From the Tesla battery perspective, the consensus is anything Level 2 and below is considered slow charging so no perceptible difference to the main battery degradation.
From the efficiency standpoint, 240V is marginally more efficient than 110V. Further, if the battery needs to be heated or cooled in order to charge, reducing the amount of time of that charge is beneficial as that's less time wasting energy keeping the battery at a certain temperature.
From the efficiency standpoint, 240V is marginally more efficient than 110V. Further, if the battery needs to be heated or cooled in order to charge, reducing the amount of time of that charge is beneficial as that's less time wasting energy keeping the battery at a certain temperature.
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shahryaran
Member
How much of charge is more important for battery health than how fast to charge.
teslamotorsclub.com
Is battery calibration pointless?!
Let's say your car has some amount of battery degradation and you can't get the range you want. You were told to calibrate battery and you may get some range back. Here is the thing... It doesn't matter and don't worry about it. The fact is that the actual amount of battery capacity is there...
teslamotorsclub.com
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l2 speed is well below any charge rate degradation. Well below.
Those understand this prefer to charge to 55% or below, abc, and charge to higher rates as needed just before departure thus minimizing time at higher SoC. Myself included.
Those understand this prefer to charge to 55% or below, abc, and charge to higher rates as needed just before departure thus minimizing time at higher SoC. Myself included.
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fholbert
Active Member
100v 12a is about 3 miles an hour. You going to wear out the cooling system.
220v 22a is still a slow charge.
At home, best would be 220v 60a, but that's still not a fast charge.
A fast charge would be a Tesla Supercharger, as high as 480v 300a. Recent reports say even that, doesn't hurt the battery. I know two people who've had a Tesla ~10 years and use nothing but a Supercharger, their batteries are fine.
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The United States hasn't been 110v/220v in almost 100 years, it's 120v/240v. But, the latest data shows there really is very little difference in battery degradation using 240v over 120v. You get more degradation due to time, usually the first year is the worst and charging over 55%. Unless you really need the range there isn't much point to charging past 55% anyway. Most people charge to 80% and that's fine too, however the battery health will suffer (even thought it's only slightly more). But here's the thing, it all depends on how long you plan on keeping your car because most people get a new car every 5 or 6 years. And even with battery degradation, that only means you would have to charge up more frequently on trips, so that would cost you a bit more.
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I charge to 80% when my battery falls below 40% unless I’m going on a road trip. Not optimal, but the best compromise to me - don’t let perfect be the enemy of the good? I charge L2 32A at home almost entirely, I’d be more concerned about relying more on L3/4 charging. The difference between 120V and 240V isn’t that significant and I couldn’t rely on 120V anyway, too slow.
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