For that matter what is it with batteries that make them so fickle?
You can’t charge them to full, but at the same time you can’t let them die, but at the same time you should wait for them to die before you charge since constant charging is bad, but at the same time not charging enough is also bad like what’s the real deal with batteries T_T
In: Technology
As far as EVS go, it varies a little bit based on the battery technology. In general, And I say in general because technology is changing and your actual use case for the battery may make this more of a hassle, But you generally think of it like a balloon.
Yes, it’s capable of being filled to the point where it is full at its maximum design capacity. But if I want to fill this balloon a thousand times between now and 5 years from now, fully stretching it out and fully deflating it is maximum wear and tear on every square inch of it. If I can get away with just filling it to 80% deflating it 80% deflating it, etc, Long-Term health of the battery will be better as I’m not pushing its limits or stressing it as much.
That’s why most of your EVs default to 80% as a charge limit, but you absolutely can bump it up to 100% if you need it for a trip later. Just, long term, 100% without a real need isn’t the best idea.
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