Tenuous, sourcelesa statement alone - that has no bearing on automotive batteries which use different battery chemistry, design choices, and validation processes. Apples to oranges.
Comment on BYD's latest EVs can get close to full charge in just 12 minutes
artyom@piefed.social 2 days ago
The Chinese have been producing phones that charge at like 200 watts for many years as well. Turns out no one else uses them because the batteries are completely worn out after a short time.
Ferrous@lemmy.ml 2 days ago
schizoidman@lemmy.zip 2 days ago
Fast charging does negligible battery wear on a phone compared to slow charging
sanzky@beehaw.org 2 days ago
phones don’t run at 400V, at higher voltage you need lower amperage to push the same energy
ByteSorcerer@beehaw.org 1 day ago
The total voltage or amperage of the battery pack does not mean anything for the battery cells. You can put more cells in series and get a higher voltage at lower current, or more in parallel and get a higher current at a lower voltage. But all individual cells will run at the same voltage in either configuration (iirc between 3 and 4V), and the current per cell will also be the same for a given load regardless of the situation.
The main thing a higher battery pack voltage accomplishes is that the cables connected to the battery don’t need to be as thick, as the required thickness of a cable depends only on current, not voltage.
artyom@piefed.social 2 days ago
I don’t understand what that has to do with anything? Have you heard of a thing called C-rate?
hanrahan@slrpnk.net 16 hours ago
well,.that’s not true.
artyom@piefed.social 13 hours ago
You put together a compelling argument.