the.com/fast charging
electricity bullied into your battery faster than chemistry really wants to allow.
means a charging method that pushes higher voltage or current into a battery to cut charging time, at the cost of extra heat and long-term wear.
from batteries have always charged fastest when nearly empty and slowest near full, the same curve as filling a glass of water; fast charging exploits the empty part hard, then throttles down to protect the cell as it tops off.
heat tradeofffaster charging means more heat, more degradation
curve shapespeed drops sharply after 80 percent capacity
standard chaosdozens of incompatible fast charging protocols exist worldwide
for instance
tesla supercharger v3 — peaks around 250kw, adds miles in minutes not hours
usb power delivery — universal standard since 2012, now up to 240w
oppo supervooc — phones hit 100 percent in under 20 minutes
ccs combo — dominant ev standard across north america and europe