Is fast charging bad for your EV battery?

When fast chargers came to town, they solved a huge EV issue: long charging times. After all, who’d prefer to wait for hours instead of juicing up their car within 20 to 30 minutes? But, there’s one thing we need to keep in mind: we shouldn’t overdo it. DC fast chargers (or Level 3) degrade the battery faster than AC chargers (or Level 1 and 2) do. Rapidly charging a battery means that high currents are created that result in high temperatures — and both are known to str