Electric Vehicles including hybrids and plug-ins

Fast chargers and higher temperatures, for example, tend to degrade batteries quicker than slower, level 2 charging and cooler temperatures.

Other rules for batteries, slower charging and discharging is best. Avoid high discharge level especially in cold. Avoid full charge when hot. Avoid fast discharge when low, and fast charge when almost full (or near 0). That 30% to 80% range, that ultra fast charging is usually limited to is best overall, but slower charging always better. Slow charging above 80% usually fine.