Find out real charging times for various EV models and charging stations. Compare slow alternating current (AC) charging and fast direct current (DC) charging on the go.
Charging speed (especially on DC fast chargers) is not constant. An EV battery charges at its highest rate between **10% and 50% capacity**. Above 50%, the power starts to taper down, and **above 80%, it drops dramatically**.
This is due to the chemistry of lithium-ion cells. Charging a battery is like filling a stadium: at first, people enter quickly and easily find empty seats (low resistance). Once most seats are occupied, newcomers must search for remaining seats more slowly to avoid crowding (protecting cells from overheating and damage). Therefore, on long-distance trips, it is highly recommended to **unplug and continue driving once you reach 80% charge**.
**AC (Alternating Current)**: The car converts the current itself using its built-in onboard charger (usually 11 kW). Typically used overnight at home.
**DC (Direct Current)**: The station delivers current directly to the battery at huge power (50-350 kW), allowing charging during a quick coffee break.
In freezing temperatures, a battery without preheating will charge much slower (so-called coldgating). Modern EVs actively preheat the battery to an optimal 25-30 °C before arriving at a charger (if entered in the navigation system).