Here are key best practices for EV owners using DC fast charging frequently:
1. Maintain 20-80% State of Charge (SOC)
Charge primarily between 20% and 80% SOC for optimal speed and battery longevity. Charging beyond 80% slows significantly (e.g., taking 32+ minutes for the last 20% in some models), while charging below 10% can stress the battery.
2. Prioritize Compatibility
Verify your EV’s max charging rate (e.g., 55 kW vs. 350 kW) and match stations accordingly. Using overly powerful chargers for slower-charging EVs wastes resources and annoys other drivers.
3. Use Apps to Locate Reliable Stations
Leverage EV apps/websites to find reputable networks, check real-time availability, and avoid malfunctioning stations.
4. Avoid Frequent Full Charges
DC fast charging to 100% should be rare—reserve it for long trips. Regular full charges degrade batteries faster and occupy chargers unnecessarily.
5. Monitor Charging Sessions
Stop charging once you reach 80% unless essential. Most EVs alert users via in-car displays or connected apps when charging speed drops.
6. Balance Fast and Level 2 Charging
For daily use, Level 2 charging (AC) is gentler on batteries. Reserve DC fast charging for road trips or urgent needs.
7. Avoid Extreme Temperatures
Battery health is optimized in moderate climates. Precondition the battery (if supported) before fast charging in cold weather.
Example Scenario:
For a frequent road-tripper:
- Plan stops around 20-80% SOC using apps like PlugShare.
- Charge to 80% at each stop to minimize downtime and battery stress.
- Switch to Level 2 overnight at destinations when possible.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/what-are-the-best-practices-for-ev-owners-who-frequently-use-dc-fast-charging/
