Problems and Advice for Operating an Electric Car in a Heatwave
With rising summer temperatures and more frequent heatwaves around the world, electric vehicle (EV) owners face unique challenges when it comes to driving and maintaining their cars in extreme heat. While EVs are known for their efficiency and environmental benefits, high temperatures can affect performance, battery life, and comfort. Here’s what you need to know about the problems electric cars face during a heatwave and practical advice to overcome them.
🔥 Common Problems When Driving an EV in a Heatwave
1. Battery Performance and Degradation
High temperatures can strain the lithium-ion batteries used in most EVs. Excessive heat may:
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Reduce battery efficiency
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Accelerate battery degradation over time
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Cause the thermal management system to work harder, draining energy
2. Reduced Driving Range
When it's hot outside, your car's air conditioning system draws more power, which:
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Lowers overall driving range
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Shortens the distance you can travel on a full charge
3. Slower Charging or Charging Interruptions
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DC fast chargers may slow down in high temperatures to prevent overheating.
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The EV itself may also limit charging speed to protect the battery.
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Some charging stations may temporarily shut down if they overheat.
4. Cabin Discomfort
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Interior temperatures can rise quickly if the vehicle is parked in the sun.
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Excessive heat makes pre-conditioning (cooling the cabin before entry) essential.
5. Increased Tire Pressure
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Heat causes air to expand, which may lead to overinflated tires, affecting safety and tire wear.
✅ Tips & Advice for Driving Your EV During a Heatwave
1. Park in the Shade or Use a Cover
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Whenever possible, park under shade or use a reflective windshield cover to reduce interior heat buildup.
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Parking in a garage is even better for battery protection.
2. Pre-Cool the Car While Plugged In
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Use your EV's remote climate control feature to cool the cabin while it’s still charging, so it doesn’t drain the battery once you’re on the road.
3. Avoid Charging in the Hottest Part of the Day
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Charge your EV during cooler hours, such as early morning or late evening, to prevent thermal stress on the battery.
4. Monitor Tire Pressure Regularly
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Check your tire pressure frequently and keep it within the manufacturer's recommended range.
5. Use Eco Driving Modes
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Use eco-mode or climate efficiency settings to balance comfort and energy consumption.
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Reduce the use of energy-draining features unless necessary.
6. Keep Software Updated
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Manufacturers often release battery management updates that improve heat performance. Make sure your car's software is up to date.
7. Know Your Charging Station
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Choose charging stations that offer shade, covered shelters, or cooling systems—especially during long road trips.
8. Plan for Shorter Trips or Extra Charging Stops
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Account for reduced range and be ready to make more frequent charging stops during extreme heat.
🚘 Final Thoughts
Electric vehicles are built to handle a wide range of climates, but like all vehicles, they perform best when properly maintained and used with care during extreme weather conditions. With proactive steps like parking smartly, pre-cooling the cabin, and managing your charging schedule, you can protect your EV’s battery and enjoy smooth driving—even during the hottest summer days.