The hot summer months can cause more than the occasional dehydration. For new EV drivers it can drive up their range anxiety, especially when traveling long distances in hot weather. To alleviate concerns it is crucial to understand how heat affects your car’s battery and how to optimize its performance.
Your EV Battery and Hot Weather
A common concern among EV drivers is the impact of extreme heat on lithium-ion batteries. Electric cars are less efficient in hot weather because high temperatures reduce power output, leading to a lower-than-usual range.
In simple terms, when your EV battery overheats, it’s more difficult for it to cool down because heat slows down the chemical process of the battery. This not only reduces range but can also cause longer charging times. In the long term it can even compromise the battery's longevity if not managed properly.
What Temperature is Best for my EV?
The optimal ambient temperature for your EV is around 68°F to 77°F (20°C to 25°C). In this range, electric cars are most efficient, offering peak battery performance, longer range, and shorter charging times.
How to Overcome EV Battery Issues in Hot Weather
Here are a few easy-to-follow tips to help you avoid issues with your EV in hot weather:
- Pre-condition before driving
- Minimize use of electronics
- Activate Eco-Mode
- Park in the shade
- Check tire pressure
Pre-conditioning is often associated with cold weather, but it’s just as important in hot weather. Keep your EV plugged into your home charger and set it to bring the battery and cabin temperature down to a more optimal range. This will extend your range and cool the cabin without losing charge.
Once you start driving, turn your air conditioning down. While a cool cabin is desirable on hot days, excessive use of air conditioning will reduce your range. Similarly, plugging in additional parts or devices, like tablets and phones for entertainment, will also decrease range.
Consider using eco-mode to limit the power available to the electric motor. It adjusts performance to conserve battery power, such as reducing acceleration levels, which in turn extends your range.
When parking your EV, choose a shaded spot to keep your vehicle and battery cooler without using pre-conditioning. It’s a free way to manage hot weather!
Finally, underinflated tires can decrease efficiency. You can overcome that issue by checking your tire pressure before your trip and bringing them up to the recommended PSI to improve your range.
How to safely charge your EV during the hot summer months
Heat on a normal summer day poses no risk to your EV or its battery. In the case of an exceptionally hot day, or if traveling for a long period of time under the scorching sun, the Ampure Go is the only charger in the market manufactured specifically to withstand extreme temperatures. Made to endure a wide range of weather conditions, including heatwaves, the Ampure Go is safe to operate in temperatures of up to 176°F (80°C). Simply put, a bit of sunshine won’t stop you from charging your electric car even on a hot summer day.
