Protecting Your EV Battery in Hot Weather

May 21st, 2025 by

2025-Subaru-Solterra-Touring-Onyx

If you drive a Subaru EV, you probably love how quickly it can be charged and its long driving range. However, you should know that the weather can affect the range. With summer on the way, there are things you can do to keep your EV battery in great shape, and Subaru EV maintenance plays a role. Casey Subaru offers these three helpful tips.

Check Your Tire Pressure

When temperatures change, so too can the pressure in your tires. You should make a point to check this often, as it can fluctuate. And when tires are underinflated, this hurts your vehicle’s efficiency, affecting how long it can travel between charges.

Charge Carefully

Speaking of charging, while it may be tempting to get the battery all the way to 100%, this should be avoided. Full charges can actually create more heat. Your EV battery’s optimal range is between 20 and 80%, so avoid the extremes. Likewise, limit fast charging, as this too generates more heat. Instead, use slower charging options when you can, particularly during the hotter parts of the day.

Modify Your Driving

Your EV’s regenerative braking system helps to preserve range, but it works best with gradual, even stops. Speeding and having to brake quickly adds strain to the brakes and battery, and should be avoided. You should also clean out the clutter in your vehicle, as excess weight also hurts range and efficiency, and park somewhere cool or shady whenever possible to keep your vehicle and its battery pack cooler.

Schedule Your Subaru EV Maintenance in Newport News, VA

The service center at Casey Subaru in Newport News, VA, will help keep your Subaru EV in excellent condition for this summer and beyond. Get in touch with us to schedule an appointment. In addition to a tire pressure check, we can rotate them, check the EV coolant and other key systems, and give your vehicle anything else it may need.