
As the popularity of electric vehicles (EVs) continues to grow in Canada, concerns about battery degradation are becoming more prominent. A recent test on a 2025 Tesla Model Y Long Range Rear-Wheel Drive has sparked interest, with the vehicle's battery health dropping to 88% after just 13,162 miles. This is a significant decline, especially considering the car's relatively low mileage and age. For Canadian EV owners, this raises questions about the long-term durability of their vehicles' batteries and the potential impact on range and overall performance.
The test was conducted using Tesla's built-in battery health check procedure, which involves discharging the battery to near empty and then recharging it to 100% overnight. The results showed a decline in battery health from 95% at 6,000 miles to 90% at 11,000 miles, and finally to 88% at 13,162 miles. This translates to a range of 302 miles, which is 36 miles less than when the vehicle was new. Canadian EV owners who are considering purchasing a Tesla Model Y or other EVs may want to factor in the potential for battery degradation when calculating the overall cost of ownership, including the potential impact on Canadian pricing and iZEV incentives.
The vehicle's owner, Branden, notes that about 43% of charging was done via a Level 2 AC home charger, while the remaining 57% was from DC fast charging. However, this does not fully explain the capacity loss. Branden suggests that the constant drain on the battery while parked, due to features like Sentry Mode and Cabin Overheat Protection, may have contributed to the degradation. Canadian EV owners who live in areas with extreme temperatures may need to consider the potential impact of these features on their vehicle's battery health. Additionally, provincial rebates and incentives may be available to help offset the cost of purchasing an EV, but the potential for battery degradation could affect the overall value of these incentives.
The test results have implications for Canadian EV owners, particularly those who are considering purchasing a Tesla Model Y or other EVs. While the results are alarming, it's essential to consider the various factors that contribute to battery degradation. Canadian EV owners can take steps to minimize the impact of battery degradation, such as avoiding extreme temperatures, avoiding frequent fast charging, and keeping their vehicles in a garage or shaded area. Additionally, Canadian EV owners may be eligible for provincial rebates and incentives, such as those offered in British Columbia and Ontario, which can help offset the cost of purchasing an EV. By understanding the factors that contribute to battery degradation and taking steps to minimize its impact, Canadian EV owners can help ensure the long-term durability and performance of their vehicles.