Tesla Supercharging Does Not Significantly Affect Battery Life, Study Reveals

Study finds that using Superchargers frequently doesn't cause a significant difference on battery life

Recurrent

It has long been believed in the industry that frequent DC fast charging for your Tesla or any EV is terrible for battery longevity. However, a new report from Recurrent, which analyzed data from over 12,500 Tesla vehicles in the US, clearly shows little to no difference in battery degradation between frequent and rare fast charging.

Recurrent studied fast charging on thousands of Tesla vehicles in the US to learn if the software and safety mechanisms in the battery management system (BMS) prevent damage to the battery. With Labor Day travel coming up, this is the perfect time to share what is fact and fiction when it comes to fast charging.

The Recurrent Study: A Comprehensive Analysis

Your electric vehicle battery uses direct current (DC) power. However, the electricity from the grid (or from an outlet) is alternating current (AC). In-home charging, which is AC charging, the car’s onboard charger converts the AC electricity to DC and then sends it to the battery. The onboard charger has a built-in limit on how quickly it can do this. The maximum speed is usually around 11 kW, so AC charging can generally add 20-40 miles per hour, depending on the vehicle.

On the other hand, DC charging happens when the conversion to DC energy happens outside of the car. This is almost exclusively reserved for public charging stations and Tesla Superchargers. Since the electricity going into the car bypasses the onboard converter, it can refill the battery much faster. One of the biggest concerns with fast charging is that it can, theoretically, damage the battery by pushing too much energy into the battery too quickly. This would lead to irreparable, long-term range loss.

Key Findings: No Significant Impact on Battery Degradation

Will fast charging hurt my EV battery? The short answer is that occasional fast charging is fine. The study compared cars that fast charge at least 90% of the time to cars that fast charge less than 10% of the time. In other words, people who almost exclusively fast charge their car and people who rarely fast charge.

The results show no statistically significant difference in range degradation between Teslas that fast charge more than 90% of the time and those that fast charge less than 10% of the time.

Initial analysis by the team at Recurrent suggests that the study findings can be applied across Tesla models and other EV manufacturers. However, detailed research is being conducted on other popular vehicles Recurrent supports. In short, the robust thermal, voltage, and battery management systems that EV makers have invested in protect their batteries from damage with routine fast charger use.

Tesla specifically does an excellent job regulating power to and from the battery based on the temperature of the battery pack, its state of charge (charge percentage), and other environmental factors such as external temperature.

When Fast Charging Can Cause Damage

When is fast charging more likely to cause damage? There are several times when fast charging may impact your EV battery more. Avoid fast charging in extreme heat without preconditioning your battery. Preconditioning is when the car’s thermal management system pre-cools or heats the battery to accept a higher charge rate.

Typically, the battery will be preconditioned if you set your car’s navigation to a fast charge station. Similarly, precondition the battery before fast charging in extreme cold. Driving a bit before fast charging is often enough to warm up the battery or get to the fast charger using your car’s navigation. Avoid fast charging your EV at very low states or very high states of charge since battery resistance will be higher.

Overall, this study adds to the growing body of knowledge regarding EV battery longevity and charging practices. Nonetheless, being mindful of battery health during extreme temperatures is still encouraged.

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Tesla Improves Wrap Services: Cuts Prices Drastically, Adds New Colors and Expands Availability

Not a Tesla App

After canceling the in-house wrap program for the Cybertruck last month, Tesla has reintroduced the program with a lot of changes. Let’s take a look at the original program, then we’ll dive into what’s changed.

Tesla began the wrap program for the Model 3 and Model Y in the fall of 2023. With the arrival of the Cybertruck, Tesla launched Matte Black and Satin White options for the Cybertruck and later added 11 more colors.

These are high-quality PPF (Paint Protection Film) wraps, which protect the paint in addition to changing the color of the vehicle. PPF is thicker, lasts longer, and is far superior to traditional vinyl wraps, but unfortunately, the service is only available if your vehicle is brand new.

When the program shuttered last month, many people were disappointed about the closing as it allowed owners to bundle the cost of the wrap service into the vehicle’s financing.

New Wrap Prices

First things first - the price of the wraps has dropped considerably, and Tesla does not appear to be using a different material - it is still PPF, not vinyl. These new prices are a lot more comparable to third-party offerings that normally use vinyl wraps.

Tesla initially offered 11 wrap colors, but that selection has now been reduced to eight per vehicle. Interestingly, the color options vary by model—Model 3 and Model Y owners have their own distinct palette. The Cybertruck also boasts its own unique set of colors, though unfortunately, the popular Satin White option is absent from its catalog.

Of course, the ever-popular Matte Black is still available, along with a fairly unique set of other vivid colors.

New Locations

Not a Tesla App

When the wrap program launched, it was limited to just three locations in California and one location in Texas. That meant that unless you were taking delivery at West Covina, Oceanside, Costa Mesa, or Santa Clara, you’d be unable to get a first-party wrap done by Tesla.

Now, under the new program, Tesla is offering wraps out of all the original locations and adding Seattle, Washington. What initially seemed like Tesla scaling back its wrap service has turned out to be to them making it more affordable and efficient.

New Purchases Only

For now, the wrap offers are still constrained to new vehicle purchases—you won’t be able to have Tesla wrap a vehicle that’s already been delivered. Paint damage and scuffs can impact the installation of PPF and require additional time to smooth out the vehicle surface.

Either way, with cheaper wrap options, Tesla is now directly competing against third-party wrap shops when it comes to wrapping vehicles in PPF. While it’s still a bit more expensive than you’d find elsewhere, it also comes with a level of care and precision from technicians intimately familiar with your vehicle.

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Tesla Increases Price of Model S; Starts Offering Free Lifetime Supercharging

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For the first time in quite a while, Tesla has increased the price of one of its vehicle offerings. The Model S Long Range and the Model S Plaid have both received a hefty price increase. However, not all is bad - as Tesla also added a new benefit for buyers.

Price Increase

The price increase for the Model S is $5,000 - currently only in the United States. This price increase will likely impact other markets, including Canada, in the coming days.

The Model S Long Range now starts at $79,990, while the Model S Plaid now starts at $94,990. The Model S and Model X now have the same starting price. Interestingly, that’s also the same pricing point for the Cybertruck AWD and Cyberbeast Trimotor non-Foundation Series. 

The vehicle configuration does not appear to have changed, so the new pricing is simply an increase rather than the addition or removal of features. Tesla previously cut the price of the Model S and Model X by 15% in 2023, so this could simply be an adjustment to ensure that the vehicle pricing stays in line with inflation and other factors.

Free Lifetime Supercharging

For those on the fence about ordering a Model S, Tesla has brought back Free Lifetime Supercharging when you order a new Model S on or after December 13, 2024. As always, Free Lifetime Supercharging is restricted to the buyer’s Tesla account and to that specific vehicle. It cannot be transferred to another vehicle or another owner after ownership transfer. It’s worth noting, that it also doesn’t exclude the owner from receiving Supercharger idle fees or congestion fees. There is currently no end date for this promotion.

There are currently no changes to the Model X, neither a price increase nor the addition of Lifetime Superchargering. However, when Tesla makes changes to one of their premium vehicles, it usually affects the other one as well. So be on the lookout for potential changes to the Model X offering in the coming days.

We’ve seen Tesla value Lifetime Supercharging at $5,000, so this falls in line with the price increase we’re seeing. It’s possible that Tesla will begin to bring back Lifetime Supercharging as a perk for buying into their more premium Model S and Model X cars, or this could be another temporary promotion to get buyers who are on the fence to go ahead and make their purchase while this promotion lasts.

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