How Much Should You Charge Your Tesla

By Henry Farkas

There’s an article in “The Drive” that’s been repeated in other media. Here’s a link if you want to read the whole article.

It’s not important in your day-to-day driving since few people use up all the electricity in their Tesla on a normal day. But, if you have lots of driving scheduled for a day, or if you’re taking a cross-country trip, you have to make allowances for this particularly Tesla problem.

The Results of the Tests

Edmunds, which does reviews on all cars, and which has rated the Tesla Model 3 as the number one best electric vehicle, found that none of the models of Tesla met the EPA range estimates as advertised by Tesla. None of the models. All the other electric cars easily went 20 to 50 miles past their EPA-rated ranges.

How Much Should You Charge Your Tesla

Tesla’s Response

Naturally, the Tesla engineers weighed in, but what they said was not very helpful. They said that the reason the Teslas failed to reach the EPA range is that Edmunds didn’t keep driving them until they couldn’t go an inch farther. Edmunds stopped driving when the range number on the screen went down to zero. So Edmunds repeated the testing and kept driving until the cars actually stopped. Tesla calls this a safety buffer.

Don’t Plan on Using the Safety Buffer

Don’t plan on using the safety buffer. It’s terrible for the battery. It’s just as bad as charging your battery up to 100% and then letting it sit overnight. Don’t do that either. Bad.

Be Kind to Your Battery

We want our batteries to last as long as the rest of the car. So, in my case, I charge to 80% every night. That way, I’m not damaging the battery, and I have more miles than I need for day-to-day driving. I do plan on taking the Tesla on road trips once this furshlugginer pandemic is over. I have the SR+ which, in theory, can go 250 miles on a charge. I won’t plan on 250 miles between supercharges. When my car was new, and I had 1,000 miles or six months of free supercharging, whichever came first, I didn’t actually need any supercharging. Not going anywhere. Pandemic y’know. The six months came first.

My Supercharging Experience

But, since supercharging was included in the price of my car, any time I needed to go somewhere near a supercharger, I went ahead and used the service. Here’s what I found. When the battery is low, the supercharger gives extremely rapid charging. I can’t tell you the exact rate of charge because different superchargers give different rates of charge depending on which generation of supercharger you’re using. But as a general rule, you’ll get extremely rapid charging when the battery is low. You’ll probably get to 80% in 30 to 40 minutes. That last 20% will take longer. A lot longer.

Suggested Strategy

You’ll probably do better in total trip time if you don’t wait around for the last trickle of energy to fill your battery to 100%. Between 80% and 90%, the charging goes painfully slowly. Between 90% and 100%, the charge slows to a trickle. You’ll stop a bit more often, but you’ll spend less total time on the chargers during your trip if you just charge to 80% each time you need to charge. When I take my trip, I’ll be sure to let you know how it goes.

Public Health Advice

One last thought for car trips. Elon Musk gives you video games to entertain yourself during a supercharger stop. If you’re on a trip, don’t play the video games. Get out of the car and walk around. Sitting in a car for long periods of time can cause blood clots in your legs. Don’t let that happen.

Tesla Activates In-Cabin Radar in Software Update 2025.2.6

By Not a Tesla App Staff
Not a Tesla App

Tesla has released software update 2025.2.6, and while minor updates typically focus on bug fixes, this one introduces a major new feature. With this update, Tesla has activated the in-cabin radar, a sensor that has been included in some vehicles for more than three years but remained unused until now.

Why Not Vision?

Unlike vision-based systems, radar can precisely measure object dimensions and even detect movement behind obstacles by bouncing radio waves off surrounding surfaces. This allows for more accurate and reliable measurements of objects that vision may not even be able to see, such as behind the front seats.

What Tesla Announced

Tesla recently highlighted the 4D radar in the new Model Y, explaining how it will improve passenger safety. Tesla executives stated that the radar would be used to properly classify passengers and improve the way airbags deploy.

Tesla went on to say that in a future update, Tesla will use the in-cabin radar to detect any potential passengers left in the vehicles. Since radar can even pick up on heartbeat and breathing patterns, it can provide a much more accurate method of detecting children left in a vehicle. Tesla talked about how the vehicle will send owners a notification via the Tesla app and enable the HVAC system if it detects a passenger in the vehicle. It’ll even call emergency services if needed.

New Feature in Update 2025.2.6

Tesla has officially named this feature in update 2025.2.6, “First-Row Cabin Sensing Update,” which appears to align with the first portion of what Tesla discussed in the new Model Y video.

In the release notes, Tesla describes the update as:

“The first-row cabin sensing system has been updated to use cabin radar, which is now standard in all new 2025 Model Ys. Your Model Y was built pre-equipped with the necessary hardware, allowing Tesla to also bring this technology to your vehicle.”

For now, it appears that Tesla is using the radar to detect and classify passengers in the front seats. This could eventually replace traditional seat sensors, reducing the number of hardware components and lowering production costs.

Tesla plans to expand the feature later this year, bringing rear-seat passenger detection in Q3 2025. While Tesla talked about the feature for the new Model Y, we expect it to be available for all vehicles with the in-cabin radar.

Supported Models

Although Tesla is vague in their release notes, this feature is being added to all Model Ys that include a cabin radar. Tesla started including the cabin radar in 2022, but its availability may vary by region and model. The Model 3 didn’t receive the cabin radar until it was redesigned in 2024, while all Cybertrucks already include it.

The owner’s manual for the redesigned Model S and Model X doesn’t specifically mention the interior radar, although Greentheonly believes the vehicles also include one, so we’ll have to wait to determine whether those vehicles also receive this new feature.

At this time, the feature appears to be only going out to Model Y vehicles, but we expect it to become available on other supported models soon.

We love to see these kinds of updates. Tesla is increasing the safety of existing and new vehicles through a software update while also making them more affordable to own.

Tesla Updates App: Adds Robotaxi Code, New Model Y Models and New Tesla Service UI

By Karan Singh
@olympusdev_ on X

Tesla has updated the Tesla app to version 4.42.0, and this time, it’s more than just bug fixes. The app includes a new service interface, introduces support for the new Model Y, and, for the first time, includes some code for the Robotaxi coming later this year.

This update was released for iOS and should be available on Android within a few days.

Refreshed Model Y 3D Model

First up in the update is the introduction of the 3D model for the refreshed Model Y. Interestingly, while we all know it as Juniper, the file code name inside the update lists the vehicle as “Bayberry.” The Bayberry name was introduced in Tesla app update 4.41.5.  Tesla’s internal code names sometimes change as the vehicle evolves - and we’ll continue to refer to it as the refreshed or new Model Y for ease of understanding.

A rear-angle shot of the Refreshed Model Y from the Tesla App
A rear-angle shot of the Refreshed Model Y from the Tesla App
@olympusdev_ on X

As usual with Tesla’s 3D models in the app, there’s a lot of detail, although it’s not easy to see since you can pinch and zoom the model in the app. The 3D models used in the app are actually the same models that Tesla uses in the vehicle, although sometimes they include different lighting effects, but they’re all highly detailed.

Robotaxi API

Tesla has added a new endpoint in their app for Robotaxi - and it’s the very first Robotaxi or Cybercab-related item we’ve seen in the app. With the Robotaxi fleet launching in June, according to Tesla, it looks like they’re now adding support to the Tesla app.

What the Robotaxi interface is supposed to look like in the future.
What the Robotaxi interface is supposed to look like in the future.
Not a Tesla App

The new app API is called “rides_feedback_upload,” which seems pretty explanatory. Tesla will need to gather a lot of information on ride quality and all the little things in between. What better way than to get feedback directly from users?

While Tesla previously released prototype images of what the Robotaxi app will look like, the introduction of this API into the Tesla app leads us to believe that Tesla will utilize the current app for Robotaxi use.

Updated Service Interface

The Updated Service Panel in the Tesla App
The Updated Service Panel in the Tesla App
Not a Tesla App

Tesla has released an updated UI for the Tesla Service panel, and we have a ton of details on these changes. This new pane displays appointment details more prominently. If you have a service appointment scheduled, you’ll now see a lot more details on the main service screen. The app will now display:

  • Your current service status

  • Appointment date and time, which you can now tap on to add the event to your calendar

  • Address and hours of the service center. You can now also tap on the address to open up the location in your maps app

There’s also a new appointment details screen (the right portion of the image). This screen displays additional details that were previously unavailable, such as your transport type. The app will display whether you’ll get a loaner vehicle, demo vehicle, or something else.

There are a ton of user experience (UX) improvements in this update regarding service, including clearer language, improved UI fixes to images, and more.

Tesla has been making a lot of positive updates to the Service-related sections of the app lately, and we’re happy to see these coming rapid-fire. Tesla Service is now easier to use and understand. In the previous app update, Tesla also added the ability to pull down to update the service screens.

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