Tesla has confirmed that its upcoming wireless charging intended for the Robotaxi is “well above 90%” efficient. While wireless charging for smartphones tends to be about 70-75% efficient in general, a lot of the inefficiency comes from heat and alignment issues.
Tesla appears to have tackled both of these key problems to make wireless charging efficient enough for electric vehicles. Let’s take a look at how, but before we do that, let’s take a look at SAE J2954, the wireless EV charging standard from nearly half a decade ago.
SAE J2954
SAE’s wireless charging standard was created in October 2020. Engineers from SAE and car manufacturers collaborated to build a standard that would work across all EVs. In the end, they figured out a grid-to-battery efficiency of up to 94%. The NACS connector itself is only slightly more efficient—98.55% or so, depending on the temperature of the connector, the cable, the battery pack, and the transformer. That sets a benchmark for what Tesla aims to meet with its wireless charging standard.
What were their key challenges for efficiency? Heat and alignment.
Autopark for Wireless Chargers
Tesla’s Autopark will receive special support for its wireless chargers. Autopark will automatically locate the wireless charging pad and park the vehicle in the best spot for the charging session to begin. As long as the vehicle can accurately place itself over the wireless charger, this solves one of the key issues with wireless charging. It’s not clear whether Tesla is building in any other technology to help the charger find its optimal position. In theory, magnets, like the newer Qi2 standard or Apple’s MagSafe, can help the charger lock in millimeter-perfect positioning.
Having the vehicle locate and park itself over the charger will be far easier than humans trying to accomplish the same feat without software assistance.
Heat Management
A major problem with cell phones and wireless charging is that most do not have active heat dissipation. Instead, they dissipate heat passively into the atmosphere around them. This is especially true due to the small surface area of a cell phone.
In a car, you can transfer heat efficiently to outside the vehicle or into the vehicle’s cabin if it needs heat - the heat pumps on a Tesla are 200-300% efficient at most temperatures. Conversely, on cell phones, battery heat must be limited due to the critical and heat-sensitive components (screen, chips, cameras, sensors) that are all tightly packed into the phone’s battery.
Due to Tesla’s BMS (battery management system), Tesla can keep the vehicle’s batteries and surrounding components in a much more ideal range than cell phones. The system will not only cool down batteries, but also warm them up to produce efficiency and faster charging.
The final trick under the charge mat is beam steering. In a recent patent, Tesla explained that they intend to steer the beam of wireless energy by altering the induced current across the wireless charging pad’s coils. This will allow them to solve both the alignment and heat issues.
The alignment's precision can be achieved by steering the beam into the optimal position, while it dynamically adjusts between 'cool zones' on the receiving vehicle to prevent overheating—ensuring a steady and efficient rate of charging.
Tesla has thought out the wireless charging problem pretty deeply ever since they bought out Wiferion, and this achievement has been years in the making. We’re hoping they’ll eventually bring wireless charging compatibility to the rest of the lineup. The Cybertruck itself already has the connector prongs to be retrofitted with a wireless charging adapter, and with the Model Y Juniper Refresh around the corner, what better way to prove wireless EV charging works than to include it in the world’s best-selling car?
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If you’ve got a 3D printer or know a friend who does, this article is for you. We’ve gathered some of the best 3D-printed Tesla accessories and toys for Tesla owners.
We’ll feature some utilitarian accessories for your Tesla and then cover some fun items later. The links provided are all to Prusa’s Printables website and are safe to visit and download.
As a note, mostly everything should be printed in either ASA, PETG, or ABS unless you’re planning to use them indoors. PLA won’t withstand the heat in your vehicle and will warp and break. There are some places you can use PLA without a worry, though, so we’ve gone ahead and made recommendations for each item.
Car Charging
Not a Tesla App
First on our list is a wall-mounted cable organizer that also fits the NACS adapter right in. We recommend using any filament for an indoor mount, but if you’re mounting outdoors and exposed to the sun, ASA or PETG are better choices. Be sure to choose a high infill percentage to keep the organizer sturdy.
Next up is for folks who need to regularly get their cable outside through their garage door. This garage door cable protector keeps the cable from getting squished when the garage door closes.
Not a Tesla App
There’s also this great holder for your J1772 adapter that lets it fit snugly in the door pocket. Tesla actually sells this product too, but you can just print your own instead.
Once again, use ASA or PETG due to sunlight and heat exposure.
Phone and Airpods Charging
Not a Tesla App
There are other accessories that could make charging your phone or wireless headphones easier. Most Teslas feature wireless phone chargers that fit most phones. However, if you’d like to charge your AirPods or a smaller phone, it may not work out so well. You can use these adapters to charge AirPods and Galaxy Buds.
There are even spacers for Tesla’s wireless charger to help position smaller phones in the correct spot. These may work okay in PLA if you don’t leave them exposed to the sun, but PETG is a better option.
Interior
Not a Tesla App
There are also plenty of functional utilities for the inside of your vehicle. The Model 3 and Model Y have large, open vents underneath the front seats to get conditioned air into the back. This vent cover adds a grate to the vents, preventing small things from falling side. It’s applicable for either the Model 3 (non-refresh) and the Model Y, also non-refresh. Any filament will do for this since it won’t be in direct sunlight.
If you need somewhere to hang some bags, here’s a bag hook for the Model Y. You’ll need a cargo shelf mount for this to attach to. Print it in PETG or ASA.
There’s also a variety of console trays to pick from. The author personally uses this center console tray with a J1772 slot, and this second one as the other console tray. If you’ve got a Model S or Model X instead, this console tray would work for you.
Tools & Etc.,
Not a Tesla App
One of the best tools for any owner with a hitch installed – a hitch tool. This tool makes it easy to open up the hitch cover. There are no recommendations on the filament here, but stronger is better.
Here’s another super tool if you don’t have one — a windshield washer fluid funnel. It can be difficult to fill up your washer fluid without spilling, so if you don’t already have a funnel, this could be a good option. You can print this in PLA and just leave it in the frunk, as even a little deformation won’t matter.
Not a Tesla App
Wheels
Not a Tesla App
If you have Tesla’s Aero covers but don’t use them year-round, this is a nice accessory to hang them on the wall. There are also other accessories to cover up the Aero center cap and lug nuts when you do use them. You can print the hangers in PLA, but you’ll absolutely want the center caps and lug nuts in ASA or ABS.
Fun Stuff
Not a Tesla App
Ok, now on to all the fun stuff. There are a ton of different Tesla models to print. There’s an RC Cybertruck (best in ABS) and a Cybertruck model kit card (PLA). If you’re up for something in between, you can check out this model kit instead, which bridges the gap.
There’s also a lot more available on Printables (or your site of choice) than the ones we’ve highlighted here. This is just a small tidbit of some of the cool and unique stuff that’s available.
If you have some other awesome ideas or have designed something yourself, let us know on social media.
Another Tesla update has finished rolling out to the fleet and we once again have a list of undocumented features in this update. Tesla update 2025.2 was the first update of the year and it brought along features such as wiper improvements for the Cybertruck, support for the cabin radar, and third-party charger preconditioning.
However, other changes made it into the release as well but weren’t mentioned in the release notes. If you love following Tesla software changes or just want to be aware of all changes in your vehicle, these will help keep you updated.
Autopilot Warnings
Tesla has now carried over some of the updated warnings from FSD to regular Autopilot.
Warnings such as “Autopilot will not brake” when the accelerator pedal is actively pressed and others will now be presented at the top in a translucent rectangle, instead of near the bottom, where they can be easily missed.
Supercharger Notification
Not a Tesla App
After using a Supercharger, your vehicle will now display a notification with the total cost of the charging session. In addition to the cost, the alert will also display the location, total energy added, and the cost per kW/h.
This is a really nice addition as it brings the price of the charging session front and center when it matters most — as soon as you’re done charging. Previously, you could navigate to Controls > Charging to see the cost of charging.
Recommended Tire Pressure
Not a Tesla App
The Tire Pressure card on the Model 3 and Model Y will now show you the recommended tire pressure in the bottom left corner of the card. It continues to display the tire pressure reading for each wheel.
Service Mode
Max Bracco / X
As usual, Service Mode sees several improvements to make serving your vehicle easier.
Brake Burnishing: The Brake Burnish procedure parameters have been updated to reduce the need for coming to almost a complete stop during each cycle.
Legacy Model S and Model X only.
Charge Port Calibration: The charge port door calibration routine (PROC_CP_X_DOOR-SENSOR-CALIBRATION) and charge port latch calibration route (PROC_CP_X_LATCH-CALIBRATION) have been added to the Charging panel. Those routines are required to be run following the replacement of the charge port or charge port door.
All Model 3s and Model Ys.
Signal Viewer Panel: A new Signal Viewer panel is available to monitor multiple signal values live on a graph. If one or more of the signal values is unavailable, the graph will stop updating. To access the new panel, tap Tools > Signal Viewer.
Noise Recording Panel: To improve the user experience, the recording duration has been decreased to 30 seconds, and reliability of the download routine PROC_ICE_X_FETCH-DIAGNOSTIC-AUDIO-RECORDS has been improved.
Cybertruck only.
Next Update
If you want to read about the official changes in this update, check out our release notes for 2025.2.
Tesla has now started pushing software update 2025.8, but it’s currently only going out to a very small segment of vehicles. It’ll soon go out to more owners in larger waves, but if you’re interested in seeing what’s coming take a look at our 2025.8 update release notes and the undocumented features we’re aware of so far.
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