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A Cybertruck Owner Claims Tesla Replaced His High-Voltage Battery Pack, Saying “It’s Needed for an Engineering Research Initiative” – Adds, “There Was Nothing Wrong With My Cybertruck Except the Wireless Phone Charger”

A Cybertruck owner says he contacted Tesla about a minor issue with his wireless phone charger; however, the EV maker ended up replacing his high-voltage battery pack, explaining that his current pack was needed for an engineering research project.
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Author: Tinsae Aregay
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Ferrara, a Cybertruck owner from Pennsylvania, says he recently contacted Tesla about a minor issue with his truck, but Tesla unexpectedly replaced his battery pack.

Ferrara initially reached out to Tesla because the wireless charger in his truck, which he uses to charge his phone, was not working properly.

The wireless charger overheating problem in the Cybertruck is not exclusive to Ferrara’s truck and has been frequently reported by numerous other Cybertruck owners.

After reports surfaced that Tesla has created a new wireless phone charger that solves the overheating problem, Ferrara contacted the Tesla service center to request a replacement part.

Because the problem was minor, Tesla initially sent a mobile service technician to replace Ferrara’s wireless phone charger.

However, according to Ferrara, the situation escalated—the mobile service appointment turned into a five-day visit to the Tesla service center.

While at the shop, Tesla removed his high-voltage battery pack and replaced it with a new one.

Ferrara says that before Tesla decided to replace his battery pack, he hadn’t experienced any battery-related issues with his Cybertruck.

Ferrara attests that his Cybertruck’s range did not show any discrepancies, and his vehicle was charging perfectly fine.

So why replace a perfectly functioning battery pack? According to Ferrara, Tesla explained that the major service was necessary because his high-voltage battery pack was needed for an “engineering research initiative.”

This is certainly unusual, and the confused Cybertruck owner shared his story on the Cybertruck Owners Club forum.

He writes…

“I saw on this forum that Tesla has a new component designed to prevent phones from overheating when on the charging pad.

I scheduled an appointment that was initially a mobile service visit but later changed to a five-day in-person event, during which Tesla replaced the high-voltage battery pack in my 2024 AWD Cybertruck.

I'm not complaining about getting a new 800-volt battery pack, but the circumstances feel strange.

Nothing was wrong with my Cybertruck. The range was fine, and charging seemed normal.

When I spoke with Tesla, they said the reason for the high-voltage battery pack swap was an engineering research initiative.

I'm still confused about what this could have involved, and I'm worried it might be related to damaged battery cells.

Have others experienced this as well? Attached is a photo of the work order.”

Below his post, Ferrara included the service report he received from Tesla after the EV maker replaced the high-voltage battery pack on his Cybertruck. 

The report states:

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Concern: Cybertruck - High Voltage Battery Replacement

Repair Notes: The vehicle required a high-voltage battery pack replacement as part of an outstanding work order. The replacement was proactively performed following an engineering study. The high-voltage battery was removed and replaced.

Correction: HV Battery (AWD) - Remove and Replace

Parts Replaced or Added:

Part: HIGH VOLTAGE BATTERY, LONG RANGE (1783970-TX-J)

COOLANT, ETHYLENE GLYCOL, 50/50 MIX -1 Gallon (1029320-00-A)”

A Cybertruck Owner Says Tesla Replaced His High-Voltage Battery, Saying “It’s Needed for an Engineering Research Initiative” – Adds, “There Was Nothing Wrong With My Cybertruck Except the Wireless Phone Charger”

Receiving a surprise high-voltage battery pack replacement can be unsettling; however, looking at the comments, fellow Cybertruck owners were not worried, but instead praised Tesla for proactively replacing the battery pack. 

A fellow Cybertruck owner, Mark from Alabama, writes…

“When I took delivery of my Cybertruck in April 2024, I was notified that Tesla was canceling my #VIN, which was in Franklin, Tennessee, ready for delivery.

At that time, the delivery was delayed because of the "throttle pedal" sticking issue. The truck stayed at the Tesla store for about two weeks before I was able to pick it up.

During that period, I received a notice saying, "Tesla is canceling your #VIN and a new Cybertruck is being sent in its place."

This was related to the high-voltage battery issue. I became really annoyed because I had to wait an extra two weeks, and Cybertruck fever was at its peak at the time.

Tesla technicians examined the batch of Cybertrucks delivered to the Franklin store and verified that my #VIN was unaffected. I was able to pick it up without waiting for a new #VIN Cybertruck from Austin, Texas.

During a recent visit in May for ‘recall work' and tire rotation, a ‘flex cable' related to the high-voltage battery was replaced—not scheduled, but a proactive repair I didn't expect.

I see it as a good thing. I understand your point, but Tesla is working to make our Cybertrucks as reliable and bulletproof as possible.”

Overall, fellow Cybertruck owners appear to be pleased that Tesla is providing “proactive” battery pack replacement.

However, please let me know what you think in the comments. Share your ideas by clicking the RED “Add new comment” button below. Also, be sure to visit our site, torquenews.com/Tesla, regularly for the latest updates.

Image: Screenshot from the Cybertruck Owners Club Forum. Reposted under the fair use copyright rule

For more information, check out: A Tesla Cybertruck Owner Says His Doors Are Flexing Rapidly In and Out, Creating a Wobble – Adds, “I Can See the Rapid Flexing With My Eyes and Feel It in My Hands and Knees”

Tinsae Aregay has been following Tesla and the evolution of the EV space daily for several years. He covers everything about Tesla, from the cars to Elon Musk, the energy business, and autonomy. Follow Tinsae on Twitter at @TinsaeAregay for daily Tesla news.

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Comments

Bobby McBobby (not verified)    July 12, 2025 - 11:15PM

So, NO, the headline doesn't match at all what the actual Tesla Service Workorder states.

The workorder states that the battery was replaced proactively AFTER an engineering study. Meaning Tesla fancy talk for there was either a TSB for that particular battery pack OR they ran diagnostics and determined it needed to be replaced.

How does that square with the headline "It's Needed for an Engineering Research Initiative"?


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Timothy D Parkhurst (not verified)    July 13, 2025 - 5:51AM

What exactly do l these folks want from a garbage vehicle made vlby a garbage company? We have been trying to tell them that Tesla is a garbage company and has always been! But for some reason these suckers just keep doubling doen on how great and lerfect they are.......if you really want a real $90k truck. Just buy the Dodge Ram. Nobody is crying and complaining a about them and none are being held in the shop for weeks in end to fix very minor stuff! Oh, and they won't cancel your order and send you another one when they get around around to it!

Sam (not verified)    July 13, 2025 - 12:47PM

The headline and story are misleading at best. The repair notes state very explicitly that FOLLOWING an engineering study, it was determined the high voltage battery needed to be replaced. The story (and headline) claim that the battery was replaced FOR an engineering study.

Wayne Garrett (not verified)    July 13, 2025 - 1:18PM

Tesla is lying … the real issue is faulty and failing batteries inside the battery pack …

But Tesla doesn’t want you to know that …

Michael Me (not verified)    July 13, 2025 - 1:43PM

If it is part of an engineering study. They may have wanted to perform testing and look at the condition of a high voltage battery with a particular number of miles on it. Easiest way to do this is to put a prompt in their system to replace a high voltage battery in a cybertruck that comes in for other warranty repair with xx,xxx amount of miles on it. May have had nothing to do with anything being wrong with his battery per se but he got a new battery out of the deal.

Ron Dijcks (not verified)    July 18, 2025 - 5:26AM

In reply to by Michael Me (not verified)

IT STILL warranted a contact to the customer to let him know what they were planning. The truck does NOT Belong to Tesla. IT’s the customer’s and if Tesla wants to “play” with his battery in the lab, they owed him the option to pass on the replacement. I suppose most owners would be happy to get a new battery, and I get that. My issue is about the sheer contempt and lack of consideration that they give/gave the customer in this position.

Don Woods (not verified)    July 13, 2025 - 2:11PM

I do not own a truck like u all have but have been a mechanic for over 41 years and have been following the Tesla trucks since this all started I really think it is a great thing they are doing a proud of elon musk for taking back his company and getting his head out of his a-- if u know what I mean thanks don w

Michael (not verified)    July 13, 2025 - 2:20PM

I may be a pessimist but it sounds like they got the old, better battery pack and you got the “new and improved” cheap battery pack for “no charge”

Timmy Sanders (not verified)    July 16, 2025 - 1:23AM

In reply to by Derek Washington (not verified)

Bro thats what you read?? I think you should reread. I went through this stuff with my bolt and gladly took new batteries every time it was offered, now i have 80k miles on the car and a battery that has less than 2k.

FAllen1 (not verified)    July 14, 2025 - 8:46AM

The headline told me everything I needed to know.
Tesla really did need to take that battery pack in for engineering testing. Here's how I know that: "The only thing wrong was the phone charger". If you have driven a Cybertruck more than 12 miles and the only thing wrong with it is that the cellphone charger isn't working right, then your lucky Tesla didn't replace your whole vehicle for them to study it to find out what they did right with that one because all of the rest of them are hot garbage.

Gary Borer (not verified)    July 14, 2025 - 10:25AM

What’s the issue? Was he charged for the battery replacement or? I don’t see why your spending time on this story?

Ken (not verified)    July 16, 2025 - 8:12AM

In reply to by Gary Borer (not verified)

How about the issue is that they apparently feel they can perform major repairs without authorization? It appears you don't really *own* your Tesla product in any normal sense of the word. You pay to play, but control of the vehicle is not really in your hands.
As a Tesla "owner", you're really just a renter.

Barron Deville (not verified)    July 16, 2025 - 4:07AM

The only benefit of owning any Tesla vehicle is their charging network. Otherwise a very shady company with very poor quality control.

Tyler (not verified)    July 16, 2025 - 8:51AM

I don’t work for Tesla, but do I work in the EV industry. This is normal. Could’ve been an outdated pack that was internally flagged for replacement, could’ve been a TSB, this isn’t some shady case of switcheroo like I’ve seen other people say. Pretty baseline stuff when the car has a million sensors that tell you something is failing long before it ever does

Ron Dijcks (not verified)    July 18, 2025 - 5:35AM

In reply to by Tyler (not verified)

My only issue with the way OP made it sound, is that this service was done with no notice to the owner. They just ripped the battery out and replaced it, with no diagnosis of the part being bad, or any other such explanation. At the very least, I’d want to know BEFORE the work is actually done on MY vehicle. It’s a matter of principle given the high likelihood that I’d approve the replacement, obviously…

CK (not verified)    July 16, 2025 - 4:12PM

"The vehicle required a high-voltage battery pack replacement as part of an outstanding work order. The replacement was proactively performed following an engineering study. The high-voltage battery was removed and replaced."

Outstanding work order means a past work order that was never fulfilled. So as most car companies do, Tesla fixed the old recall by replacing the battery while he was in for another service. However, typically the owner of the vehicle should be informed and consent to any work being done on the vehicle beforehand. The engineers determined that the battery should be replaced BEFORE it was removed. It wasn't removed for the purpose of an engineering research initiative, it was removed because of a design or manufacturing flaw. Of course, that doesn't mean they can't run diagnostics or stress tests on the faulty battery once it's in their hands.

Some Tesla customer service rep relayed the wrong information but either way, OP still lacks reading comprehension skills if he didn't understand what the service report says.

BAT (not verified)    July 17, 2025 - 9:30PM

I’ll never buy a Tesla as you don’t really own it. Under their terms and conditions I believe they can do anything they want to.

Ron Dijcks (not verified)    July 18, 2025 - 5:22AM

IF the battery is/was working with no issues, and Tesla for whatever reason chose, without any customer/Owner input to replace a major component of the EV, I’d be pissed.

Whatever Tesla’s reasons for the replacement, it warranted a diagnosis, a reason and a “repair” plan for the customer to approve, and then replacement. NOT, “hey customer, we just replaced your battery so we can “play” with yours in the lab”. Oh, you got to wait 5 days, too, but hey, we’re Tesla.

Erik Harakaly (not verified)    July 18, 2025 - 12:21PM

This article is online garbage. It’s clear the owner of the cyber truck couldn’t even understand what his work order said they replaced it as a safety measure following a study and he says they post. How is this news? The only thing it does is for the show that Tesla put a customer safety first and I think the media is so easy to make Elon Musk just look bad though put anything out there that calls Tesla into question . Shame on the publishers of this article . More fake news out there.