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Elon Musk posts Tesla Battery Day update, hints at mid-May event
Those who have been waiting for Tesla’s 2020 Battery Day will now have to wait a little longer. Tesla CEO Elon Musk announced that the event would “most likely” take place in mid-May, roughly one month after its originally intended date. “Hard to predict dates right now. Most likely postponed to mid May,” Musk wrote on Twitter as a response to a Tesla community member asking about the event.
The reason for the delay in the event seems to be related to the COVID-19 pandemic. This virus has halted production lines in Fremont and Buffalo and has caused the company to adapt to new delivery processes to deliver new electric cars to their customers. Considering that Tesla events usually involve presentations to groups of people, Battery Day may involve viewers being packed in a large room. Such does not conform to current social distancing suggestions to prevent the spread of the virus.
Tesla’s Battery Day will outline the company’s plans for battery development for future vehicles and energy solutions. Musk stated the event would be geared toward a review of Tesla’s cell chemistry, module and pack, architecture, and the company’s manufacturing plan that will detail how it can reach a terawatt-hour per year of battery production. “We have a very compelling strategy. I mean, we are super deep in cell. Super deep. Cell through battery,” Musk said.
Hard to predict dates right now. Most likely postponed to mid May.
— Elon Musk (@elonmusk) April 9, 2020
Tesla’s ultimate goal with its cars is to reach price parity with its gas counterparts as soon as possible. Battery improvements would decrease the cost of vehicles tremendously, as the production of battery packs is one of the most expensive stages in EV manufacturing. Expectations suggest that Tesla has gotten its battery costs down to $100 per kWh, and Battery Day was widely speculated to be an event that discusses such a milestone.
Tesla has crafted a relationship with many cell manufacturers across the world, like Panasonic, which supplies the company’s lithium-ion vehicle batteries. In China, LG Chem and CATL are responsible for the task. The company has also made several acquisitions of battery research companies whose technologies can improve the quality of cells in the long term. One of these companies is Maxwell Technologies, whose research with ultracapacitors and dry electrode technologies could very well improve Tesla’s batteries in terms of quality and longevity.
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This could lead to the development a “1-million mile battery,” which Tesla has predicted for its vehicles in the future. Researcher Jeff Dahn, a world-renowned battery specialist whose team at Dalhousie University, says that a battery capable of 1-million miles is more than feasible. This battery goal is attainable, especially considering the Dahn team’s development of pouch cells that have extended life.
Tesla held a similar event in 2019, called “Tesla Autonomy Day,” that outlined the company’s plans to complete its Full Self-Driving suite. However, it seems Tesla’s plans for 2020 are primarily focused on battery and energy storage, starting with Battery Day.
Fremont and Giga New York are poised to reopen on May 4, ending an over one-month shutdown. It is safe to assume that if this date is pushed back into late May or even early June, Battery Day could once again be delayed to ensure the safety of its attendees.
Tesla Energy has introduced the Powerwall Lease in conjunction with Tesla Electric, making the service available in Texas. This new option delivers whole-home backup power using two Powerwall units for a net monthly cost of $35 after credits, accompanied by a low fixed electricity rate.
Under the lease terms, customers pay a one-time order fee of $100. The base lease payment for the two Powerwalls is approximately $122 per month during the first year, subject to a 3 percent annual escalator thereafter. Enrollment in a qualifying Tesla Electric Backup plan or Virtual Power Plant plan provides an $87 monthly credit.
Powerwall Lease is now available with Tesla Electric in Texas
Whole-home backup for $35/month, with a low fixed electricity rate
– Two Powerwalls, $0 installation
– Storm Watch outage protection
– One app to manage it all pic.twitter.com/oTzqc6K3aF— Tesla Energy (@teslaenergy) August 13, 2026
This credit lowers the effective cost to roughly $35 per month plus applicable tax.
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Installation of the standard system carries no additional charge. The package features Storm Watch for outage protection and allows complete management through a single Tesla application. The system supplies continuous whole-home backup capability.
The Powerwall system enables households to maintain electricity during severe storms that disrupt the utility grid. When outages occur, the batteries automatically provide seamless backup power to the home.
Tesla announces 100k Powerwalls are participating in Virtual Power Plants
Tesla Storm Watch monitors weather forecasts and ensures the units are fully charged ahead of anticipated severe weather events so that power remains available throughout the disruption, keeping lights, refrigeration, and other essential systems operating without interruption.
Availability is restricted to select Texas locations where retail electric choice exists. Participants must lease exactly two Powerwall units and maintain continuous enrollment with Tesla Electric. Solar panels cannot be included under this particular lease arrangement.
The monthly credit activates automatically once the system is installed, receives permission to operate, and enrollment is confirmed. To retain the credit, customers are required to stay enrolled in Tesla Electric and fulfill all program conditions.
Nonstandard installations that involve electrical upgrades or special permitting may lead to extra expenses and might impact eligibility for the credit, so be sure to check with either your installer or Tesla to ensure you will still qualify.
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Elon Musk continues to tease the unveiling event for the Tesla Roadster, a continuing trend that has grown into a bigger game of “When” for fans who have been waiting years for the car to finally enter production.
A video shared on X of the Joe Rogan Experience podcast that Musk appeared on last year, teasing the Roadster unveiling, was shared once again on the social media platform. The poster said the Roadster event will be “unforgettable.”
Musk agreed:
Yes
— Elon Musk (@elonmusk) August 12, 2026
The timing is interesting because just yesterday, Musk said that we will be getting flying cars, and for years, Tesla has hinted that it could develop a SpaceX cold gas thruster package that would help the car float or fly for a short period of time.
It would be reasonable to assume Tesla’s major delays with this unveiling event are likely caused by the company’s need to break the rules and push the envelope on nearly everything. Last July, Lars Moravy, Tesla’s VP of Vehicle Engineering, said:
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“Roadster is definitely in development. We did talk about it last Sunday night. We are gearing up for a super cool demo. It’s going to be mind blowing. We showed Elon some cool demos last week of the tech we’ve been working on and he got a little excited.”
The latest updates that Tesla has given us are that the Roadster is in design development, and it did have several potential dates for an unveiling event this year, including April. It was then pushed to August.
However, there are no clues as to when Tesla will be ready, and fans are certainly getting frustrated with the delays.
For what it is worth, Franz von Holzhausen told Jay Leno this week that the event would be “very soon.”
We sure hope.
Lifestyle
Tesla’s driverless Cybercab just passed a big test with State Governor
Florida’s governor rode Tesla’s Cybercab at a closed test track and called the experience impressive.
Florida Governor Ron DeSantis rode in a Tesla Cybercab on a closed test track this week and came away impressed, posting on X that the vehicle “successfully navigated all hazards — a kid running into the street, a crash with police stopping traffic, a Model S cutting us off, etc.” He called the ride “impressive.”
The stop was part of a broader event Monday at SunTrax, a 775 acre state owned proving ground in Auburndale that Florida built specifically to test autonomous and connected vehicles before they reach public roads. Standing next to a gold Cybercab, DeSantis described the car in plain terms: “You go in there and you just sit. You have a screen. There’s no steering wheel, no pedals. Clearly these things could be very beneficial.”
We took a ride on a robotaxi on the Suntrax course and it successfully navigated all hazards — a kid running into the street, a crash with police stopping traffic, a Model S cutting us off, etc.
Impressive! https://t.co/FVAkzFLz3r
— Ron DeSantis (@RonDeSantis) August 11, 2026
DeSantis paired the praise with a caveat that has followed autonomous vehicles since the category existed. “You don’t want to be in an autonomous vehicle and it drives you into a ditch. That would not be good,” he said, framing safety validation as the gate before wider deployment.
SunTrax, the 2.25 mile oval which the state calls the only high speed autonomous vehicle test track in the Southeast, can simulate rain, pedestrian crossings, hills and crowded urban conditions at highway speeds, letting companies push a car past what an early public rollout would risk. Tesla, Waymo and Beep all use the facility, and Florida’s regulatory approach, among the most permissive for autonomous vehicles in the country, doesn’t require a human operator inside a fully autonomous car.
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Tesla has reason to want the blessing of Florida and states beyond, as the Cybercab entered volume production at Gigafactory Texas this spring and has since self certified as SAE Level 4 under Texas law. Public road testing so far has kept a safety monitor in the passenger seat, and Florida is where Tesla has been expanding its existing Model Y based Robotaxi service instead, adding Miami in July and then Orlando and Tampa two weeks later. A closed track endorsement from a sitting governor doesn’t change any of that, but it does put Tesla’s newest hardware in front of a state that has already shown it will move fast on rules.
Tesla launches Powerwall Lease for affordable home backup
Elon Musk teases Tesla Roadster unveiling once again
