Tesla CEO Elon Musk warned that whatever new revelations come out of Battery Day, any new tech won’t be implemented on a mass scale until 2022.

After months of hype, Tesla’s long-awaited Battery Day is finally here; however, regardless of what’s unveiled or hinted at during the event, CEO Elon Musk has already warned it won’t show up in a vehicle until 2022.

Musk, who seemingly decided to have Battery Day while answering questions during a quarterly call, tweeted the disclaimer of sorts a few days ago. The upside is that any new technology is going to impact its newest product offerings.

“Important note about Tesla Battery Day unveil tomorrow. This affects long-term production, especially Semi, Cybertruck & Roadster, but what we announce will not reach serious high-volume production until 2022,” Musk tweeted Monday.

(Tesla stock craters overnight, rebound uncertain.)

He also noted that the company will increase its battery cell purchases from Panasonic, LG Chem and CATL and even other producers. Musk acknowledges that with the increased number of companies rolling out new electric vehicles, that demand is going to outstrip supply.

“… even with our cell suppliers going at maximum speed, we still foresee significant shortages in 2022 & beyond unless we also take action ourselves,” he tweeted.

Musk added that scaling up new technology, such as improved batteries and cells, is tough sledding so it’s unlikely to find its way into existing vehicles, like the Model 3 and Model Y.

“The extreme difficulty of scaling production of new technology is not well understood. It’s 1000% to 10,000% harder than making a few prototypes. The machine that makes the machine is vastly harder than the machine itself,” he tweeted.

(Tesla raising $5 billion by selling stock after 5-for-1 split.)

The speculation about what’s coming has been raging for months, and TheDetroitBureau.com has a few suggestions about what information may to be rolled out to investors, analysts and interested observers later today. Here is a sampling of what may come to light during Battery Day:

  • Million-mile battery: Musk has been touting this for some time now, saying just a few months ago the company was close. General Motors officials also revealed the old-school maker was closing in on the same. Musk does like a challenge and beating GM to the punch would be at the top of the agenda, if it could be done, to reveal today.
  • Larger individual cells: This is the much-speculated about “Roadrunner” cell that could help the company in a couple ways. Although larger cells don’t seemingly allow for design flexibility, they do actually provide more bang for the buck, in terms of efficiency, when it comes to power output. This means fewer cells are needed and could result in gains in terms of the space needed to house batteries. It also contributes to the million-mile battery.
  • Building more batteries in-house: Although Musk said they’ll be looking for more battery cells from other suppliers, there seems to be a feeling that the EV maker would be looking to move more of the final battery production in-house.

(Tesla reports $104M Q2 profit; fourth consecutive quarter of profits.)

It’s also likely that some “non-battery” news will come out of the event, specifically updates on the Gigafactories in Berlin and Austin, Texas, as well as updates on the aforementioned Cybertruck, Semi truck and, maybe, the next-gen Roadster. Regardless of what news does finally come out at the event, Musk promised last week, “It will be very insane.”

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