Musk: It will be Battery Day and Powertrain Day. First First

We already know that Tesla Battery Day won't take place until mid-May at the earliest. Now we also learned that the powertrains of the Californian manufacturer will not be discussed at the event - the batteries themselves are a fairly extensive topic.

Batteries and Powertrain Investor Day -> Battery Day

We have been hearing about Battery Day since 2019. As the name suggests, we expected the manufacturer to reveal some details about the latest solutions used in the company's vehicles. Tesla fans have demanded that the event be organized despite the virus outbreak restrictions to "diversify this time" and "bring some hope."

> Tesla Battery Day "could be in mid-May." May be…

There is some logic in this, but the risk was great. Even if the entire recording and all presentations could be made at the right distance, at least when Tesla prices fell, there would be a player to publicize the company's “risky behavior”.

This search for a hole in general was especially noticeable at the beginning of the restrictions: when Tesla did not close the plant because it heard that it was a strategic venture, there were voices that it put employees at risk. When she announced the closing date for the factory, voices immediately rang out that Elon Musk wanted to make the American worker hopeless (because some of them were sent on unpaid leave).

The current declaration shows that the upcoming event, Battery Day can be held in mid-May and will only deal with cells, batteries and everything related to them.... Engines, if any, are only part of the questions and answers (source). Thus, we can shorten our list of expected topics to:

cells that can withstand millions of kilometers,
higher battery capacity in the manufacturer's vehicles, for example 109 kWh in the Tesla Model S / X or even more in the Semi or Cybertruck,

> Tesla Semi with 1 kWh battery officially? [Tesla.com]