Tesla's 'Battery Day' is a dud; stock tumbles

Elon Musk failed to roll out the most-anticipated product.

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This article was originally published on Fool.com. All figures quoted in US dollars unless otherwise stated.

Followers of Tesla Inc (NASDAQ: TSLA) were eagerly anticipating the company's much-hyped 'Battery Day' on Tuesday, expecting news of major developments in the electric-car maker's signature technology. What they got was a list of upcoming improvements and promises that may pay off one to three years down the road.

Disappointed shareholders began to question the company's lofty valuation and sold off the stock. By 11.53 am EDT Wednesday morning, Tesla's shares were down more than 9%, dropping below $400 for the second time this month.

What was announced...

Tesla CEO Elon Musk, who loves to talk at length about vehicle technology, outlined a number of upcoming improvements to the company's battery tech, including:

  • Eventual in-house manufacture of battery cells, currently sourced from Panasonic, resulting in reduced battery costs and fewer supply issues.
  • "Tabless" batteries, which will increase cars' range by 16% and boost cars' power by an estimated 600%, while reducing cost per kilowatt-hour.
  • Construction of a new North American cathode plant, which will reduce supply chain costs.
  • Reductions in scarce metal nickel and removal altogether of conflict mineral cobalt from Tesla's battery cathodes.

But the two biggest announcements were only tangentially related to batteries: the 2021 release of the $139,900 Model S "Plaid," featuring the souped-up Plaid powertrain, and a goal of introducing a $25,000 Tesla model in three years. 

...and what wasn't

There was no mention of the much-anticipated "million mile" battery technology, which would represent a significant upgrade to Tesla vehicles' expected battery lifespans. There were also no major surprises, since gradual technical improvements and cost reductions were already widely expected and, arguably, priced into the automaker's stock. 

In other words, the main reason "Battery Day" fell flat was that it didn't really improve the thesis for buying the stock.

This article was originally published on Fool.com. All figures quoted in US dollars unless otherwise stated.

John Bromels owns shares of Tesla. The Motley Fool Australia's parent company Motley Fool Holdings Inc. owns shares of and recommends Tesla. The Motley Fool Australia has no position in any of the stocks mentioned. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy. This article contains general investment advice only (under AFSL 400691). Authorised by Scott Phillips.

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