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Many sources online say those are the batteries that Tesla uses. Panasonic NCR18650Bs, and before that, Panasonic NCR18650As. Same as you buy on Amazon. This g

• mikeash 11y ago
  What sources? A brief search turns up some speculation but nothing that appears at all informed, although I certainly could have missed it. I'm not surprised capacity is similar to what you'd find off the shelf, but I'd expect chemistry to be tweaked to account for the different environment and much higher need for longevity.
  • steve19 11y ago
    There has never been any indication they are using anything other than standard cells. These cells are produced for loads of industrial and consumer uses. The chemistry is well known. http://news.panasonic.com/global/topics/2011/6971.html http://news.panasonic.com/global/topics/2011/6971.html http://www.greencarreports.com/news/1084682_what-goes-into-a-tesla-model-s-battery--and-what-it-may-cost http://www.greencarreports.com/news/1084682_what-goes-into-a...
• Animats 11y ago
  Of course they're Panasonic. Tesla's battery factory is really a Panasonic cell plant, with Panasonic employees, plus a packaging plant which assembles the cells into Tesla's packs.