Tesla Roadster Batteries Are Failing, Revealing End Of Life Symptoms

25 Mar 2023 | Abstracted from Inside EVs

"In 2016, Tesla began offering Roadster owners a larger, upgraded battery pack...fitted with upgraded 3.2 amp-hour 18650 cells compared to the 2.2 amp-hour cells used in the original packs.

"Gruber concluded a "cell quality issue" was the root cause of the packs' failure...they theorize the upgraded packs sold between 2016 and 2019 were produce in the same production run and may deteriorate like this regardless of whether they're frequently in use or sitting in a garage."

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