Per the article, the issue is with recalled batteries that are going to take 18-24 months to be replaced that won't allow the bus to charge pas 75% or below 41 degrees and because of the risk of fire and lack of suitable fire mitigation equipment, can no longer be charged in garages. Not seeing any mention of an issue with the underlying technology.
dlcarrier|11 days ago
Also, recalls in lithium cobalt batteries are much, much more common than they are with other battery technologies, which is an issue inherent to the specific technology used for those batteries.