Batteries tend to have a max charge/discharge cycle. Unlike a consumer car, buses see a lot more distance. I wonder how much more quickly the batteries go.
AIUI, as EV fleets age, we're learning that it's the depth of charge and discharge that degrades batteries, not the total power throughput. Staying within 20% and 80% makes most of the difference to longevity. Additionally, they seem to degrade to about 80% of original capacity and then plateau, and are generally lasting much longer than initially expected.
Large or small operator, the recovery amount will be a tiny fraction of the overall battery pack cost. Recycling isn't free, and costs, and assemble + profit margins at both ends.
In short, you're diverting "how often" to "meh, who cares, they're recyclable", without any validation that it negates the cost.
Batteries tend to have a max charge/discharge cycle. Unlike a consumer car, buses see a lot more distance. I wonder how much more quickly the batteries go.