> They should have limited the charge from the beginning. No way the engineers didn’t realize deep cycling is bad for the battery.

Have you even read up on the manufacturing faults behind this? It's a cell manufacturing robot alignment problem that went unnoticed, not a deep cycling problem.

Thanks for the correction.

It's not that they were deep-cycling the cells before. Discharging lithium cells to 0 volts is very bad for them; the cars definitely restrict the cells from being discharged below a certain point. Rather, the potential for danger due to this rare, hard-to-detect manufacturing flaw is great enough that Chevy is asking Bolt owners to self-impose even tighter restrictions on how low the batteries will be discharged.