Im driving a Zoe whilst my SR+ is in for crash damage (truck reversed into parked M3)
Strangly you can't set maximum charge level. It just charges to 100% and its a Li-NMC battery that has a warranty of <75% in 8 years!
It seems Tesla are behind on some EV things...
Maybe the Zoe has a big battery buffer and what shows as 100% is really more like 90%.