There is no evidence that keeping a Zoe at a lower charge level helps the battery.
The Zoe is nowhere near as harsh as Tesla on its batteries - energy output and charge rates are lower. It also doesn't let you use the full capacity of the battery to help protect it. It also has had active battery heating / cooling from the air con system from day one (unlike some other manufacturers).
On keeping plugged in, you can pre-condition a Zoe to get it ready to drive. Doing this using mains electricity will save battery capacity.
Zoe is designed to be simple and do the work for you.
The Zoe is nowhere near as harsh as Tesla on its batteries - energy output and charge rates are lower. It also doesn't let you use the full capacity of the battery to help protect it. It also has had active battery heating / cooling from the air con system from day one (unlike some other manufacturers).
On keeping plugged in, you can pre-condition a Zoe to get it ready to drive. Doing this using mains electricity will save battery capacity.
Zoe is designed to be simple and do the work for you.