Nissan LEAF 2023 Owners Manual
3.2.2.2. While the vehicle is not in use
When the electric vehicle system is off for an extended time, the 12-volt battery may be automatically charged for a short period of time on a regular basis.
Owners Manual
When the electric vehicle system is off for an extended time, the 12-volt battery may be automatically charged for a short period of time on a regular basis.