I think anyone who assumes that is almost certainly wrong.
My point to you was turning off the
solar controller is probably for the majority of folk the WRONG thing to do as it is quite feasible and entirely likely they will harvest enough each day to recover the self-consumption of the
solar controller. If off they will get nothing; if on, they would (unless they are parked in an alleyway like Barry) likely see a net gain.
I just had a look at my numbers and in January 2022 I averaged 102Wh/per day. Pretty crap really, but I am in Scotland, parked north of a tall house in a month where the days are very short. But if all I need to cover the self-discharge of the
Solar Controller is around 6W/h Day, I am easily covered.
Most people do not live in in Scotland (90% of the population don't) and don't have
solar panels in shade most of the day, so in a better position than I. So unless you know you are in a location where it is not possible to get
solar (such as parked in an alleyway or under cover), I still say DO NOT TURN YOUR CONTROLLERS OFF
Harvesting enough to charge the batteries is an entirely different matter.