Batteries self discharge. There is no system that will hold 100% charge for several days.
It wouldn't need to. It would start discharging at sunset and only stop at sunrise. And in winter it would spend most of its time discharging.
But, as I say in the post, this is a bit of fun looking at extremes.
It wouldn't need to. It would start discharging at sunset and only stop at sunrise. And in winter it would spend most of its time discharging.
But, as I say in the post, this is a bit of fun looking at extremes.