Piggy Bank The developer @frodeheg is already busy with automatically charging at low price rates, I think the mechanism is similar.
or
[APP][Pro] Power by the Hour: Insights per hour, day, month and year (feature requests) maybe. The developer @Gruijter might have an idea or two. He also developed the Sessy Smart Battery app
Imho charging a home battery at the best moments or charging a car that way is very similar?
