That requires a 2.7 Ah rechargeable battery to power the module for 24 hours. Of course, to account for winter days or when there is bad weather, I decide to triple the capacity of the battery to 9Ah (which I decide to use 12V 3S Li-ion since I have some around) ...
Higher capacity battery packs require longer charging times, if you’re using current-standard chargers. A 6.0Ah will in theory take twice as long to charge as a 3.0Ah battery pack, which means a 2-hour wait. Bosch is coming out with a fast charger in Europe that can drop 6.0Ah chargi...