I think i should have opened this in the tech part of the forum .... sorry admins :-)
Anyway :-)
@ependydad : great video, what exactly are you running on your batteries ? and ins't 1000W inverter too small ? i can imagine, you draw much more ?
As per battery bank, i am coming from sailing yachts world and we have in our charter flotila most boats with 2x starter battery for engines/generators and banks of 4 house batteries (deep cycle marine batteries usually 120Ah each) hence the term battery bank, if its wrong "terminus technicus" i do apologize ;-)
This setup usually gives me about 4-5 days on quiet sailing if i only use the electronics and navigational/living quarters lights and have small fridge running. If i go smaller i would have to run engine every 1 or 2 days ti charge batteries