Stupid battery and solar questions
I figure I am going to have a lot of them, so I better put all in one thread :B. My situation: - I mainly want solar for running residential freezer and fridge, maybe also for charging my shave ...
Forum Discussion
Naio wrote:Yes, there are dual bank chargers Morningstar makes the Sun saver duo but it is a PWM charger. Besides, any good MPPT controller will have a "Load" function that will shunt power to another load (battery) when the initial bank is full or at your programmable discretion.
Thanks youse guys!
Can I get a controller that will charge first one battery bank, and then another one if the first gets full? Like a buitlt-in isolator?
I would suggest to start planning on your battery capacity, first. What's left over in your budget and the capacity total can help define the rest.
Have you used the spreadsheet calculator to define your daily use? Link to spreadsheet here.
For reference: I use 60 or so AH/day (conservatively). A single 235W module and a 15 amp MPPT controller charge 300AH of batteries in two banks. I have master disconnect switches to shunt power to/from everything but typically, they are always in the "Both" position, i.e. being charged and discharged in parallel.
