Setting up my first off-grid system at 48v nominal, and trying to figure out how to wire the batteries in.
I have 2 24v 100AH batteries, and 8 12v 100AH batteries.
I know I need to wire the pair of 24v in series with each other to make one 48v batt.
Similarly, I need to do 2 pairs of 4 12v in series to make 2 48v batts.
The part where I'm stuck is:
How to I hook the resulting 3 48v batteries up to my charge controller? Do I connect the seriealized batteries in parallel at (for lack of a better term) the "head" cell in each bank, and then connect the charge controller to the "head" cell in one of the 3 banks? I have this strange (and probably incorrect intuition) that doing it this way would put extra stress on the cell to which the charge controller is connecting. Is there a place I can look this up? Having pored through the forums here and watched all the youtube videos I can find I'm still lost on this point.
(LiFePO4 chemistry, in case it matters).
Thanks much!
I have 2 24v 100AH batteries, and 8 12v 100AH batteries.
I know I need to wire the pair of 24v in series with each other to make one 48v batt.
Similarly, I need to do 2 pairs of 4 12v in series to make 2 48v batts.
The part where I'm stuck is:
How to I hook the resulting 3 48v batteries up to my charge controller? Do I connect the seriealized batteries in parallel at (for lack of a better term) the "head" cell in each bank, and then connect the charge controller to the "head" cell in one of the 3 banks? I have this strange (and probably incorrect intuition) that doing it this way would put extra stress on the cell to which the charge controller is connecting. Is there a place I can look this up? Having pored through the forums here and watched all the youtube videos I can find I'm still lost on this point.
(LiFePO4 chemistry, in case it matters).
Thanks much!