Looking at the available capacities of LiFePo4 cells, there is an overwhelming choice; 50ah; 100ah; 150ah; 272ah; 280ah; 310ah etc.
As each new higher capacity cell is available; that becomes the cell to have, and the lesser capacity cells become slightly cheaper and more readily available.
My question is about the possible future expansion of a battery bank.
Would it be better to standardize the capacity of cell you use, and what would be the ideal capacity?
My group order with Michael is for 150ah cells, which means that I can mix and match 50ah cells x 3; 100ah cells x 3 would be the same as 150ah cells x 2, and so on.
But if I used 272ah cells there is no way the capacity could be matched with other cells; OK maybe 280ah or multiples of 90ah, but you understand my point.
If for example you had a bank of 16 Lishen 272ah cells for a 48V system and wanted to double the capacity by running another 16 batteries in parallel you can only use 272ah cells.
I know that for an RV application, due to space constraints the higher the capacity the better, but for home backup which cell capacity would the members choose as a standard size for their future battery banks, or does it matter and I'm finding problems where none exist?
As each new higher capacity cell is available; that becomes the cell to have, and the lesser capacity cells become slightly cheaper and more readily available.
My question is about the possible future expansion of a battery bank.
Would it be better to standardize the capacity of cell you use, and what would be the ideal capacity?
My group order with Michael is for 150ah cells, which means that I can mix and match 50ah cells x 3; 100ah cells x 3 would be the same as 150ah cells x 2, and so on.
But if I used 272ah cells there is no way the capacity could be matched with other cells; OK maybe 280ah or multiples of 90ah, but you understand my point.
If for example you had a bank of 16 Lishen 272ah cells for a 48V system and wanted to double the capacity by running another 16 batteries in parallel you can only use 272ah cells.
I know that for an RV application, due to space constraints the higher the capacity the better, but for home backup which cell capacity would the members choose as a standard size for their future battery banks, or does it matter and I'm finding problems where none exist?