I am building a 560ah battery using 16 280ah 3.2 cells.
My initial path was to build two 280ah 24v batteries using 2 8s BMSs, and then putting them in parallel.
In talks with someone, I was advised that this in not the way to build it. They said first build up the 560ah cells by putting pairs of the 3.2 in parallel, then series them to gain the 24 volt and using a single BMS. I questioned attaching a single BMS to the doubled up cells. The answer was that if I am using grade A cells that are properly balanced, it is a non-issue.
So, is it?
My draw is going to be heavy.. running computers, mini split, and was aiming at a 200 Amp DALY 8s BMS.... now I am not so sure... the advice was that .. parallel cells to gain AmpHours and then put in Series to gain voltage, versus putting in series to gain voltage and then parallel to gain amphours.
What say you?
My initial path was to build two 280ah 24v batteries using 2 8s BMSs, and then putting them in parallel.
In talks with someone, I was advised that this in not the way to build it. They said first build up the 560ah cells by putting pairs of the 3.2 in parallel, then series them to gain the 24 volt and using a single BMS. I questioned attaching a single BMS to the doubled up cells. The answer was that if I am using grade A cells that are properly balanced, it is a non-issue.
So, is it?
My draw is going to be heavy.. running computers, mini split, and was aiming at a 200 Amp DALY 8s BMS.... now I am not so sure... the advice was that .. parallel cells to gain AmpHours and then put in Series to gain voltage, versus putting in series to gain voltage and then parallel to gain amphours.
What say you?