offpist wrote:Yes, but now I am using almost 1,5 battery pack, total of 70 modules.
As others have said, very impressive.
offpist wrote:Each module has two cells, so its only 7 modules in series and 6 in paralell.
Then I can use 42 of the 48 modules from the battery pack.
I'm wondering about the parallel / series connections for the new setup with 70 modules.
And, at least with lead acid, it is undesirable to have parallel connections. Are these cells able to remain balanced with so many parallel cells? And what would be the maximum number that could be connected in parallel? Or would it be better to parallel two 48V packs, with their individual pack cells of 6 parallel?
Has the monitoring showed that cells are remaining balanced over time, or are they needing to be balanced on a regular basis? I ask because there is a debate on another forum about whether LFP cells need a battery monitoring system or not when used in solar PV installations. And of course, the Nissan cells are a different lithium chemistry.