It is common knowledge that Lifepo4 cells follow a rather flat voltage curve. If one keeps within this curve staying well clear of the top (3.65v) / bottom (2.8v), it could mean the cells last much longer than their 6000 "advertised" cycles.
So my idea is to run 18 x 3.2v 280ah cells, charged at max 3.45v (18 x 3.45v = 62.1v), as Victron can handle max 66v with the BMS also well with its max volts limits, being able to handle 20 cells.
Settings are:
BMS sees 3.45v as 100% SOC.
Min SOC of 20% / 3.2v.
My question is: Why would one not do this, why is this a bad idea?
Ps. I have tried this already with 17cells at 3.45v. It worked very well.
Pss. Whilst waiting for the new 280ah cells to arrive, I also tested using 12 x 100ah 2nd Life cells with 5 x 280ah A Grade cells as a 100ah bank. It works.