The conclusion I think I get, out of all that has been said so far:
@Louisvdw driver, now that we know we can stop the charge at any SOC we want, is a huge win.
What @Stanley mentioned about large amp BMS’es and FET’s and the challenges with that, something to keep in mind.
@plonkster feedback overall and his suggestions/advices.
@Phil.g00 throwing a curve ball of 18 x 280ah cells
@Gman and what he sees “others” do in their R&D
I think we need to take what we know so far, are ordering in, and master it.
Methinks, setting these large AH banks, any bank for that matter, to run between 20/80/20/80 SOC, giving the BMS more than enough “headroom” to do its thing IF there is an issue, with the 20/80 SOC supposedly further opening more opportunity for a much longer cycle life, is a whole new world we are opening up.
And IF we/I find that this latest model JBD BMS must really REALLY still have separate Charge/Discharge ports, then we source another brand on Alibaba, much cheaper than AliExpress. BMS’s are not that expensive if one imports wisely.
Also, I’m keeping in mind, with all the back and forth with JBD the last few weeks having had to explain why we would like to have the ports separated, MAYBE they picked up on that and make one.
All the above assuming no one comes up with a clever idea to split the charge/discharge with what we have, like using one BMS for charging, a 2nd one for discharging, by using the settings, of which JBD has a lot of.
Is that a good summation?
Did I miss anything?