Interesting Nick, but for me price is key. The whole system is subsidised from my Solar install in Greece, so replacement wouldn't be a problem.
I can charge way over 20kW of battery within my 6 hr window overnight, plus the solar during the day...I want to have the maximum amount of battery storgage I can, as I use over 40kW per day without even charging the car. Others who use Pylontech batteries say they are ok for the years theyve used them.
Every person I follow with big systems installed at home say if they could change anything it's to add more battery storage for the winter.
Cheers.