hi all, software update failed so i returned the units to pylontech in the uk this was late 2024. They upgraded all 4 to the same version.
I ddint use them for around 3 months and sold 2 of the units ( originally had 4). I started up the remaining 2 last week both had less than 10% charge, one was on software v2.2 and one had reverted back to v1.8. I am going to sell both of these on now as have moved to a seplos kit. Would you update the v1.8 to v2.2 or leave as is. I charged them both to around 90% today with no issues. One is sat on 90% and one on 92% going to leave them connected and on tonight to see if they will balance out. I havent tested them by discharging them. Does anyone have the files that i would need to upgrade to v2.2