Hi. I have a Lifepo4 battery, with inbuilt BMS. I have connected the battery, a load, and I am using a bench PSU to sub for a panel, With the PSU voltage at 15v, the battery state is always at 'off' and never charges. What am I doing wrong? I have set the battery to lifepo4 in the settings, and the panel always shows as 0 in the graphic on the status screen. Many thanks Steve