Evening, just installed a fully charged Fogstar seatbase 230 with a blue sea mrbf fuse holder and blue sea fuse. I’ve gone to power up the system and nothings switching on from it. I’ve looked at the app and there’s 98% capacity and no error messages or anything on the log. I've put a multimeter directly on the battery battery terminals and it’s reading 2.4 volts. Any thoughts would be appreciated.