Am having issues with my victron Quattro inverter 48/10000/140-2x100 running firmware version 482, of late my batteries become weak but they still produce half their original energy which takes me through three quarters of the night so I configured my inverter to make use of the assistants to be able to automatically switch to pass through mode once the batteries are low instead of the system going off it switches to the grid but through the inverter without using the same grid to charge the batteries so batteries charge with solar only, the current problem am facing is that my lights keep dimming at some times yet I expect the inverter to have a stable output surprisingly it does this even in passthrough mode yet the AC input into the inverter goes through a 10KVA voltage regulator, I would expect this to happen only on batteries while in inverting mode, for some reason I used not to experience this issue when I was running a multiplus 48/5000, the issue started from the time I upgraded to the Quattro 48/10000 have tried upgrading firm still having the dimming lights issue.