Can RJ45 communication cable from a freedom lite battery 15/12 be connected directly to a victron MPPT controller 150/100 and also directly connected to a quattro inverter? meaning the two CAN ports on the battery is used up and without an intermediary GX device.
No; the Quattro is VE.Bus, not VE.Can at all, and interfacing a 3rd-party Canbus BMS with a Victron system requires a GX device, as noted at the top of the Victron Communication Centres page.
Refer to the manual for your set up before an expensive mistake is made.
https://www.victronenergy.com/live/battery_compatibility:freedomwon
