What Fuse size for Victron 12/800/35 running 2 x 150aH Leoch AGM batteries (in parrallel)
I want to ensure I have protection on red battery wire is a fuse required?
I have also set dip switch 2 to on is this correct. Charger and Alarm light did not flash when I switch dip switch 6 on and off as manual states
A fuse is a good idea. Ensure the wires are sized correctly and the fuse is appropriate to protect the wiring.
Use this chart to figure out the wire sizes for different lengths. Your inverter will draw 65A at full load, so cabling and fuse for 80A should cover you for surges too.
https://www.victronenergy.com/upload/documents/BatteryCables.pdf
Set DIP switch 2 is OK, this setting is default so it is probably loaded anyway, but it is DIP switch 8 that stores the settings, not DIP switch 6.
