Currently we have 640w of solar going to an mppt controller, in parallel, which goes to a 200ah lithium battery via a fuse hub.
Have just added 2 x 100w solar in parallel using victron 75/15 smart controller directly to battery.
We a drifter monitor which reads battery soc and amps etc of original 640w but does not include victron input. We think this is because its all linked to the fuse hub.
Our question is if we run the positive battery cable from controller to the fuse hub, can the negative be left directly on battery, or, does it need to go to fuse hub as well ?
Hopefully we can then get readout of combined input.
Any help appreciated