As per the title above. I searched through the excellent Victron Wiring Unlimited guide and here in this forum, but couldn't find an answer.
Just to make it clearer, I say it's a ''dedicated" battery because it's completely separated from the vehicle's pre-existing battery system, and it's connected only to the Victron inverter (with separate 70mm2 cables) and to my PV charge controller.
Thanks in advance for your help.
What is the point if your inverter and inverter battery is separate from the RV electrical system?
The PV Charge Controller plus the inverter plus the separate battery bank they are connected to, constitute a separate system dedicated to 220VAC.
Now that (I hope) this is clarified, can we please get back to my original question? ;-)
It seems that the two of you agree that there is no real reason to connect the inverter battery negative to chassis in favour of keeping the two systems separate.
1) on the system I've described above, both the inverter and the PV Charge Controller are grounded, using their specific ground terminals, to the vehicle's chassis. This was done in accordance with their installation manuals and is not in doubt.
2) my only doubt is whether I should *also* connect, to the same chassis grounding point, the negative pole of the battery bank (this of course in addition to the normal 70mm2 battery cables that's already connecting the battery poles to the PV Charge controller and the inverter).
So, can you (or anyone) help me answer #2 above?
If the systems need to share the chassis negative then you should bond the house battery negative to the chassis.
Examples of this may be:
Alternator charging from the vehicle with a common negative B2B charger?
Are there any circuits which are fed from the house battery whose negatives are also referenced to the chassis negative?
You would know the answers to those sort of questions, so that is why previous answers are open ended.
