I have a question i'm sure you can answer. I have a brand new Mercedes sedan I use for a limo service and I am hooking a 2KW PSWave inverter to. I am using a separate 12 Volt AGM battery source to run minimal applications and at the end of the day I'm using a 7.2 Amp Noco smart charger to top off the power I used throughout the day. My question is I'm not sure if grounding the inverter to the chassis is the right way to go when I'm not using the car battery that relies on everything to be grounded and thought it could mess up the cars factory ground?
I was thinking just to wire all Neg and Pos directly to the battery and was considering wiring the inverter ground also back to the negative battery to not interfere with the cars main power source/ground?
Could you please help advise me BB.