[Falconx]

2018 C39. On 12v DC, even with all breakers off, Prosine inverter shows I'm drawing 2-5 amps all the time.  Solar controller indicates up to 9 amps even with all appliances off. Standard wiring, brand new agm batts, 300 watt solar system installed. No ice maker. We do a lot of anchoring and the batts are always at 12 volts by morning down from 13.6 at night. Thank you if anyone has any solutions.

[Sapphire]

I assume your inverter is off (non inverting mode).  Phantom draws will be present from carbon monoxide detectors and bilge pumps as they are wired directly to DC.  Other phantom draws could be solar controller and inverter meters.