Stray electrons

[Moosewood]

Hi Tugnuts.
New to ownership and have a 2020 R-23OB.
Installed a Victron SmartShunt and noticing a draw of about .4 amp with everything off. (Batteries all off)
I imagine the SmartShunt draws a little bit are there other items on the hot battery bus that is constantly monitoring things like bilge levels that used some energy? Is this amount of current normal?

 

[Maggie Anne]

Bilge pumps are direct wired. Safety devices (CO2 monitor, Propane detector). Possibly some items that need power for memory

 

[venajeff]

Welcome to the parasitic loads rabbit hole.

 

[Maggie Anne]

Also, all of these items will have fuses so you can start by pulling them to verify which ones are creating the loads. Of course, don't forget to put the fuses back when done.

 

[Submariner]

Hi Tugnuts.
New to ownership and have a 2020 R-23OB.
Installed a Victron SmartShunt and noticing a draw of about .4 amp with everything off. (Batteries all off)
I imagine the SmartShunt draws a little bit are there other items on the hot battery bus that is constantly monitoring things like bilge levels that used some energy? Is this amount of current normal?

Nominal draw on the R27-OB is about 11-18 watts. CO detector, Propane leak detector, 2 bilge pumps auto-sensor, the N2k bus, and the battery monitor. Shut all that off (most are on the 24x7 fuse block) and you'll get to 0.