Hi there, I have a Tiara yacht i am looking to add smart shunts into for Monitoring. I am a little confused with how to best incorporate into my system. The Boat has a House battery bank with 5 12v batteries in parallel and an engine battery bank with 3 batteries in 12v parallel, both battery banks run to a common DC Ground Buss. From what ive read, i can install a smart shunt between the Neg from house bank and the buss bar and run voltage monitoring to engine bank as well to monitor both banks. Should i do this or should i install 2 smart shunts, 1 between each battery bank to the common buss bar? also the wiring schematic shows that i have 2 DC Shunts in the system currently monitoring current through the Positives for the Engine DC and House bank DC current which i can see on the ammeter in the boat. I would like to tie these into my Garmin MFD’s which i believe i will need the cerbo gx to integrate and wondering whats the best way to configure the system to see both battery banks along with current measuring. I’ve included a photo of my DC wiring schematic for reference.
Thank you in advance!!
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Hi Philippe!
In my opinion you should use two Smart Shunts for each battery bank a separate shunt.
With this you can monitor every battery bank separatly.
An easy way to visualize this would be to use just a smartphone and the victron connect app.
The smart shunt has bluetooth and can show you all relevant values of the attached battery.
How you could integrate this into the Garmin, - I don’t know. But connecting only the both shunts to a Cerbo GX device will not bring you any benefit I would say.
Thank you! i am planning to get one for each bank. Any assistance on sizing of the shunts?
I would assume, that the 300A version should be fine. This is still more then 7kW of power. Or do you have more then 7kW of charging power or more then 7kW of load?