I have two panels with separate Victron regulators with - connected to the smartshunt and + to my Lithium Bluetooth Heat Pro III 200Ah battery. All load is also connected the same way.
The built-in Meritsun battery monitor shows far less remaining capacity than the smartshunt does. Is there anything I can do to keep them more in sync?
Can you share your bmv settings. They probably need tweaking
Does the meritsun show discharge AH?
@Alexandra Thanks for the swift reply!
The Meritsun is pretty stupid and doesn't show anything more than the picture (except for voltage/current) :/
Here are the smartshunt settings:
This is what matters ...
At what voltage does the Smart Shunt re+calibrate to 100% SOC. At what voltage does the MeritSun re-calibrate to 100% SOC. When these two voltages are exactly the same then the two % SOC's should have minimal difference, assuming the both shunts can accurately ( or identically ) measure amps flowing in/out and both compute % SOC the exact same way (math formula) with given parameters.
We have a 12v mertisun in a 4x4 setup.
Have the peukerts at 1.03
Charged voltage 14.2
Charging the battery up 14.4/6v cant quite remember there.
Their internal SOC of the mertisun could just be calculated a bit differently.
31AH from 200AH though the 85% is close to what is expected there. Since 31ah is about 15% of 200AH.
What are you charging the battery up to? Maybe the mertisun internal.one did not go high enough to trigger its 100%
