On a new system i am working out a few bugs and fine tuning with a mppt smartcharger 150/85, multiplus II 3000/24, cerbo gx, and smartshunt.
It is a cold unmanned camp in winter with temps to -20f or colder now and then so temp comp is important. I noticed the SOC doesn’t seem to be temp adjusted like the charge voltages. Did i miss a setting or does the system not adjust the AH capacity or SOC. I have a temp sensor connected to the cerbo gx and share the data.
No, the effective Ah of the battery is temperature compensated.
Edit, the SmartShunt does have this functionality if the temperature sensor is used on the SmartShunt.
so then if i want the SOC to display somewhat close i will have to reset the battery AH capacity in the smartshunt to whatever the temp average is. I think i will be ignoring the soc in the winter then. And summer, and fall.
Seems like that would be an easy software adjustment ???
Is there a plan in the works to address this? I mean at zero F that makes the SOC 50% off. I realize SOC is only as accurate as the time you spend fiddling with the settings to keep it on track. Temp voltage corrections are all that really matter but why have SOC if its not temp compensated. Its like having a gas gage in your car thats only 50% accurate. at least for those of us with off grid systems.
I am out of date, the manual for the SmartShunt, section 7.4.1 states that it does have this function now, when the aux input is chosen as temperature on the Misc settings page a new input item appears below the aux input asking for a temperature coefficient. You probably need to use the special temperature sensor on the SmartShunt rather than the GX, I would not expect the GX to share temperature to the SmartShunt.
yes, thank you. It looks like i need another temp [different] sensor. The cerbo cant share its temp data with the smartshunt even with the ve connect cable as it is one way data from the shunt to the cerbo. Thanks for the help.