Hello everybody,
My experimental installation is composed of :
- 1x SmartSolar charge controller MPPT 150-60
- 1x 60Ah 12.8V Battery from Victron energy
- 1x Venus GX
- 1x BMV 712 Smart
I have an issue with the SOC that keep decreasing and now remains at 0%, even if the charge controller is in “bulk” mode. In facts, I tried to let the battery charging for a long time and I synchronized the SOC at 100% but it decreased just after slowly to 0%. I also checked that my shunt was correctly wired and there are no other wires than the battery on the “only battery” side of the shunt. So I guess that the shunt is not the problem.
Does anyone know how could I keep the SOC synchronized? I tried to modify the Tail current, Peukert exponent and the charge time detection as followed :
Do you think that I have to re-adjust those parmaters ?
Here is the SOC remains at 0% :
Thanks a lot for your help !
Have a good day !
Justin