My solar system has worked very well for the last 2+ years, I never need to use shore power while traveling. But as of last week, something new came and I cannot find the solution. 1-2 minutes after I start the car engine, Victron BMV 712 jumps to 100% battery charged. Which is not true, of course. I only now it's full when it's not charging (and checked at the Votronic "Full Charge Green Led").
I tried the Synchronize to 100% after the battery was full, via the APP. I unplugged the cable from the BMV and connected again. Checked all cables on the Super B Battery. No success for this problem. The system is working, but I do not know how much battery I have after the motor is used.
My installation:
- BMV 712
- SuperB 160Ah
- Votronic VBCS 60/45/430
- Inverter + 4 solar panels (total of 370W)