Dear Victron fellows,
For the last few days the midpoint voltage on my installation went up to 6 % deviation from time to time, causing the BMV 702 alarm ring. My 48v storage consist of 4 x 12v carbon-lead batteries in series, so I suspect one battery to be at his end of life, but they are just 2 years old !.
My installation is offgrid, so the cycles are quite deep (75-80 % every day), as you may see on my public VRM :
https://vrm.victronenergy.com/installation/25746/advanced
Do you think one battery could be not enough charged when the BMV reach 100% and my MPPT 150/35 stop charging ?
Any help is welcome
Thanks in advance
- Jean-Claude