I have a strange issue, which is probably just me not knowing...
I have a BM-712 and MPPT 100 Solar Controller installed in my camper to a couple 165W solar panels. The system is basically wired like this (https://community.victronenergy.com/storage/attachments/4583-screen-shot-2019-07-29-at-93141-am.png) without the Color Controller. This past weekend, the voltage of the battery was reporting ~10V but the charge was showing 100%. When the sun came up and the solar started to work, the charge would go up throughout the day. I also used shore power through a generator to augment the charge. As soon as I unplugged the generator, the battery went back down to ~10-11V. I connected a NOCO trickle charger and it was at 25%.
Today, I pulled the battery out completely to recondition. The BM-712 showed 13V. The solar was still connected. I would have expected that, since the BM-712 is only monitoring the battery, it would show only battery voltage and not any solar charging. Of course once I turned off the solar breaker, the BM-712 went to zero.
My questions: How can I get the correct percentage to report on the BM-712 and why would a voltage show on the BM-712 with no battery connected?
