I've had a look through the masses of previous questions and unfortunately couldn't find any that were quite the same as mine.
Recently I have noticed that my SmartSolar 100/30 completes it's bulk and absorption stages and enters float mode. When in float it will match any current draw from the battery for roughly an hour and then will suddenly no longer keep matching the battery and it will then start dropping down from 100%.
It says it is in float mode, there is plenty of sunlight and panel voltage present, however it doesn't output any charge to the battery. No other chargers connected to the battery.
I have the float voltage set to 15.8V and even when the loads connected to the battery increases it does not kick it back into bulk.
I then have to reset the controller by disconnecting the solar, then battery and reconnecting, which it will then it go back into bulk mode, absorption mode and then eventually into float again.
Has anyone else experienced this issue? Is it potentially a firmware issue?