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We have a problem with brand new Victron SmartSolar MPPT 100/15.
After a night, when new day powering solar panels and Victron SmartSolar
-the SmartSolar is NOT reaching Float Voltage setting. We have to unplug
battery and solar panel – to brigh it back (Float voltage). Why?
Is there any software bug? or We have a broken SmartSolar?
We have a Firmware 1.50
How many panels? Battery voltage? How are panels connected? Panel VOC? System voltage? Battery type and profile used? You are aware that to start, voltage has to be vbat +5?
Two panels, voltage about 70-80V, battery 24V (27,6V), "user defined" battery preset to: Absorption 28,5V, Float: 28V.
It works good....to the night. When new day is powering on Victron charger, the SmartSolar is charging battery: Bulk, Absorption and Float.... with voltage below the Float voltage setting. Why?
In MPPT settings, what is your load output "operation mode" set to?
I have the 100/15 and found playing with different settings in here (especially changing to "battery life" or changing here to custom user modes) changed some other parameters -like my absorption time and lengths and when and how it went into float mode if at all!
So this might be where a float voltage issue could be?
Also when I joined my bmv712 via VEsmart network the MPPT started using the bmv712 values to change when it did things and because my bmv712 was not set up correctly that messed the MPPT up and changed absorb and float times and voltages that I saw. So maybe if part of a network remove it while solving float voltage problem.
Also 70-80v each or together in MPPT reading?
If batteries are overcharged will they still reach wanted float voltage?
Does problem with float voltage happen when no load on system for that day?
No none could help me at this forum?, so - where should I ask about it? Is there any Victron support contact possibility?
What charging state do the leds on the mppt indicate?
Do the batteries reach the bulk/absorb setting?
Got to give us some system specs or screen shots of your settings and battery page tabs.
Without this,
If you are not getting into float consistently are you certain your batteries are still good?
For 1 day they might seem good but need to have everything be "reset" by unplugging everything and redoing it to appear good again a day later. So that's one possible problem.
The victron techs are not on here except 1x or 2x a week so you might have to wait a few days more for a direct response. Sharing specific details also will help the community help you find an answer possibly quicker.
Hi what batteries are you using. Because 28V float is very high for a 24V system.
