why would a 250/100 stay in bulk all night ? its dark outside...
My SmartSolar shows Charge State: Off at night.
Has your SmartSolar ever shut off at night?
If not, then 1) it could be a bad MPPT. 2} If not, it could be a miswire on your part. 3) It could be that a street light (or similar) is shining on your solar panel(s), making enough voltage to fool the MPPT into thinking it is daylight at night.
What voltage and current does the SmartSolar report as coming from your panel(s) at night?
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