When dc export enabled (with grid limit of 2.5kw) and a fully battery (absorbtion or float). The mppt acts not how I expected.
It goes to 0 output when grid limit is hit, battery then begins to discharge slightly and the the mppt goes back to full power. This causes voltage in battery to spike even in absorption/float stage.
I thought the mppt would slowly scale not go 0 to max and then keep repeating said process.
Is that the correct way the mppt should perform or am I missing a setting somewhere?