I have a 14kw array charging a 33kw bmw battery with a 450/100 mppt , 1 60 amp mppt and a 100 amp mppt.
at the moment in testing everything is working as expected . I’m about to add a second multiplus ii 5000 in parallel but I’m first of all trying to figure out the low output of the multiplus ii and trying to see if I have missed something in my settings.
I’m running ess and I can’t see anything that would limit the output but it seems when the voltage of my battery is at the lower end the output is lower . My battery is a 12s and my bms will cut off if cell voltage goes high or low
I have the ess configured to stop discharging at 41v and stop charging at 49v
Output of the multiplus appears to be limited to around 3500w until the battery is 47-48v when the output can go as high as 4200w
my cell voltage settings are conservative and the battery is fully able to discharge 8kw right down to the 41v limit I have set
any idea why my output is not 4kw ?