Guys I have a Spf6000dvm with 4875w ( 325w Canadian solar x15) panels directly connected to the pv input so the internal charge controller is producing at max the 79 amps to charge batteries. I have 3x (48v 200ah) Rosen lifepo4 battery banks
( roughly 30kw). On cloudy and over cast days charging drops to like 20-30ah and therefore my batteries don’t get to even 90% buy the evening with loads continuously running. I am aware that the inverter does not want to take anything more than the 5000w to it’s pv input. But I have a Outback fm80 with 2700w ( 9x300w) connect to it. Can I add this somehow to help charge the batteries a bit faster in low light? What , just connect it to the battery banks bus bar? I know it’s too much and would not be utilized if I added the pv output to the pv input of the Growatt as it uses max 80ah. May eventually burn up the mppt charge controller board but can I do as described above and if so how ?
( roughly 30kw). On cloudy and over cast days charging drops to like 20-30ah and therefore my batteries don’t get to even 90% buy the evening with loads continuously running. I am aware that the inverter does not want to take anything more than the 5000w to it’s pv input. But I have a Outback fm80 with 2700w ( 9x300w) connect to it. Can I add this somehow to help charge the batteries a bit faster in low light? What , just connect it to the battery banks bus bar? I know it’s too much and would not be utilized if I added the pv output to the pv input of the Growatt as it uses max 80ah. May eventually burn up the mppt charge controller board but can I do as described above and if so how ?