Hello, I am new here and to Solar wondering if anyone can guide me in the right direction to set up a 12V solar system my problem is
I have 4 x 250W solar panels that are rated at
Maximum peak voltage (VMP) 18.7V
Open circuit voltage (VOC) 23.37V
Max peak current (IMP) 13.37A
Short circuit current (ISC) 14.85A
I have a 60A PWM regulator/controller That is rated for PV input of 730W at 12V / 80V max input
I am thinking of getting another same 60A PWM regulator/controller and run 2 panels parallel on each regulator/controller?
Is this setup likely to over/undercharge my Batteries?
would having 2 controllers provide too many amps?
Battery specs
Bulk Charge Initial Charging Current less than 30A
Voltage 14.5V @ 25C/77F
Temp. Coefficient -30mV/C
Float Charge No limit on Initial Charging Current
Voltage 13.5V @ 25C/77F
Temp. Coefficient -20mV/C
I would be connecting the regulators /controllers to a battery bank consisting of 3 x 140AH AGM batteries connected parallel giving 420AH that will run a 1000W 12V/240AC inverter that will have usually have 300W or less like 150W max load.
Also, the Batteries have already been charged to full capacity with an AC charger.
Thank you
I have 4 x 250W solar panels that are rated at
Maximum peak voltage (VMP) 18.7V
Open circuit voltage (VOC) 23.37V
Max peak current (IMP) 13.37A
Short circuit current (ISC) 14.85A
I have a 60A PWM regulator/controller That is rated for PV input of 730W at 12V / 80V max input
I am thinking of getting another same 60A PWM regulator/controller and run 2 panels parallel on each regulator/controller?
Is this setup likely to over/undercharge my Batteries?
would having 2 controllers provide too many amps?
Battery specs
Bulk Charge Initial Charging Current less than 30A
Voltage 14.5V @ 25C/77F
Temp. Coefficient -30mV/C
Float Charge No limit on Initial Charging Current
Voltage 13.5V @ 25C/77F
Temp. Coefficient -20mV/C
I would be connecting the regulators /controllers to a battery bank consisting of 3 x 140AH AGM batteries connected parallel giving 420AH that will run a 1000W 12V/240AC inverter that will have usually have 300W or less like 150W max load.
Also, the Batteries have already been charged to full capacity with an AC charger.
Thank you
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