Question about dual solar controllers
Hi, I have a pre-existing 30A solar controller with 3 12v panels (2 x 80, 1 x 130) feeding 4 T-125's. I added a new 250w 24v panel hooked up to a separate Solar30 controller. Both controllers wire ...
Forum Discussion
OP I believe the Solar30 is a PWM CC. As such the maximum amps from your panel is the panel Isc. This means that the 250W panel and CC will be limited to 125W. Furthermore you need to check that using a 24V panel with 12V batteries will not damage the CC. Only a MPPT controller can convert all of the 250W panel power for 12V battery charging.
To be clear: A 24V PWM CC will use all of the 24V panel power to charge a 24V battery and half of the panel power to charge a 12V battery.
But given all of that if you want 1/2 the available power for charging then go for it.
Disconnect all other chargers and with a discharged battery measure the new CC output to verify that it is or is not working and don't make assumptions about the display values for a new CC. Multiple compatible chargers will all contribute to charging.
To be clear: A 24V PWM CC will use all of the 24V panel power to charge a 24V battery and half of the panel power to charge a 12V battery.
But given all of that if you want 1/2 the available power for charging then go for it.
Disconnect all other chargers and with a discharged battery measure the new CC output to verify that it is or is not working and don't make assumptions about the display values for a new CC. Multiple compatible chargers will all contribute to charging.
