Pairing up the Eco-worthy 20a MPPT controller
Thanks to BFL confirming that the Eco-Worthy controller plays well when run with another controller, I felt pretty good about combining my two matched controllers. Each had one of the Bosch 245w mono ...
Forum Discussion
BFL
I believe the peak amps I see are the result of what the controller ask for. Here in Denver the 230w was always limited to 15a and a bit above 16a up at altitude. The 245w have gone higher when I used a starter to put a load on them here. So the power is there, the controller doesn't always use it. (lower the banks voltage and the amps get higher)
All of my panels exceed Isc both in straight test on the meter and on the controller. only 1 or 2 amps here but up in the hills I saw 11-13a in Absorb and float all the time. I couldn't check with the meter up there as mine only goes to 10a. That's why we can use the lights, fans, furnace and the system never comes out of float. It doesn't have to draw down the battery to run those things.
Now that I have twin systems with more than twice the power, it will take the inverter and a larger load to bring the battery out of float. With 20-26 amps or so to work with we can run anything but the microwave and hair dryer and the battery will just keep charging.
Maybe I could set up a side by side with my pal that got the TS-MPPT-60 and see what kind of numbers it pulls from his 245w's.
I believe the peak amps I see are the result of what the controller ask for. Here in Denver the 230w was always limited to 15a and a bit above 16a up at altitude. The 245w have gone higher when I used a starter to put a load on them here. So the power is there, the controller doesn't always use it. (lower the banks voltage and the amps get higher)
All of my panels exceed Isc both in straight test on the meter and on the controller. only 1 or 2 amps here but up in the hills I saw 11-13a in Absorb and float all the time. I couldn't check with the meter up there as mine only goes to 10a. That's why we can use the lights, fans, furnace and the system never comes out of float. It doesn't have to draw down the battery to run those things.
Now that I have twin systems with more than twice the power, it will take the inverter and a larger load to bring the battery out of float. With 20-26 amps or so to work with we can run anything but the microwave and hair dryer and the battery will just keep charging.
Maybe I could set up a side by side with my pal that got the TS-MPPT-60 and see what kind of numbers it pulls from his 245w's.
