PWM duty cycle in a solar charge controller
I run a Morningstar Tristar PWM 45 solar charge controller that is fed by two 140 watt 12 V nominal panels (Cynergy) mounted fixed and flat. Batteries are currently 2 x 6 V GC from Costco. I run a c...
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I use the same CC with the default duty cycle with no problems with a pair of Exide 12 volt batteries. SG checks have been right on for all cells so I haven't seen any need to change it. Absorb is set at 14.8 V.
Your right about the solar angle in winter but cooler winter temps also let the panels produce a higher out put for longer under full sun conditions.
Based on our experience I wouldn't change it.
Your right about the solar angle in winter but cooler winter temps also let the panels produce a higher out put for longer under full sun conditions.
Based on our experience I wouldn't change it.
