Renogy 100w Bendable Solar Panels!
I just bought two of these, and I LOVE them. The panels are rated 100w at 19v, and using the world's cheapest, dumbest PWM charger I'm getting 60w out of each (120w total), all day long. ALL DAY LON...
Forum Discussion
greenrvgreen wrote:
The 100 watt rating is based on a 19 volt output at 5 amps and change. But I'm using a cheap PWM controller to harvest 12 volts, or about 62% of the output, as stated. HOWEVER, a PWM controller only takes the bottom 12 volts and throws the rest of the power away. The fact that I seem to be getting a reliable 12 volts at 5 amps (60 watts) leads me to believe that much (but certainly not all) of the remaining 7 volts might be recovered using an MPPT controller.
Are you sure it is the bottom 12v? thought it was somewhere in the middle....
Actually I thought a PWM controller pulsed and shut off all voltage in pulses to maintain a proper charging level to the battery. You do lose capacity but it's because the panels are turned off some of the time hence someone else's question about distributing the off cycle power to resistive heating element or something.
Of course, I may be completely wrong and nit picking.
