mppt vs pwm
Hi, A nice little video comparing mppt vs pwm with the batteries in bulk mode. mppt vs pwm
Forum Discussion
So here is a wrench to toss in to the works.
I keep seeing how the controller stops charging to check the panels voltage or cuts the power on and off in PWM. When I first started using the solar i reported that once in float I was able to turn on anything in the trailer and have the panel run it while the battery stayed in float. I was told that was impossible, that the battery was discharging and recharging so fast that you couldn't see it on the controller or even with a meter. So to prove my point I set up a panel, controller, battery, inverter and light bulb, got it all running and pulled the battery off of the system. The light stayed on, it wasn't pulsing. The inverter would have shut down at any drop in voltage so the power was constant as long as the sun shined.
I don't see how it would be possible with the power cutting in and out.
I keep seeing how the controller stops charging to check the panels voltage or cuts the power on and off in PWM. When I first started using the solar i reported that once in float I was able to turn on anything in the trailer and have the panel run it while the battery stayed in float. I was told that was impossible, that the battery was discharging and recharging so fast that you couldn't see it on the controller or even with a meter. So to prove my point I set up a panel, controller, battery, inverter and light bulb, got it all running and pulled the battery off of the system. The light stayed on, it wasn't pulsing. The inverter would have shut down at any drop in voltage so the power was constant as long as the sun shined.
I don't see how it would be possible with the power cutting in and out.
