mppt vs pwm
Hi, A nice little video comparing mppt vs pwm with the batteries in bulk mode. mppt vs pwm
Forum Discussion
The balance would have to be pretty good IMO or all the amps would go down the path with the least R or at least the amps would be in proportion to the different R amounts. You could smoke one of the controllers if each is near maxed with the hoped for split and you don't get as much split as you hoped for.
Doesn't matter with $20 eBay PWM controllers, but it would hurt to fry one if they were hundred$ each!
I did run two 20a controllers from one panel feed through a Y in hopes of each controller taking half the amps of the array. I was not able to measure how many amps each controller was getting (needs a clamp on ammeter)
I did confirm getting the total array amps to the battery bank ok, just no idea how many amps from each controller.
Doesn't matter with $20 eBay PWM controllers, but it would hurt to fry one if they were hundred$ each!
I did run two 20a controllers from one panel feed through a Y in hopes of each controller taking half the amps of the array. I was not able to measure how many amps each controller was getting (needs a clamp on ammeter)
I did confirm getting the total array amps to the battery bank ok, just no idea how many amps from each controller.
