Flexible Solar Panel - Will This Wire Cause Problems

mitch5252 wrote:
OP HERE:

I found this description of the charge controller I purchased (shown above; waiting for delivery). Did I waste my money?

This is a compatible MPPT charge controller PWM intelligent / efficient / energy saving, he not only has efficient MPPT controller charging function to automatically track the maximum power point, 10% -30% higher than the ordinary controller charging efficiency, also has standby energy saving, more than 30% energy than ordinary controller, the standby power consumption of only 10mA-15mA.

Here's the link: http://www.chinasolarregulator.com/solar-controller-cm50-cm60-cm6048-cm5048-cm3048-mppt-10-20-30.html

Note in that link where they show the one with the coil (true MPPT)and one without.(PWM only) Some without the coil nevertheless have MPPT written on them and are advertised as such. Usually the true MPPT ones are more expensive.

You didn't waste your money since the PWM us all you need for 12v panels. (You must have true MPPT to run a 24v panel though since it also has a way to deliver 12v to the battery from the 24v panel.)

If you are curious, you can unscrew the cover and the circuit board on yours and see if it has that coil or not.