Eco-worthy 20a MPPT controller
Last month I purchased the Eco-Worthy 20a MPPT controller from their website for $89 plus $24 shipping. Right now it says $102.50 and free shipping. You can see them on ebay with free shipping and if ...
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14.7 is getting close to max if my crude comparison method is valid.
230w worth of 12v should get Isc at high noon pointed, or about
230/130 x 8.2 = 14.5a.
Toss in something for MPPT over that and there you are. So your 20a MPPT bargain controller is doing great.
If you can see your amps at the same time, or get somebody else to call out the numbers, you can just point the panel at the sun and tilt it up and down to find the best amps.
That's where you get all those mad scientist guys making panel mountings out of swivel rocking chairs and light intensity sensors driving geared motors. How is your contraption coming along? :)
230w worth of 12v should get Isc at high noon pointed, or about
230/130 x 8.2 = 14.5a.
Toss in something for MPPT over that and there you are. So your 20a MPPT bargain controller is doing great.
If you can see your amps at the same time, or get somebody else to call out the numbers, you can just point the panel at the sun and tilt it up and down to find the best amps.
That's where you get all those mad scientist guys making panel mountings out of swivel rocking chairs and light intensity sensors driving geared motors. How is your contraption coming along? :)
