Hi, I'm researching a solar set up and I'm trying to figure out which charge controller to use.
I plan on using 7 100w panels in series making 84v 8.3a with a mppt charge controller.
I will be using 2 of these http://www.amazon.com/dp/B00ACNO2AO/...I1TQVZK7V9ZBWH
which are 12v 125ah batteries which I will be connecting in series.
The battery manufacturer states a charging current of 8A-35A and a charging voltage of 14.4V-14.9V for the batteries.
It also says under "charging options": Solar Panel: 175W-450W (120W may be used if Depth of Discharge would not exceed 50%)
The charge controller I'm looking into is http://www.amazon.com/dp/B00WZFPLE8/...I1QNNN93KACZGL.
Which states a "rated battery current" of 40a and a "charging limits voltage" of 15.5v
So my questions are
1. The batteries state a max current of 35 amps. The solar panel amp output is 8.3. Does "rated battery current" mean the charge controller will output 40 amps into the battery or is that a max rating?
2. The max charging voltage of the battery is 14.9v. The charge controller states a "charging limits voltage of 15.5v;x2/24" Does that mean the charge controller is too powerful for these batteries?
3. The battery manufacturer states under "charging options" 175w-450w solar panels. Does that mean a 700w panel system is too powerful for these batteries eve with 2 in series?
Here are the full specs of the charge controller
http://ecx.images-amazon.com/images/I/61YLsPaxB%2BL.jpg
http://ecx.images-amazon.com/images/I/51G12ONNrLL.jpg
I plan on using 7 100w panels in series making 84v 8.3a with a mppt charge controller.
I will be using 2 of these http://www.amazon.com/dp/B00ACNO2AO/...I1TQVZK7V9ZBWH
which are 12v 125ah batteries which I will be connecting in series.
The battery manufacturer states a charging current of 8A-35A and a charging voltage of 14.4V-14.9V for the batteries.
It also says under "charging options": Solar Panel: 175W-450W (120W may be used if Depth of Discharge would not exceed 50%)
The charge controller I'm looking into is http://www.amazon.com/dp/B00WZFPLE8/...I1QNNN93KACZGL.
Which states a "rated battery current" of 40a and a "charging limits voltage" of 15.5v
So my questions are
1. The batteries state a max current of 35 amps. The solar panel amp output is 8.3. Does "rated battery current" mean the charge controller will output 40 amps into the battery or is that a max rating?
2. The max charging voltage of the battery is 14.9v. The charge controller states a "charging limits voltage of 15.5v;x2/24" Does that mean the charge controller is too powerful for these batteries?
3. The battery manufacturer states under "charging options" 175w-450w solar panels. Does that mean a 700w panel system is too powerful for these batteries eve with 2 in series?
Here are the full specs of the charge controller
http://ecx.images-amazon.com/images/I/61YLsPaxB%2BL.jpg
http://ecx.images-amazon.com/images/I/51G12ONNrLL.jpg
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