24 volt solar sytem for operating recirculating pump

[91cavgt]

Thanks again for the reply. I have all the parts and plan to try to get it done before rain starts this evening. I charged the new battery and will charge the other once I disconnect it. I redesigned the previous drawing. I assume I can leave the panels wired in series even if I decide to stay at 12V (batteries wired in parallel)? I found an old shooting rail that was never put on a ladder stand years ago that I couldn't throw away and it will serve as the panel mount now. Pics later in this thread.

Yes, with that charge controller, you can keep the panels wired in series and have the batteries wired in parallel with no problems. The general rule of thumb is that you always want the solar panels putting out higher voltage than the batteries. The charge controller, being an MPPT version, will convert the higher voltage into more amperage. For example, on my cargo trailer, it has a solar panel on the roof that puts out 72 volts and about 2 amps. The EPEver charge controller that I have on it converts it down to 12 volts and about 9 amps. This is why I prefer MPPT charge controllers because they give you more options when it comes to wiring, and they tend to be more efficient too.

[Bill M]

Thanks again for everyone's input on this.

I got everything ready at the pond. Batteries are ready go, both charged fully. The pump was horrible but got a deep clean. I will see how it runs and decide then if I change to parallel wired and stay 12V.

This shooting rest came with a ladder stand probably 20 years ago but those stands were for bowhunting. I never put it on and have carried it around for all that time and I finally get to use it. I'll do all the wiring for them tomorrow and mount it.