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I put a clamp meter on the the cables and I know the batteries are a bit low yet it is still only putting in 15 amps. I have also a 24v set of 300ah these are doing a bit better but I still don't believe that I'm getting everything out of my panels and in to the batteries.
Any ideas please
Hi Roger. Piease measure your battery V. Your cc will back off once that's achieved. Your cc may well have come with default settings of like 14.4V Absorb. And may not suit your Li's.
First port of call...
It might be a solar wiring issue.
Both 12v and 24v are running completely separately.
I am getting a worse result from these controllers than from some cheapie.
I get the feeling some settings are wrong, it worked well yesterday in the hot sun all day but at the end of the day there was still not much left in the batteries,.
I am also taking a lot out of them but am alternating between the the two sets and theoretically there should be plenty of amps there.
Can you seperate out the panels to see how much power each panel or panel pair is putting into the system independently of each other panel?
We want to see the production and voltage from each panel/pair individually.
For example if a panel is connected in reverse polarity it will be hidden by the others that are correctly connected.
I am not sure what you mean about 12V and 24V, do you have multiple battery banks connected to the same MPPT, or you have tested the MPPT in 12V and 24V systems?
Yes they are totally separate 12v and 24v.
Its basically another system that I can turn a switch and run from one to the other, separate inverters as well. No link.
I think my next move is to get hold of a Bluetooth dongle and make some adjustments. To set up to the battery manufacturer specs.
