I'm trying connect my 260ah AGM battery and 320w solar panel to my mppt 100/20. It registers the battery but I have 0w and 0v from the solar. I've triple checked the wires are connected properly and the right way round. I've checked the fuse and I've checked the wiring using a multi meter and there is power coming from the panel but the controller still isn't recognising it.
I'm aware it needs +5v above battery voltage to charge but I'd have through midday on a sunny day it would produce that easily.
What am I doing wrong? Anyone got any thing else I can try?
Thanks in advance.