I fitted a 100W Biard solar panel earlier in the year. It feeds 2 x 110Ah. batteries. The charge rate is not indicated on the controller except by tri-colour led's and I'm concerned that the batteries are being over-charged - loss of electrolyte in both and higher than normal voltage - 14.9v in sunlight. I'd prefer a better controller so that I can see what's going on. Anyone have any suggestions?