Swiftly solved problem
Infinity Renewables installed our Growatt solar system over two years ago, and it had worked fine until July. Then the batteries appeared not to be fully charging. Infinity tried software updates etc, but problems soon returned. Engineer Owen from Growatt came and sorted problems with battery control boards in 30 minutes. Excellent service. Batteries have been fine for several days now, all we need is more sunshine rather than August clouds!!