replacing a battery wouldn't prevent the panel from working.
Im sure you haven't been daft enough to drop the power.
What does it say say when you re-initialise?
Why is it everyone who DOSENT have NSI GOLD either makes an excuse or pretends they do or old if they wanted. This NSI GOLD imitation thing realy is sincerest rom of flattery. In any event it appears the gold theme is finaly creeping back in to specifiers documents
Its epidemic and installers dont have a single body to lobby about this. Used to be easy just say to customers dont use them unless. Now its just pot luck. Divided we fell!