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Hi I have two panels out of my eight on my boat that are acting up. On a day when my other 100 watt panels are putting out 3.5 amps ( measured with an amp clamp ), two panels are putting out .53 amps. The Panels are wired in parallel. I have switched the connections going into the parallel connector and this made no difference. The good panel stayed at 3.5 and the bad at .53. Any suggestions. Am I looking at a bad connection?