Well I bought a number of flexible panels from Dan's EV Solar that stopped working after one season. I decided to study dead panels and found that his supplier were not using the proper dog bones to join the cells together. The junction boxes were all corroded which may have taken out the diode. In addition I looked at the patterns in the back of the cells and they look like knock off Maxeons. Buyer beware as they will not warranty anything and will not even let you return the new panels. Once you call them back they conveniently go silent. I should have researched the panel before buying.
Corroded Junction Box
Proper Dog Bone Bus Bar as recommended by Sunpower
Actual Connection that failed due to weathering
Corroded Junction Box
Proper Dog Bone Bus Bar as recommended by Sunpower
Actual Connection that failed due to weathering
