I received a 120W Bluetti fold up solar panel about a month ago through their Indiegogo campaign and I have been testing
it with the AC200 since then. It is connected in series with a Sunpower 100W panel I have out on my third floor south facing balcony. A few days ago after a day of
full sunshine I noticed that the power from the panels was lower than it should have been so went out to check the panels.
And I noticed what you see in the attached photo on one of the panels, a pretty good sized burn/melt spot. When I touched
cell above the burnt one, the lower helf of it was very hot, so I measured the temperature of that area at over 300 degrees F! The rest of the panel
and the other panels were at 140 degrees F.
Anyone else who has one of these panels have this happen before? I have never heard
of this happening with any solar panel. Seems like maybe its a defective panel and the connections under those cells are not good so they are heating
up under high currents, Bluetti has been completely silent and I have asked them 3 times about this over the past 5 days.
it with the AC200 since then. It is connected in series with a Sunpower 100W panel I have out on my third floor south facing balcony. A few days ago after a day of
full sunshine I noticed that the power from the panels was lower than it should have been so went out to check the panels.
And I noticed what you see in the attached photo on one of the panels, a pretty good sized burn/melt spot. When I touched
cell above the burnt one, the lower helf of it was very hot, so I measured the temperature of that area at over 300 degrees F! The rest of the panel
and the other panels were at 140 degrees F.
Anyone else who has one of these panels have this happen before? I have never heard
of this happening with any solar panel. Seems like maybe its a defective panel and the connections under those cells are not good so they are heating
up under high currents, Bluetti has been completely silent and I have asked them 3 times about this over the past 5 days.