I came across a YouTube video that tested the output of a bunch of folding solar panels.? The Allpowers one did test out lower than most of the others.? The best performing panel was Bluetti.? The Bluetti produced 84.5% of rated output, and the Allpowers only 76.5%.??
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One thing that's apparent from reading reviews on these solar panels, however, is that most of these companies, even the high end producers like Bluetti, produce a fair amount of duds.? Even with only 5% 1 star ratings, there are lots of comments of low output, or output that drops off after just a few uses.? Then the other common complaint is that the support group is non responsive and it's difficult to get a warranty replacement.
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So when you buy a solar panel, get it from a place with free 30 day returns, test it well within those 30 days, and return it if it has sub par power, or any other problem.
