Very Handy Solar Panel Tester | Frogbro FB673PV

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I use this a lot to test individual solar panels.
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[@skinkie]

Is it able to tell anything about the bypass diodes?

[@jungleriver]

It won’t say directly but you could glean information from the power output (assuming you have about 1000w/m2 of irradiance to compare from factory values). On some solar panels you can easily get to the diodes to test them with a meter or visually inspect.

[@jab376]

Since it runs on solar, what if you try to use it indoors, with no sun?

[@jungleriver]

I can’t see why you would use it indoors since you want to ideally test a solar panel on a sunny day. But it doesn’t take much power so indoor lighting on the panel should still give values.

[@jacobpetersen5662]

@@jab376 would u test a solar panel indoors with no sun?