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MrWizard's avatar
MrWizard
Moderator
Jun 24, 2015

why don't Solar controller mfg/sellers use honest ratings

example most 30amp controllers are listed at 390w of panels and 40amp controllers at 500w of panels but we don't charge batteries at 12.0v we charge at 14v or higher 14v*30 amps 420w output, ...
MrWizard's avatar
MrWizard
Moderator
Jun 25, 2015
Transformers are listed in volt amps and that is a certified measurement for inductive devices

And slightly off topic

What I'm saying is they give tWo numbers, and they conflict with each other, you can't get the stated output, if you abide by the stated input

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