Forum Discussion

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, ...
Empty_Nest__Soo's avatar
Empty_Nest__Soo
Explorer
Jun 27, 2015
It seems to me that this discussion is limited to cheap Chinese-made controllers. As if there are no other choices.

There are solar controllers that will operate at a continuous current equal to (or somewhat greater than) their rated output. Obvious examples are the Bogart SC-2030 and the Morningstar Tri-Star controllers.

But you won’t buy one for $30. That doesn’t mean there are no other choices. Sometimes you get what you pay for.

Wayne

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