Solar voltage help...
I just connected my solar kit (160w cmp12 controller)and the voltage while connected to the rv batteries reads 16.55v. Is this normal or too high? Sorry but im new to this.
Forum Discussion
Some controllers have a feature that clips the amps so they cannot pass through any more than spec. The bumph for the controller should say if it does that or not. Seems many/most MPPT are like that.
Many PWMs will pass through the amps and will overheat if the amps stay over very long (how long? you have to find out the hard way)
Standard advice (might be US NEC related) is 20% margin above the 25C temp spec for when panel does better than rated (in the cold or when getting edge of cloud effect) and that applies to the controller's amps size AND to the size of the fuse between battery and controller on the pos wire.
My Sharp panel user's manual says the same thing, warning that the panel can exceed its ratings at times.
I did not invent the 20% margin idea :)
Many PWMs will pass through the amps and will overheat if the amps stay over very long (how long? you have to find out the hard way)
Standard advice (might be US NEC related) is 20% margin above the 25C temp spec for when panel does better than rated (in the cold or when getting edge of cloud effect) and that applies to the controller's amps size AND to the size of the fuse between battery and controller on the pos wire.
My Sharp panel user's manual says the same thing, warning that the panel can exceed its ratings at times.
I did not invent the 20% margin idea :)
