Monday, Feb 22, 2016 at 09:09
Frank, Although I understand your comment re buying a panel with no controller, (potential quality) this may restrict one's choice of good quality, cheap panels.
My folding panel was purchased from Bit Deals and came with an on board MPPT controller.
As I have a dc-dc charger with
solar input in my camper, I added another circuit to the panel's
junction box so I could bypass the on board controller and connect the panel's uncontrolled output directly to the D250S
solar port on the camper. Obviously, the best location is as close to the batteries being charged, for optimal performance, especially if you have a longish cable length.
In this way, I can still use the panel if required to connect up to the auxiliary in the back of the vehicle or any other battery I choose and use the original circuit using it's on board controller.
This is easily achieved by adding another cable to
the junction box where the two panels terminate and before the input to the on board controller which is actually not too shabby.
In this way I get the best flexibility from my 120 watt panel array without compromising output quality.
The original twin cable has a removable alligator clamp style connection and the "uncontrolled" additional circuit is terminated with an Anderson connector.
Works for me!
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