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Post Info TOPIC: Can I mix inputs of solar to the van?


Senior Member

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Date:
Can I mix inputs of solar to the van?


Hi All,

Like most on here I have solar on the van roof charging batteries via a mounted regulator. I also have a portable 250W panel.

Looking for opinions whether the two can work together to charge van batteries if I were to have both in use at the same time on the same batteries, ie, will the regulators be working efficiently or will they be out of sorts with two regulators on the same job?

Cheers Vince



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Guru

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You can, but going into absorption make sure the controllers' voltages are set in order as priority.

 

My experience:

https://thegreynomads.activeboard.com/t67699282/mppt-solar-controllers-in-parallel/



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Guru

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Hi Vince,

You won't need the controller on the portable panel. Connect the panel so it connects to the input of the current solar controller, in parallel, and all should be fine.

If you run an Anderson plug from the controller to a suitable external location to connect the portable panel, you can then connect or disconnect the panel as required.

I am assuming the van solar panels are currently in parallel array. An MPPT solar controller is the most efficient. The portable probably has a PWM controller.



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Guru

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Date:

Best to do as Dicko says, but first ensure your controller is rated to handle the extra input.

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Senior Member

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Posts: 439
Date:

Thanks All, I might rig up an Andersen plug input for the panel, good idea!

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