Connecting a charge controller to Easy Solar

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beau asked Jul 29, '19

Connecting a charge controller to Easy Solar

Hello Victron fans,

I'm wondering if it is possible to run the cables from my SmartSolar MPPT 150/45 straight into the EasySolar 12/1600/70, instead of running all the way back to the batteries.

I bought the extra MPPT because the solar panels I have supply too much for the EasySolar MPPT.

Thanks in advance,

Beau

MPPT Controllers EasySolar All-in-One smart solar set-up help

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Murray van Graan commented · Jul 29, 2019 at 06:33 PM

It might be easier to rather make a DC busbar, have you considered this option? Also keep in mind voltage drop, as the MPPT senses battery voltage at its own battery terminals

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Answer 1 · 2019-07-30T06:10:03Z

JohnC answered · Jul 30, 2019 at 06:10 AM

Hi Beau. It should be ok to do that.

You should be able to see inside your Easy where it's internal mppt joins the battery terminals, perhaps with a large fuse in between (I'm not familiar with that model). If the fuse is adequate, you could tee in there.

But like Murraynated suggests, perhaps an external bus/isolator/breaker/fuse could be added.

But yes to using the big batt cables rather than running extra wires.

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Answer 2 · 2019-07-30T08:05:25Z

beau answered · Jul 30, 2019 at 08:05 AM

Thank you both for the replies, I think for now I will wire the MPPT straight to the battery, via a breaker. I'm using 16mm2 cable spanning a 2m length which was sold with the MPPT so hopefully will be suitable. Thanks again.

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