houndlegs Posted May 20, 2021 Share Posted May 20, 2021 Evening I'm fitting a solar panel to my caravan. I have the wire from the panel to the controller, that came with the kit. But what size do I need from the controller to the battery. Panel is 175W, controller is a Victron MPPT 75/15, solar cables are 4mm². Controller will be approx 50 cm from battery. Thanks Quote Link to comment Share on other sites More sharing options...
Mike&deb Posted May 20, 2021 Share Posted May 20, 2021 Hi, I would still suggest you stick with the 4mm, IMHO the thicker the better Quote Link to comment Share on other sites More sharing options...
houndlegs Posted May 20, 2021 Author Share Posted May 20, 2021 Hi Mike&Deb, do you mean there are different thickness 4mm² cables? Quote Link to comment Share on other sites More sharing options...
Mike&deb Posted May 20, 2021 Share Posted May 20, 2021 No. I mean I would consider 4mm the thinest to use. You can get cables well over 4mm but that would be best IMHO Quote Link to comment Share on other sites More sharing options...
houndlegs Posted May 20, 2021 Author Share Posted May 20, 2021 Ahhh gotcha. Thanks. Quote Link to comment Share on other sites More sharing options...
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