Is it fine to limit charging current in mppt CC?

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Is it fine to limit charging current in mppt CC?

Postby Jman » Tue Nov 20, 2018 6:31 pm

Hello,

I have a victron mppt 100/50 and if say in 12v mode there is 700watts of solar coming into the CC, is it safe for the unit's longevity to set the battery charge rate to just 30amps? What about going alot lower? Are they really made for this?

My uneducated guess would be the heat sinking will get more warm perhaps?

cheers.
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Re: Is it fine to limit charging current in mppt CC?

Postby davidg » Wed Nov 21, 2018 9:02 pm

Smart MPPT charge controllers don't actually get much hotter producing less current, what they do is move along the volt/current curve of the solar panel/array limiting the amount of power that can be produced from the panel/array. the real heat generated is generally from producing the maximum current and doing so for extended periods of time Victron should be fine doing this without problems, as long as they are not in excessively hot or direct sunlight environments.
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Re: Is it fine to limit charging current in mppt CC?

Postby Jman » Thu Nov 22, 2018 6:02 pm

Thanks david for clearing that up :)
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