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graham-perry avatar image
graham-perry asked

Limit SoC on lithium for summer storage on boat with solar

I am storing our boat with Renogy lithium house bank batteries for the 4 months and intend to keep the solar system on with my Smart Solar MPPT on to power the bildge pumps and other systems. Generally the batteries will be under very little load I am looking for recommendation for settings to keep the batteries at a 80 to 90% SOC. Would simply setting the bulk charge to 13.8?

MPPT ControllersLithium Battery
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Alexandra avatar image
Alexandra answered ·

@Graham Perry

With some batteries we usually don't recommend this as they need to reach a full charge at least once a month to maintain cell balancing. Particularly on passively balanced lithiums.

It is best to leave the system running at its normal settings.

So if the 13.8v is when balancing is triggered then that should be fine.

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