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jimski avatar image
jimski asked

On a 24v system with a 300ah lithium battery, what would be the minimum amount of panels

On a 24v system with a 300ah lithium battery, what would be the minimum amount of solar panels with a 100/30 Mppt charger? Or a 75/15?
I am new, so if this has been covered before, I apologise.

NMEA 2000 - N2K
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klim8skeptic avatar image klim8skeptic ♦ commented ·
@Jimski The answer would require knowledge on how much energy that your loads would use for the day.
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3 Answers
waninae39 avatar image
waninae39 answered ·

there is no minimum, each panel just adds more power


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jimski avatar image
jimski answered ·


Mainly short peak loads, such as a kettle and coffee machine. Charging power tools and a laptop.
I had heard that on a 24v system, the Battery needs a high solar voltage tipping point, or it won't charge even if it is in the optimal charging condiitions.

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1234enough avatar image
1234enough answered ·

Normally PV voltage required to be 5V more than battery voltage for charging to commence, so in answer to your initial question "one".

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