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philemon asked

Low charging rate with mppt on lithium-ion batterie

Hello,

Hère is my setup :


Smart Solar mppt 100 20

300w pannel

128 ah 12v li ion batterie


I did plug everything in ordre but the Charging keep staying low, like 4w in full Sun. Thé yellow absord led IS on.


Andy thoughts ?



save-20210427-145231.jpg


battery charging
save-20210427-145231.jpg (148.2 KiB)
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seb71 avatar image seb71 commented ·

Post a screenshot with the battery settings from the solar charger.

What kind of Li-Ion? LiFePO4 or something else?

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philemon avatar image philemon seb71 commented ·

save-20210429-155414.jpgyes sir. It IS a 12v li ion battery i think its 18650 cells inside.



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