question

baha avatar image
baha asked

Why isn’t my solar panel and MPPT charging my battery?

hello we bought victron mppt 75/15 - bluesolar one month ago. our system is 2 x 110 watt 12 v sun power solarpanel which connect with each other in paralel format. other group 2 x 110 watt 12 v sunpower solarpanel connect with each other in paralel formal. ı mean we have two groups in our systm.. this 2 system connect with 6 battaries- 105 amper, ıf we try to work both of them, this battaries do not work. ıf we try to work one of them they are working.. what should we do for work all of them ?? ? ıf you ask something we can reply..


battery charging
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1 Answer
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rickp answered ·

I‘m unclear about your solar panel setup. You say you have 2 panels in parallel, then another 2 panels in parallel. Then you connect them together, I am guessing also in parallel. It’s possible one panel is defective and is drawing the others down. Have you tried each pair without the other... in other words, do both pairs work when connected alone (just 2 at a time)?

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