Help sizing mppt charge controller with 260 w 38v panels
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kobylyoung
Registered Users Posts: 2 ✭
Hello,
I need recommendations for sizing a system around solar panels that came with the off grid property I bought. They are in the shed doing nothing, so might as well get them up and running. The panels are 260 w 38v panels.
I've taken a picture of the back and attached it below.
Here is the battery I'm trying to charge:
12.8 v 460AH with 300 amp bms.
https://a.co/d/fgQLbLD
What are the best recommendations for this application including possible four-string combiner box with 15 amp fuses?
Looking to charge fast whenever the sun shines.
Thanks for your help!

I need recommendations for sizing a system around solar panels that came with the off grid property I bought. They are in the shed doing nothing, so might as well get them up and running. The panels are 260 w 38v panels.
I've taken a picture of the back and attached it below.
Here is the battery I'm trying to charge:
12.8 v 460AH with 300 amp bms.
https://a.co/d/fgQLbLD
What are the best recommendations for this application including possible four-string combiner box with 15 amp fuses?
Looking to charge fast whenever the sun shines.
Thanks for your help!

Comments
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How many panels do you have?What are your loads? 120 volt only? 240 volt?Do you have already have an inverter?
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I have 4 extra panels not being used, everything runs off 120v, and yes I have a 3000 watt pure sine inverter.
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with the Voc of 38 volts. If I understand this correctly, you have four total panels.2 panels in series would = 76 Voc so any 100 volt rated charge controller would work.So for 4 panels you would want two each of the Victron in the link.
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