diy solar

diy solar

Recent content by Kyfarmgirl

  1. Kyfarmgirl

    Samsung SDI Question

    If my MPPT charge controller (which hasn’t been purchased) is rated at 48v and 50 amps can my battery bank be larger than that or does my battery bank need to be within the controllers limits?
  2. Kyfarmgirl

    Samsung SDI Question

    I am putting together a solar system and was looking at the Samsung SDI 94a, 80.9v, 7.6 kw lithium battery module. I was planning on a 48 volt system. The seller noted “This battery has been setup for 22S, 80.V, 94A. You can change the setup to 12V, 24V, 48V .” This is a new module. Model...
  3. Kyfarmgirl

    3s3p pv array

    Perfect! Thank you so much.
  4. Kyfarmgirl

    48 volt question

    I am definitely in favor and he is going with a 48 volt battery bank. I was just curious if I “had” to have a 48v bank. I am so new to this and was just curious. My reason for using the DC air conditioner is it is on my farm and paid for (money is an issue). It is only 1 year old and (on...
  5. Kyfarmgirl

    48 volt question

  6. Kyfarmgirl

    3s3p pv array

    Sorry, I just realized that the current leads will reach in landscape. Duh.
  7. Kyfarmgirl

    3s3p pv array

    They are MC4. To get them on the roof I will have to put them in landscape. I will likely need to make the leads longer. Is 10 awg wire sufficient for all runs? Is the fuse already or likely to already be in the connectors that came on my panel or do I need to add fuses between each panel?
  8. Kyfarmgirl

    3s3p pv array

    I was looking at the for the solar charge controller. 48 volt battery bank. Tracer 5415AN MPPT Charge Controller 50 amp 12V / 24V / 36V/ 48V DC Auto Rated charge current: 50 amp Max Input Power: 625W-2500W ( 625W/12V battery 1250W/ 24V battery 1875W/ 36V battery 2500W/ 48V battery) Max.PV...
  9. Kyfarmgirl

    48 volt question

    Thank you!!
  10. Kyfarmgirl

    MPPT Question

    I appreciate your info!!! I thought I would need a 48 v battery system with that MPPT charge controller. Solar is more complicated than I thought!!!! I am trying not to make a costly mistake. The cabin is a well insulated 480 square feet. His small 9000btu air conditioner does well but...
  11. Kyfarmgirl

    3s3p pv array

    Sorry, spell checker changed PV to POV and I didn’t catch it!
  12. Kyfarmgirl

    3s3p pv array

    I am trying to design my POV array. I am planning on a 3s3p array. Does anyone have a link or drawing showing the connectors/fuse sizes/junction box I need for this set-up. I have drawn it out but am really second guessing myself. I have attached my solar panel specs. Thank you to anyone who...
  13. Kyfarmgirl

    48 volt question

    I have a 48 volt totally DC air conditioner. I am trying to design my system and needed to know if I have to have a 48 volt battery array or if I could run the DC air conditioner off of a 24 volt battery/array.
  14. Kyfarmgirl

    MPPT Question

    I am trying to get some air conditioning going in an off grid cabin my son is living in on my farm. I had some 250 watt panels not being used. He has a DC only mini split purchased from China (haven’t cracked it open yet). I THINK my plan is to use 9 panels in a 3s3p array. According to...
  15. Kyfarmgirl

    Help! Putting together a new system...

    I have looked at the aio unit attached. Any thoughts? Again this is a 48 volt system. I am still having a lot of trouble drawing out a 9 panel 3s3p configuration for my panels as suggested. my brain is having a lot of trouble. My panels have a VOC rating of 37.4 with an ISC of 9. I took a...
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