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diy solar

Recent content by nicorellius

  1. nicorellius

    Fault Code 04 on LV2424 - Display Showing Intermittent Spike in Load

    My system starting doing this again rather frequently. All when battery gets to about 25 volts, eg, SOS of about 20% according to my coulomb meter. I changed two settings: number 29 cutoff voltage to 23.5 from 24 and number 12, back to charge from utility, to 24.5 from 25 volts. We'll see...
  2. nicorellius

    Fault Code 04 on LV2424 - Display Showing Intermittent Spike in Load

    No, haven't figured this out. However, it hasn't happened again. But it did show similar spikes without the fault code a couple times since, seemingly randomly. Not sure what's going on but further investigation is definitely needed.
  3. nicorellius

    Fault Code 04 on LV2424 - Display Showing Intermittent Spike in Load

    I'm looking for some guidance on my LV2424. I've had this small off-grid system running smoothly for about a year. I've got 6x 240 W panels in 3S2P configuration, charging a battery bank of 4x 12 V LiFePO4 batteries, wired in 2S2P for a 24 V system. It's been great so far, after initial testing...
  4. nicorellius

    Adding 2x 100 A h to existing 24 V system (2x 100 A h batteries)

    I just turned my system back on after wiring my two series in parallel. Everything is looking good. This was quite the adventure, but now I've got a much better understanding of how charging these LiFePO4 batteries works. Ah, the joy of learning ? Thanks again @rmaddy for the broad overview...
  5. nicorellius

    Adding 2x 100 A h to existing 24 V system (2x 100 A h batteries)

    After the PSU charges these batteries to 14.4 V in CV mode (accumulation), I am assuming they are at 100% SoC (both new batteries were fully charged as of yesterday at 9pm). In order to match to my old batteries, I'm going to top them off with the benchtop charger (same method). What I noticed...
  6. nicorellius

    Adding 2x 100 A h to existing 24 V system (2x 100 A h batteries)

    Thanks @FilterGuy I started charging one of my new batteries this morning and it took about 7 hours to get to 14.5 V and the current drop to near zero. Battery number two is charging now. If I do let it go in CV mode at 14.4 V for a while, and the current gets down to close to zero (eg, like...
  7. nicorellius

    Adding 2x 100 A h to existing 24 V system (2x 100 A h batteries)

    Picked up a banchtop power supply. I'm thinking setting the PSU to 14.4 V in advance, then hook up the leads and charge at 2-5 A is reasonable, but that will take a while (assuming batteries are at about 50% SoC). Is there any reason I shouldn't charge at 10 A? My batteries should be able to...
  8. nicorellius

    Adding 2x 100 A h to existing 24 V system (2x 100 A h batteries)

    Thanks for the reply. Those precautions seem very sensible. No, I did not. They were at the same voltage, so I hooked them up to my all in one and charged them that way. It's an LV2424. I didn't have a charger I was comfortable charging LiFePO4 batteries with (based on other conversations) so...
  9. nicorellius

    Adding 2x 100 A h to existing 24 V system (2x 100 A h batteries)

    Apologies for any redundancy here. I've read several thoughts on the topic but I'm still unsure how to proceed. I've got 2x 12 V 100 A h LiFePO4 batteries in series making a 24 V system. These batteries are less than 6 months old. I bought 2x of the exact same batteries (same manufacturer...
  10. nicorellius

    MPP LV-2424 uses only a fraction of available power to charge

    What is your solar charge max current? I've got my "total max" set to 80 A and utility max set to 40 A, so solar max by the difference is 40 A. I had these set wrong for a while and saw similar issues. Lots of sun but low incoming watts. Except when load was high, then the panels would deliver...
  11. nicorellius

    MPP LV-2424 uses only a fraction of available power to charge

    I've been using this for a few months and it's been great: AiLi Battery Monitor Voltmeter... https://www.amazon.com/dp/B07CTKYFTG?ref=ppx_pop_mob_ap_share Very affordable and easy to set up. I also have an LV2424 and it's been a interesting experience getting it configured just right. This...
  12. nicorellius

    MPP Solar charge controller

    No, it's the white model, off grid... I've noticed here on the forum that sometimes the settings mentioned don't match the manual I'm working from.
  13. nicorellius

    MPP Solar charge controller

    I must be using an older or newer version of the firmware (or maybe different models have different software?), as I do not have the setting, "Battery stop discharging voltage when grid is available." My numbers 19/20 are "Automatically return to default display screen" and "Backlight control."
  14. nicorellius

    MPP Solar charge controller

    I've read and paged through my LV2424 manual so many times that I had to reinforce the covers with packing tape ? Check settings 01 and 16, charger and output priority. Totally agree with @TomC4306 Read that thing cover to cover, then do it again. Then put it right next to your MPPT and...
  15. nicorellius

    Rant on terminology...

    Nerd mad. That's priceless
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