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  1. mrdavvv

    Should i Knock Down my neighbor's Panels?

    Hello Forum! So recently my neighbor decided to put an elevated array of solar panels, our properties don't have any separation... so that ended up screwing our side. Title of the post its a Joke, but i think its not cool, they could have put them at any other place, we didn't even notice...
  2. mrdavvv

    Do a "real life" test with a GFCI outlet?

    So i got some GFCI outlets, i would like to test them just for science, curiosity and peace of mind. But not sure on how to try them, as i just need 10mA to make them trip.. maybe something like this?: Or im making this too difficult?, any easier / safer routes?.
  3. mrdavvv

    East West orientation with double MPPT's, wich setup its better?

    Hello!. So the setup is: - 4 x 400W panel (Gray), 6 x 405W (Light blue), and the rest in 410W (Blue). Total of 26 PV. - East west orientation - Solark / Deye 8K (10K of PV max). This are our option, put an east and west string in a single MPPT: Or put all east in a single MPPT, and same for...
  4. mrdavvv

    Deye / Solark 8K Setup, Some photos an diagrams!

    So this beast finally arrived: (8K LP1 US model) -- At a first glance i really like the quality of materials and the weight of it!. Planning on putting 10.5Kw of panels (26 x 405W), in a east - west configuration. Panels would be around 20 - 30° to E / W. Each MPPT would have 2 strings in...
  5. mrdavvv

    Practical limitation of a 24V system?. 4 x Victron (12000Kw) and 12.8Kw Solar

    Hello! So im playing with the idea of building a "big" Victron system, but only the 24/3000 model its available and legal for grid tie around here. So probably sticking with a 24V system, like this: Ive seen that this levels of power are not advice able for 24V systems, mainly for 2...
  6. mrdavvv

    Higher Quality All in One's... like MPP solar but better!

    So the MPP solars are very practical and they work allright, however i see them as a solution for small residential installations, and probably no the best option if you have a bigger place or want higher reliability. So im looking for an all in one unit, but with better build quality, more...
  7. mrdavvv

    Aluminum Busbars, only for top balancing, aceptable?

    Hello Forum. So im lazy and dont want to disassembly my whole series pack for top balancing: I have a bunch of aluminum flatbar (1/2 x 1/2 x 1/16) and was thinking about doing some custom bus bars for the sole purpose of top balancing: - Planning on bending them a little bit to avoid...
  8. mrdavvv

    Recomendations on Hall Battery Monitors?

    So i was about to purchase the 200A DROK, but its out of stock now (At least for my country): https://www.amazon.com/gp/product/B07B4CWKRJ?pf_rd_r=J093ZMDSYHQJ05K9HC2Z&pf_rd_p=6fc81c8c-2a38-41c6-a68a-f78c79e7253f So im getting the Aili version, wich its the same brand that will recommends in...
  9. mrdavvv

    Shunt vs Hall based battery monitors.

    Hello Forum!. So im going to buy a couple of battery monitors for my banks. Im interested in the ones recommended by Will: Shunt Based Hall Sensor Seems like they can serve the same function, check battery state and measure capacity. However, what are the considerations for deciding between...
  10. mrdavvv

    Connecting 2 x Daly based battery pack in series?

    Hello!. I was wondering if that its doable and recommended. As far as i know it shouldn't be a problem, for example if i want a 560Ah bank, i could build 2 x 280AH @12V units, each with its own BMS. Maybe im missing something?
  11. mrdavvv

    MPP Solar Error 57 - Current Sensor Failed, any idea?

    Hello! I was attempting to parallel conect two units, followed the procedure and at the final step (Turn on both inverters), they successfully auto assign as Master and Slave, both one of the inversters its trowing the error 57: Checked al cables and conections twice Redo al the paralleling...
  12. mrdavvv

    Its this a proper installation of panels or should we fire our installer?

    Hello! So it was my idea to install some solar panels at my company's warehouse, so im watching the installation, hoping that it goes smooth and hopefully we start to add more arrays. Im starting to think that we should look for other company for this..... We hired some guys that had some good...
  13. mrdavvv

    Solar arrays from different installations sharing the same ground?.

    Hello forum. So in my home we have a commercial space with a separate electrical system & utility meter. And separate solar systems but they are installed in the same array and sharing the same ground: FULL SIZE LINK Commercial Space: Array A1, with microinverters. Ground for all the PV...
  14. mrdavvv

    Do i have too much grounding on my system? - PV & Utility Earthing.

    Hello!. This is my current system: So im wondering, is this OK?. As you can see, i have 3 physical grounds, all of them separated. Ground 1: Exclusive to the PV panels, and not connected to any equipment, just the aluminum racks for panels. Ground 2: This is required from Utility company...
  15. mrdavvv

    Are the MPP Solar Hybrid inverters capable of backfeed to the grid the full PV power?

    Hello! So im cabling my inverters: And i just realized that the cables coming from the utility to my main panel are too thin!, house its old and the electrician decided that 2xAWG14 its enough for a full home. I don't have heavy loads, so all this time i didn't have a single problem...
  16. mrdavvv

    Custom balancing leads for Daly BMS!

    So im building my own case for the batteries, i wish to mount the BMS at one of the short sides but the factory leads are too short to accomplish that: Im looking for the specs of the components, for example the connector seems to be similar to the ATX for PC's but smaller, cables should be...
  17. mrdavvv

    Best charge profile for MPP Solar LV2424 and Lifepo4? -- Also Triying to decode charge Algorithm

    Hello Forum! So lately i have been trying different values for the charge setup on this unit. Im looking for a conservative charge profile, 10 - 90% SOC or maybe 20 to 80%. Im trying to check if my configuration its correct, and maybe others can share their own This is my current...
  18. mrdavvv

    Bottom balancing cells without a Balancer?

    Hello! I don't have a balancer and right now, and for the pandemic situation would be difficult to source one, so ill try to balance without one. Available: 16 x 280Ah Cells (2.5 to 3.65V range) LV2424 Inverter Daly BMS 10A laboratory power supply available Decent multimeter This is my...
  19. mrdavvv

    Batteries not having the expected capacity?, or maybe my numbers are very bad?.

    So im doing some testing in my system with the newly arrived 280AH LifePO4: And this are my test numbers: As you can see, i'm getting 3 and a half hours with a 500W load, so around 1750Whr, and considering the 50W that the inverter takes and some losses from efficiency and cabling its...
  20. mrdavvv

    Would little physical damages on Lifepo4 Cells affect their performance / lifespan?.

    So the happiness of finally received my 280AH cells washed out a bit after realizing that a couple of them arrived damaged: The first one its the most affected: Second one you can see a little bit of the alum case, but the impact its not that bad: So should i ask replacement from the...
  21. mrdavvv

    Checkout my design! - Vertical mounting of prismatic LIFEPO4

    So my 16 x 280AH Lifepo4 cells finally arrived. Now its the time to start building the battery pack's! 24V System for an hybrid inverter LV2424 2 x Battery Pack with 8 Cell each one, connected in series. Daly 200A BMS for each pack. 100A Fuse for each pack. Both packs connected in parallel with...
  22. mrdavvv

    Its Easun & MPP Solar inverters from the same manufacturer?

    Hello Forum. When i first started to buy the parts of my system, i took a long time choosing the vendor of the hybrid inverter, there is a ton of them in aliexpress/ baba and their designs are almost identical. So looks like most of them are just resellers. At the end i choose the LV2424 from...
  23. mrdavvv

    Sizing an array for MPP Solar LV2424 II

    After a quick google search i ended up in my favorite solar forum, and after reading both this topics, i still have a couple of questions: https://diysolarforum.com/threads/sizing-an-array-for-mpp-solar-lv2424.1395/ https://diysolarforum.com/threads/paneling-for-a-2400kw-pip.1239/ Baselines...
  24. mrdavvv

    Are Daly's still the best BMS's around?. 16Cells @24V Battery Bank.

    Nowadays we are having more and more options for BMS's, its nice, howemever the bad aspect is that it can get difficult to make a decision and even harder stay up to date with the new models. So i would really appreciate any recommendations for my new system!: And this is what i think is the...
  25. mrdavvv

    Building a big 280AH 24V Battery - Whats the best supplier for cells right now?, also, sanity check for my numbers.

    Hello! So im building a 24V battery for my LV2424 Hybrid system: So, a couple of questions: 1.- Seems like William is testing a new battery almost each day ;)... so im unsure if the supplier that he linked in his site is still a recomended one. Im looking for 280AH Aluminum case batteries...
  26. mrdavvv

    A new beginning. How i learned to hate lead/acid batteries and found my perfect solution (LIFEPO4's)

    Hello Forum! I started a little system with the main purpose of having energy all the time, kind of a big UPS for my office. Buyed a little LV2424 Hybrid inverter from MPP Solar, and ended up with this: -LV2424 Inverter - 4 x 370Ah Trojan Batteries - Oversized 1/0 Cables - Marine battery...
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