diy solar

diy solar

Search results

  1. W

    Wiring a 6 into 1 combiner box wire size.

    here's the specs on the panel. Trying to do s2p6 into the combiner box. So 12 panels total. The run from the combiner box to the PIP 3048LV-MK is 30 ft. Can I get away with 6awg wire? And what's the most cost effective wire I can go with when running through underground conduit? Also...
  2. W

    Wiring a Homeline load center. Green ground screw question.

    Ok I'm running an MPPSOLAR pip-1012-LV. 1000w inverter system in an off-grid setup from a DIY 280ah LifePo4 battery bank and 600w of panels. Until today I was just using a cut extension cord hooked directly into the output of the MPPSOLAR for 120v. I hooked up a load center with 3 breakers (a...
  3. W

    JBD bms cell overcharge issue.

    Ok so one of my cells in a diy 280ah LifePo4 will hit 3.6v while another is at 3.55 and 2 others are in the upper 3.4s. I realize I need to top balance these cells again, but am living off grid and this is my only power source, so that's not an option at the moment. I am hooked into an...
  4. W

    Pip1012lv-mk stays in "float" mode

    My Pip1012lv-mk 12v system always stays around 60w charging unless I unhook my panels and then rehook them back up. Then it will charge at the actual solar input of the panels until the battery is full. It's like it's stuck in a float/top off mode no matter what the state of the battery is...
  5. W

    Cell 2 about .150 over the others at top of Charge cycle

    So I built a 4 cell 280ah LifePo4 with the eve cells I got from dongguan lighting. While I still had a house, and electricity I had done the top balancing with a 10a charger. And I did it 3 days in a row until the cells rested at 3.5v. then I drained them to 3.3ish and packed them into the...
  6. W

    DGJBD (overkill solar) best settings for longest LifePo4 life.

    I just got the 12v 120A version of this bms up and running today, and I'm wondering if there is a general consensus on the "best" settings for longevity of LifePo4. The system is an 1012LV-MS (could use best settings for that as well if you have them handy.) Hooked to 4 top balanced 280AH...
  7. W

    Off-grid insulin refrigeration setup.

    So I sold my house and have been off grid on a property in Missouri for the last 8 days. I have a small shed house being delivered Monday, and have been living out of the back of a small school bus for the past week. It's no big deal except I've had to idle the bus for a few hours per day...
  8. W

    Adding leads to JBD BMS.

    Looking for input on this... I've added extra leads to the back side of the contacts through the holes in the pads. These holes Basically splitting the copper strands into 4 bundles and threading them through the holes like this. Then soldering on both sides and trying to fill the gap...
  9. W

    One cell stuck at 3.35 during top balance

    My 1st cell is reading 3.35, while the others are reading 3.42. the others have been rising slowly while cell one just sits there. Bad cell?
  10. W

    280AH dongguan lighting cells top balance.

    Got these hooked up for a top balance. How long do you think it will take? It's set at 3.45 for the first push. But it seems like as it goes on it's pushing less than 3.45 to them. I started doing them individually last night because I didn't have bus bars, and as it went on the amperage...
  11. W

    Jbd 120A smart BMS leads.

    I have one of these on the way from China, and plan on beefing up the leads on it. Wondering if I can just solder 3 more 8awg wires to the connection and use the original wires as well? Or is it best to remove the thinner wires that it comes with and just start fresh? It seems like it would...
  12. W

    280ah lightning cells on PIP-1012LV-MS. 2 awg wire sufficient?

    If my math is correct here, I should only be able to pull 83A max with the 1000w inverter correct? The length will be short. Less than 3 feet. So 4 awg should be good enough... I'm going to use 2awg, to oversize it a bit and also to give some room for some direct 12v loads like small...
  13. W

    300A(+) BMS with 80A(+) input? (Not chargery)

    I bought 20 of the 280AH cells from Alibaba (lightning). And am looking for a 16s BMS to pair the 48v battery to an mpp solar 3048. The 3048 has an 80A mppt controller, but most BMS I am finding in the 300A discharge range only accept up to 50A charge input. I don't plan on pulling anywhere...
  14. W

    Shopping for system components for off grid build.

    Hey. I'm pretty new to solar, and am trying to wrap my head around everything but I'm in the shopping/planning phase, and would like some input/suggestions. So I'm listing my home in Pennsylvania, and when it sells I'm going to move to an off grid property in Missouri and begin building a...
Back
Top