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  1. JeepDaddy

    New to solar. My solar charger from amazon bought two and both don’t show the solar panel charging battery. The battery is full

    I think you answered your own question. How is it supposed to charge a full battery? Drain your battery a bit and see what happens.
  2. JeepDaddy

    280AH 4S, Compressed with Heaters in a 27 Series Battery Box

    It's a sheet of 0.040" aluminum in "Pepsi Blue". I got twice as much as I need for $4 on eBay. The heater pads are attached with RTV silicone gasket sealer to it and the battery cells sit right on top of it.
  3. JeepDaddy

    New JBD / Overkill bluetooth monitor

    And...... Short version: RPi 4B, Debian/RaspberryPi OS, @tgalarneau Github, YouTube, MQTT, NodeRed, Influxdb, Grafana.
  4. JeepDaddy

    Different voltage cells in DIY battery

    You need to top balance. Your cells are way out of line. DIY LiFePO4 101, step1.
  5. JeepDaddy

    Did I damage my AGM battery with a low 'float' voltage?

    I agree with Short_Shot. Set your float to 12.6v. I would also wire your loads so that no loads pull from the starter battery unless the engine is running. Don't use the built-in WiFi router (or anything else) that runs off the starter battery. Add another one that runs off the house...
  6. JeepDaddy

    280AH 4S, Compressed with Heaters in a 27 Series Battery Box

    My BMS came with the heater cables. They have an overtemp disconnect thermostat built into the cable assembly that you can see in the third picture. Yes, Thats an active balancer by the BT module. I'm not sure I need it now that I have a few good cycles on my battery. I would highly...
  7. JeepDaddy

    280AH 4S, Compressed with Heaters in a 27 Series Battery Box

    Thank you. Aliexpress. Look for 10W Silcone heating plate. They were about $2 each with free shipping.
  8. JeepDaddy

    Crazy low prices on Aliexpress LifePO4 320A, with buyer protection?

    My experience with this is extremely poor. It's a long story, but I was ripped off and have no recourse. There is no protection.
  9. JeepDaddy

    BMS cut off , one unbalanced cell

    Could be a bad cell or just not balanced, but you should not have to deal with that with a commercially built battery. Contact their support and/or return it.
  10. JeepDaddy

    New JBD / Overkill bluetooth monitor

    I just ordered a RPi 4 and ESP32 yesterday, starting down this road with Home Assistant. I was going to do just the house, but this topic might get me to do the motorhome as well. I will be following and posting if I have any success.
  11. JeepDaddy

    280AH 4S, Compressed with Heaters in a 27 Series Battery Box

    The seller says each of the two ports can support 10 watts max. They turn on at the lower temperature charge cutoff and back off at the release value. I bench tested this to be true. I do like that built in feature. As shown, I put 2 10W silicone heating pads, one on each port, on an...
  12. JeepDaddy

    280AH 4S, Compressed with Heaters in a 27 Series Battery Box

    B+ is to power the two heater circuits built into the board. The heaters are powered by the top two ports above the B+ marking in the pic. I don't think it's required for anything else. I like the BMS so far. No problems.
  13. JeepDaddy

    Are there any cases that fit 4 battery cells?

    I just started a show-and-tell thread here: https://diysolarforum.com/threads/280ah-4s-compressed-with-heaters-in-a-27-series-battery-box.26901/
  14. JeepDaddy

    280AH 4S, Compressed with Heaters in a 27 Series Battery Box

    A few pics of my 4S 280AH build with 150A JBD BMS with cell compression, Bluetooth, active balancer, and two 10W heaters all shoehorned into a marine 27 series battery box. The packing foam that the batteries came in makes great insulation and hold the battery in place.
  15. JeepDaddy

    Are there any cases that fit 4 battery cells?

    I used a standard marine 27 series battery box for my 280AH cells with compression, 150A BMS, and two 10W heaters.
  16. JeepDaddy

    Wire gauge for JBD 150a bms

    Are you sure that's a JBD BMS? The part number is usually printed on the label and starts with JBD-xxxxxx. IDK, I just haven't seen that before, but who knows........
  17. JeepDaddy

    What is the best way to combine the 3 wires from BMS C- or B- into 1 terminal/wire?

    All 3 blue wires are the same. All 3 black wires are all the same. A common port BMS uses the same wiring for charge and discharge.
  18. JeepDaddy

    Amperetime / CHINS 12V 100AH enough to start RV Generator?

    I just tested my Onan 5500 Emerald Gold generator yesterday and the starter pulled about 75-80 amps according to my Victron Smartshunt. My JBD 150A BMS on my 280AH cells had no problems. I'm not sure what type of RV you have, but for FWIW, my hydraulic leveling system pulls 90 amps.
  19. JeepDaddy

    Wire gauge for JBD 150a bms

    The longer board is the JBD 150A BMS. They have updated the versions over time, but the basic layout has remained. The smaller ones are 100A or 120A units unless something has changed. Perhaps the vendor did not have the correct picture associated with the 150A BMS. I'm using three 10AWG...
  20. JeepDaddy

    Wire gauge for JBD 150a bms

    The longer one is the JBD 150A. It's the V1.5 board, but does not have the heater ports which I thought all V1.5 boards had - at least mine does. The smaller one says 100A.
  21. JeepDaddy

    Dump all excess PV to air heater?

    Which Victron SCC do you have? Some of them have a load output that can be switched based on battery voltage. I'm planning to use that to dump excess power to a water heater.
  22. JeepDaddy

    Dump all excess PV to air heater?

    You don't need to worry about that, the controller will only accept what it needs. Think of it as the SCC switches the panels off when the batteries are full.
  23. JeepDaddy

    Brand New 12V 100Ah LiFePO4 Grade A W/ BMS & 3-Year Warranty For $399.99 Continental US Only. Shopvan.life

    The website says taxes and shipping are included in the price. It that means sales tax, that's an over 10% savings for those of us in Northern Kalifornia, formerly known as Washington state.
  24. JeepDaddy

    Cells physically swelled, popped bus bars - are they fried??

    Do all 4 connect to the BMS or do some bypass it?
  25. JeepDaddy

    Cells physically swelled, popped bus bars - are they fried??

    Linky no worky. How is your pack wired up? Are those 4 wires in the bottom right on the main negative terminal?
  26. JeepDaddy

    PV Arrangement?

    Max PV input voltage for the LV5048 is 145Vdc. 4 of your panels in series would be 140Vdc. The manual says typical amperage of 80A, so you should be OK there, not knowing your Imp. So 4S4P would be a good place to be, IMHO.
  27. JeepDaddy

    JBD BMS, have found similar here but not this model

    Battery specs do not give an indication of the intended application. Thanks for providing a link that does. Would you post a link to the vendor selling that particular model BMS? I can't seem to find that one online. Yes, I do see that you posted the spec sheet.
  28. JeepDaddy

    JBD BMS, have found similar here but not this model

    It would help if we knew what your application was.
  29. JeepDaddy

    MPP Solar, stop from utility charging?

    If you look at it a little differently, you can get the same result from using a variable power supply connected to your batteries and set to the lower voltage you want it to kick in at. Disable utility charging on your MPP and let the power supply provide power at your lower limit.
  30. JeepDaddy

    Always on Bulk mode..

    They will sit at that voltage for a long time before it comes up. How many hours has it been giving you 9 amps? You will need to consider giving it 100 amp-hours before full charge is achieved.
  31. JeepDaddy

    Always on Bulk mode..

    A 100W combined in parallel with a 200W panel will not typically give 300W, it's probably closer to 200-240W under ideal conditions. You can search "combining solar panels" for the reasons why. The charger will stay in bulk mode until you hit absorption voltage - 14.2v per your numbers. The...
  32. JeepDaddy

    AC Charger, Automatic Transfer Switch and Battery Life

    Yes, and yes. It would just keep your batteries from going below whatever voltage level you select.
  33. JeepDaddy

    AC Charger, Automatic Transfer Switch and Battery Life

    Exactly. It would keep your batteries from going below whatever voltage you specify. It would not charge your batteries, per se. Your solar would take care of that. My power supply (the one in the link) has worked fine for me, but you never know. I would also recommend using upgraded leads...
  34. JeepDaddy

    AC Charger, Automatic Transfer Switch and Battery Life

    Good question, I can check and report back when I get home in a few days, but it shouldn't be much. Maybe someone else has a good number. I'm thinking it would be plugged in to grid power so it would not consume anything from the batteries. I never had a variable DC charger before this year...
  35. JeepDaddy

    AC Charger, Automatic Transfer Switch and Battery Life

    Consider using a 30V 10A bench power supply similar to this - DC Variable Power Supply - connected full time to your batteries. Set it at your lower discharge voltage, say 24.4 volts. Your solar will charge above that level and the power supply will kick in only when your batteries are at or...
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