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  1. W

    Large voltage swings

    This is the first time ive had a load this big, no issues for awhile. Yes. 3.3 and 3.2 That must be an error, i have balance set to 3.45
  2. W

    Large voltage swings

    The bolts are on with as much torque as my hands can produce without struggle or pain, maybe thats the issue. No voltage mismatches either, i doubled checked with multimeter, maybe it only shows problems with high charge and discharge?
  3. W

    Large voltage swings

    Cell voltages checked at rest, all good, and connections were all solid. Could not pull anything out with slight tug.
  4. W

    Large voltage swings

    See attached. I did top balance and added pic of battery and bus bar specs
  5. W

    Large voltage swings

    I am getting massive, volt large voltage swings with my overkill solar 48v bms when charging 25a from my chargeverter. I am charging with 57v 25a from my chargeverter. Bms: https://overkillsolar.com/product/bms-100a-16s-lifepo4-12/ Chargeverter...
  6. W

    Chargeverter Woes

    I have tried everything with this setup: https://www.amazon.com/dp/B0C49VBS3S?psc=1&ref=ppx_yo2ov_dt_b_product_details https://signaturesolar.com/eg4-chargeverter-battery-charger-48v-100a-5120w-output-240/120v-input?ref=cPwLcVc0SW-BjN Trying to get the chargeverter to work with 120v. It shows...
  7. W

    Project: 2 axis rotating solar panels on a camper

    I want it to track horizontally so no sadly If it comes down to it ill just build it on the ground like a normal person :(
  8. W

    Project: 2 axis rotating solar panels on a camper

    Looking for camper experts as well as solar experts here: I have an idea to mount 2.8kw of panels on a camper roof, but i want them to be adjustable in both axis. Moving the camper is not a option as i want maximum output without having to move it every hour. I live in Alaska and in winter you...
  9. W

    Diesel heater 48v

    So the idea is to get something like this: https://www.homedepot.com/p/VEVOR-17000-BTU-Diesel-Air-Heater-5KW-15L-Tank-Diesel-Parking-Heater-with-LCD-Switch-for-RV-Bus-Motor-Home-and-Boats-ZCJRQ12V5KW20JT01V0/319873758 And run it on full blast a few minutes before shut down and have the exhaust...
  10. W

    Diesel heater 48v

    I am trying find a diesel heater that wont stink up the place with bad smells that i can run with my 48v system. It needs to be able to be shipped to alaska. Suggestions? I heard marine grade diesel heaters don't make a bad smell, but I am looking at all- in - one units here. Do i have to...
  11. W

    Charge controller rating confusion

    even when accounting for that 151.2 number being the short circuit voltage of the panels?
  12. W

    Charge controller rating confusion

    I have a 48v 16s battery with this charge controller: https://www.amazon.com/gp/product/B07HHP9N8P/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 It says its rated for 60 amps, however it says the wattage max is only 2800w with a 160v input max. My panels are 6.5 open circuit amps with 21.6v...
  13. W

    Charge controller sparks every time i hook it up

    Thanks much guys, I'm getting a expected 10% output on a rainy day.
  14. W

    Charge controller sparks every time i hook it up

    Just now hooking everything up, will do with just one spark. Will cover panels with tarp before connecting them as well
  15. W

    Charge controller sparks every time i hook it up

    Just now hooking everything up, will do with just one spark. Will cover panels with tarp before connecting
  16. W

    Charge controller sparks every time i hook it up

    But isnt wiring solar panels to a charge controller without a battery a bad idea? Something about burning out the charge controller?
  17. W

    Charge controller sparks every time i hook it up

    Will it make a spark when connecting panels too? How to stop that?
  18. W

    Charge controller sparks every time i hook it up

    Every time i hook up my makeskyblue 60 amp solar charge controller to my 250 amp dally bms it sparks. The bms turns on and everything seems ok, but i heard that sparking is bad. I have tried pre charging it with a resistor to no avail. The machine shuts off seconds later and then sparks again...
  19. W

    Connect inverter to diy battery with bms

    I am preparing to connect my 5000w pure sine inverter to my 250a dally bms. (48v battery) Is there any procedure I should follow to ensure max success? Everything is working and connected correctly, minus the + of battery to the + of inverter.
  20. W

    Bms recommendations

    Could you post a link to a 48v 16s version from amazon? I'm having trouble finding a "JK BMS" for less then 1000$. Im in alaska so shipping is a horrendous process, hence the amazon thing.
  21. W

    Bms recommendations

    I would like to hear you guy's recommendations of a bms you own. Sturdiness and reliability are my most important factors. In the market for one. EDIT: Could you post a link to a 48v 16s version from amazon? I'm having trouble finding a "JK BMS" for less then 1000$. Im in alaska so shipping is...
  22. W

    Charger keeps burning out

    Polarity is fine on all cells and i re inserted the temp sensor. No dice, same readings. Am going to buy a new one. Does overkill solar ship to alaska?
  23. W

    Charger keeps burning out

    The cells are not that voltage, i checked. 3.28V. I also re did the balance wires, and they are ok. Look under the images in main post for this information. Its now reading 0 volts on all battery cells and a -40 C temp. I think this bms is done, ill try once more tomorrow.
  24. W

    Charger keeps burning out

    Its now showing -40c temps and 0 volts for all cells, I do think i fried it.
  25. W

    Charger keeps burning out

    Made the update to main post in case anyone else wants to follow along. Screenshots included.
  26. W

    Charger keeps burning out

    Whenever i hook up: https://www.amazon.com/dp/B07G32Q2W8?psc=1&ref=ppx_yo2ov_dt_b_product_details To 16 of: https://www.amazon.com/gp/product/B0BJJN9HJQ/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 with this...
  27. W

    Bad buss bar?

    This this bus bar; sub par? Was wondering if I should just get standard m4 connectors since they are circle shaped and thus contact more of the battery terminal. Also if you post recommendations post a link to where i can buy
  28. W

    Mix and match bus bars for battery, also solar and wind charge controllers?

    Two chargers of different types. One is for solar panels the other is for a wind turbine. Different amps, but the cap on both is less then the max amps the battery can take. Still ok?
  29. W

    Mix and match bus bars for battery, also solar and wind charge controllers?

    Two questions Is there any downside to using different spec bus bars to make a 48v lifepo4 battery? 3.2v 280ah. Is there any potential downside to using a solar charge controller and also a wind turbine charge controller hooked up to the same battery/system? Keep in mind the above controllers...
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