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  1. M

    Is it practical to use golf carts with a large 15KWh batteries in a home Hybrid Solar system?

    I already use Anderson connectors on all the packs I build.
  2. M

    Is it practical to use golf carts with a large 15KWh batteries in a home Hybrid Solar system?

    Do Hybrid Inverters allow for plugging and unplugging of different batteries from the system without changing settings on the inverter?
  3. M

    Is it practical to use golf carts with a large 15KWh batteries in a home Hybrid Solar system?

    That was my thinking. Currently, I am 100% grid reliant and I'm considering adding solar for emergency backup. But with 40KWh (in three separate 16S batts.) storage capacity already sitting in my garage it got me thinking about the possibility of building a hybrid solar system that would allow...
  4. M

    Is it practical to use golf carts with a large 15KWh batteries in a home Hybrid Solar system?

    I have an unusual question. Is it practical or even possible to use several very large, 10-15Kwh, 16S LFP golf cart batteries (that I built) interchangeably as part of a Hybrid Solar power system? My goal would be to both charge the golf cart batteries, and to use the batteries, if not being...
  5. M

    Needing a 16S Smart BMS with Low/High volt signal for external solenoid...

    I've seen those and may end up with one, but I'd really prefer to use an external contactor controlled by the BMS. I know that Orion and some of those will do it, but they cost $400+.
  6. M

    Needing a 16S Smart BMS with Low/High volt signal for external solenoid...

    I would like to find a 16S Smart BMS that will control an external solenoid or contactor to isolate the pack, rather than a circuit board mounted FET or contactor. I was running a Zeva BMS in my cart which is using an Gigavac contactor to isolate the pack. I would like to continue to use this...
  7. M

    CATL 271Ah cell issues.

    Last I knew he was in Florida
  8. M

    CATL 271Ah cell issues.

    Sorry for the off topic but I believe someone posted here that they cut the 6mm washers for Michael and they had some extras but I cant find it now. Does anyone know who that was?
  9. M

    CATL 271Ah cell issues.

    if you are close enough Michael will pick up the bad batteries. At least he picked up mine...
  10. M

    CATL 271Ah cell issues.

    For what its worth. I finally received tracking numbers on my replacement cells last week. My messed up cells came from his "main supplier" and it still took 2 months to straighten out.
  11. M

    How much capacity is lost if only charged to 3.58v..?

    Thanks, I'm actually really familiar with NMC cells and their charge/discharge profiles but recently branched out into Lifep04 packs. I was pretty sure I wouldn't loose much if any real capacity above 3.5. But wasn't sure.. I was actually looking for the charging chart and was striking out and...
  12. M

    How much capacity is lost if only charged to 3.58v..?

    I'm building a 16S CATL 202ah pack and have a 57.4v charger left over from a 14S Nissan Leaf build from a few years ago. It was 57.4v vice 58.4v to maximize cell life of the used cells. My question is how much capacity will I loose if I only charge my lifepo4 CATL cells to 3.58 volts per cell...
  13. M

    CATL 271Ah cell issues.

    Just so you know I had a Michael Caro sighting yesterday! I can confirm that he is in fact a warm blooded human being thats working his ass off to fix all these problems and make things right as fast as humanly possible (as he promised). I'm not far from where he is currently at so he came up...
  14. M

    CATL 271Ah cell issues.

    I wouldn't have picked up your call the other day, fortunately my wife answered for me. A lot of people don't answer unknown calls these days and you may end up going to voice mail more often than not. My 2c.
  15. M

    CATL 271Ah cell issues.

    Michael, I appreciated the call yesterday. To bad the .zip file couldn't be opened. Anyway a total of 15 emails, with I think 97 pics were sent of damages. If you need any more let me know. Hopefully we won't have to do much back and forth with your supplier and we can get my issue off your...
  16. M

    Battery Suppliers with stateside warehouses/supply?

    I'm probably searching for a unicorn at this point... With the huge demand, there must be suppliers with stateside warehouses set up. I'm sure the inventory would fluctuate but there must be some suppliers out there. Right?
  17. M

    CATL 271Ah cell issues.

    Hey Michael, Since my order came from your "main supplier" and you said he "does whats necessary to make things right" my order should be quicker resolve. Right? (I did begin my order 19 January...) Based on your previous experiences with them, I'm wondering what I can expect to happen with my...
  18. M

    CATL 271Ah cell issues.

    Hey Michael, You said the Supplier of my cells "does the right thing with damage"... Based on your past experience, how long should I expect my damaged shipment take to be resolved since it came from your "Main Supplier"? I emailed the pictures and information to you 8 days ago and have not...
  19. M

    CATL 271Ah cell issues.

    Michael, Please let me know if the pictures in a .zip / Google drive worked or if I need to send individual pictures in multiple emails. Thanks
  20. M

    CATL 271Ah cell issues.

    Michael, I appreciate you dealing with this mess for me. Personally I'm glad I have a middle man with some clout negotiating on my behalf when ordering directly from china. Email sent this morning. Hopefully they will ship replacements quickly. Thanks, Jeff
  21. M

    CATL 271Ah cell issues.

    Good to hear... Fedex just told me the last 2 boxes (waiting 17 days for delivery from the local facility) are being returned to the shipper/Chino Every cell in the 9 boxes I received measured 3.077v-3.083v except for one which measured 2.907v. Is this an issue causing accelerated self...
  22. M

    CATL 271Ah cell issues.

    Well Michael, I believe that I can shed some light on at least part of the cause of damage to my shipment of 202's. After 14 days trying to get the boxes from my local FedEx distribution center I have received 9 of 14 boxes, FedEx returned the last 2 boxes to the shipper last night, I managed...
  23. M

    CATL 271Ah cell issues.

    Well this doesn't appear to be limited to CATL 271/310. I ordered 56 CATL 202ah cells got my tracking #'s around July 3rd and they are arriving 6 boxes yesterday, looks like another 3 will be coming today and I am still waiting for the last 5 boxes... Same packing, same lack of labeling...
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