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  1. spludgey

    Australia: 202Ah Lishen cells A$190, 272Ah Lishen cells A$250

    Yes, I've also got 15Ah cells for $15 each. They come with cell holders.
  2. spludgey

    DIY LiFePO4 Starter Battery?

    Fair enough. The good thing about this approach is that it's modular, so you can have anywhere between one and 10 (I think, I'll have to check the maximum amount) of batteries in parallel. The cheapest option is still to DIY, if you're into that sort of thing.
  3. spludgey

    Australia: 202Ah Lishen cells A$190, 272Ah Lishen cells A$250

    Cells are sold with an Australian warranty and come with an Australian invoice. The cells are located in north-western Sydney and can either be picked up or shipped Australia wide. The 202Ah cells generally test in the 206Ah to 210Ah range and the 272Ah cells in the 280 to 286Ah range. Come...
  4. spludgey

    DIY LiFePO4 Starter Battery?

    Unfortunately no, given that they're a Daly BMS, they do not. I have to say that I'm not a big fan of serial connections on LiFePO4 batteries either, if you have a single bad/low cell in any of the four batteries, it will pull all of the battery packs down to the same performance of the worst...
  5. spludgey

    DIY LiFePO4 Starter Battery?

    Yes, Sydney (Carlingford)
  6. spludgey

    DIY LiFePO4 Starter Battery?

    Will do! It will be "Muller Energy". We're trying to expand into the battery market further, initially we were just selling cells, but we're getting a 12V 200Ah custom-made battery shortly and the starter battery will be our next offering. We felt like there were a lot of cheap (but also low...
  7. spludgey

    DIY LiFePO4 Starter Battery?

    Given that you're linking an Australian website, I wanted to let you know that we're working on an innovative new LiFePO4 starter battery that uses supercapacitors to start your engine and the battery to keep the caps charged. The innovative part about it is that even if you accidentally leave...
  8. spludgey

    JBD BMS USA Inventory - Is there Community Interest?

    Another silly JBD question from me: I've found some 100A 4S JBD BMS for a very attractive price in China. Does anyone know if it's possible to change the cutoff voltage? It's currently 8.4V, I want it to be 12.4V.
  9. spludgey

    JBD BMS USA Inventory - Is there Community Interest?

    Well the one thing I can think of is that four times the voltage would mean 16 times the power flow between batteries.
  10. spludgey

    JBD BMS USA Inventory - Is there Community Interest?

    4 batteries, each sealed with cells and BMS inside with only terminals exposed. I'm also thinking that it should work and that one battery shouldn't charge another, given that the curve is really quite flat. There might be a little bit of current flow between batteries when the batteries are...
  11. spludgey

    JBD BMS USA Inventory - Is there Community Interest?

    Sorry mate, I misread your post and updated my response. I'm actually talking about putting different BMS in parallel, not battery banks within one BMS.
  12. spludgey

    JBD BMS USA Inventory - Is there Community Interest?

    Edit, no 4 BMSs in parallel with each other.
  13. spludgey

    JBD BMS USA Inventory - Is there Community Interest?

    Hi, can I just got confirmation from anyone with 1st hand experience: Can you parallel 16s JBD BMS?
  14. spludgey

    16s parallel BMS needed (120A+)

    Thanks, I've contacted JBD and they've stated that officially only their 4s BMS supports paralleling. Do you know it would work for a fact?
  15. spludgey

    16s parallel BMS needed (120A+)

    But the cells are even rated at 2C for 30s, so I'm not going outside the specs. I'm just saying that these are likely fine to draw 2C continuously, going by other prismatic cells I've played with. But that's not what I'm proposing here at all and I am staying inside the specs. Even if one...
  16. spludgey

    16s parallel BMS needed (120A+)

    I know 76A is the rated continuous output, but I find that prismatic LiFePO4s can be pushed a lot harder than that and feel that going to just over 1.5C peak should be much of a problem. If you see this otherwise, please let me know. You obviously have a lot of knowledge. 450A is peak and for...
  17. spludgey

    16s parallel BMS needed (120A+)

    Okay, yes, I should have included that info. 76Ah Lishen cells The four batteries together have to be able to do 450A peak. No cold temperature disconnect or comms needed. Thanks very much! I've found out that Chargery can do this, however they are quite expensive, especially if you need 4 of...
  18. spludgey

    16s parallel BMS needed (120A+)

    I need to put four 48V batteries in parallel, any suggestions what BMS I can use? I would strongly prefer if it didn't need ethernet to connect to each other. Thanks!
  19. spludgey

    Lishen 270ah-272ah cell group buy.

    Does anyone still know of a vendor selling Lishen 202Ah cells for $50 or thereabouts? I'm running low and my latest quote was over 50% more! 😯
  20. spludgey

    Active balancer or not?

    Thanks very much for the productive discussion everyone, particularly @Steve_S for posting the video I had not seen (though I watch a lot of the channel). I have decided to include the balancers now. If anyone is interested, I'll keep you updated. I've noted that I've unintentionally copied one...
  21. spludgey

    Active balancer or not?

    I'm getting the following made by a Chinese manufacturer and I'm very much in two minds if I should get them to put a 5A active balancer in or not, what are your thoughts? Cost is a touch over US$1000. 50x custom 12V 200Ah (202Ah Lishen cells) 4WD/Camper battery with a whole bunch of connectors...
  22. spludgey

    What refund would you ask for?

    And lodge a complaint with AliExpress at the same time.
  23. spludgey

    What refund would you ask for?

    Wow, sorry to hear that! Compared to you I got off lightly! Do what John suggested above. As an additional step (if you used it) I'd like to suggest PayPal, it's easier than getting the money back from the credit card. How much did you pay all up? Same vendor?
  24. spludgey

    What refund would you ask for?

    A hail damaged car will also not affect performance, would you be happy to receive it if you were told by the sales person that it would be a new car in perfect condition? The cells were also ~15% more expensive than the ones from another supplier that I had ordered a month earlier. Those were...
  25. spludgey

    What refund would you ask for?

    Well, that's awkward! Wendy is the one I bought from. I ended up getting only a US$500 refund, by the way. Not overly happy about it.
  26. spludgey

    Aussie Group Buy 24V LiFePO4

    Did you end up getting them for that cheap? Or did customs stop it?
  27. spludgey

    2p16s 272ah LISHEN vs 3p16s CALB 180ah

    I've ordered a bunch from them. They're quite good, but obviously not perfect, as you'd expect given the price.
  28. spludgey

    What refund would you ask for?

    I believe there was someone else that said that they received 310Ah and they were fine. Just search for their name on this forum and that thread should come up. Hope it all works out for you!
  29. spludgey

    What refund would you ask for?

    Australia, but yes, I completely agree. Just because someone misrepresented the product to me, does not mean that I should then misrepresent it to my customers. If I did, I really wouldn't have any right to complain about dodgy business practices if I engaged in them myself too.
  30. spludgey

    What refund would you ask for?

    You're quite likely right, but that's only plan C. Plan A right now is the Alibaba dispute. Plan B is a credit card charge back. If that fails I will have to suck it up. I actually on-sell them, but I won't do the same thing that they did to me and pretend that they are garde A to my buyers...
  31. spludgey

    What refund would you ask for?

    I might say yes, fair enough, but the other supplier that had ordered from a few times before (they where out of stock), were $7.20 cheaper just a month earlier. So I don't think it's unreasonable to expect the same or better quality for a product that's 10% more expensive, do you? (Also not an...
  32. spludgey

    What refund would you ask for?

    That's from my usual vendor, I would have been happy with that quality! (Note I've had this one in a system for a short time, so some terminal wear might be from that)
  33. spludgey

    What refund would you ask for?

    Requested a full refund on the basis that they bear no resemblance to the advertised photos, let's see how it goes.
  34. spludgey

    ANY NEW BATTERY DEALER RECOMMENDATION??? SHENZHEN BASEN ON MY NAUGHTY LIST

    It's too good to be true. I ordered from her and they're in terrible shape. :(
  35. spludgey

    What refund would you ask for?

    No, unfortunately not. But I'm hoping that Alibaba will see that it's not reasonable to specify these as grade A.
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