battery upgrade for old leafs?

Discussion in 'LEAF' started by Enrique Segre, Jan 18, 2018.

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  1. Pushmi-Pullyu

    Pushmi-Pullyu Well-Known Member

    Reliably functioning third-party battery packs would require the BMS to be programmed exactly as Nissan programs the BMS in its Leafs. That almost certainly involves proprietary software.

    Not likely to happen; not likely that Nissan will license its software to an aftermarket supplier.
     
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  3. Kenneth Bokor

    Kenneth Bokor Active Member

    However, companies are looking to do it so they must have something to offer.
     
  4. Pushmi-Pullyu

    Pushmi-Pullyu Well-Known Member

    Well, if I'm wrong, I'm wrong. Wouldn't be the first time! I'll be quite interested to see if some company actually offers a newly made battery pack for the Leaf, rather than just refurbishing salvaged battery packs.

     
  5. Kenneth Bokor

    Kenneth Bokor Active Member

  6. Pushmi-Pullyu

    Pushmi-Pullyu Well-Known Member

    I see all kinds of red flags from looking at the promo on that website. Red flags such as "Much of the technology we are using will be revealed at a later date as we are still working on the patenting of our solution." I read that as "We haven't figured out how to build these things yet, but we hope we will eventually be able to do it, if we can get enough investment money thrown at us."

    Another indication that they don't know what the heck they're doing is this claim: "This pack will use a Lithium Ion technology, not unlike the cells used in Tesla’s battery packs."

    Ummm... don't tell them, but pretty much all BEVs being made today use lithium ion batteries. That includes the Nissan Leaf and all of Tesla's cars.

    I absolutely would not give this company any money, not even $1 for a reservation, unless and until I saw some reports from actual retail customers talking about how well -- or how poorly -- these packs work. And that's assuming that they really will produce a product; that this isn't yet another investment scam. Frankly, I suspect it's the latter.

    Like I said: Lots of red flags there at that website.

     
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  8. Kenneth Bokor

    Kenneth Bokor Active Member

    You are right to your thoughts, but this is only one example. More popping up.
     
  9. CDR Shepard

    CDR Shepard New Member

    Here's a fairly advanced hobbyist who has evolved into a business. He has a 2011 Leaf, and has been upgrading its battery continuously for years now. His current range is something like 400km.

    AFAICT, he's replaced his 24kWh battery with a 40kWh, and added a bunch of modules into the trunk section behind that half-bulkhead thingy, then put a carpeted board on top of the whole affair.
    Look in his channel and you'll see almost everything about the process, and the bits he's had to build, he also sells.
    Got nothing but kudos and admiration for this guy. Hoping to do it myself as my current battery starts to get creaky, but my 2011 has a 2015 24kWh with 11 bars after almost five years of use.
     
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  10. Corrado5834

    Corrado5834 New Member

    It's called MUXSAN, to be found in Delft, the Netherlands.
    They have all sorts of swaps and upgrades now:

    https://muxsan.com/
     
  11. leafchik

    leafchik New Member

    I saw battery swap from 24 to 40 kWh, but the problem was with indication of range. You need new FW for battery controller, but there is not exist (or I don't know about it).
     
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  13. Corrado5834

    Corrado5834 New Member

  14. leafchik

    leafchik New Member

    It's not what TS looks. He want remove old battery and install new or used but alive module. For example this used battery with 45k mileage much more cheaper than extenders.
     
  15. Corrado5834

    Corrado5834 New Member

    They do swaps as well not just extenders, just go check their site and Twitter account.
     
    leafchik likes this.
  16. leafchik

    leafchik New Member

    I contact them, but they work only in NL.
     
  17. Corrado5834

    Corrado5834 New Member

    Yes, unfortunately.
    There have been rumors on Tweeter about the possibility of exporting oversea their technology.
    Stay tuned.
     

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