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18650

  1. C

    Buying 18650 battery cells

    Hi All, I'm a university student creating a start-up utilizing renewable energy. I'm based out in Adelaide and i'm interested in buying some individual 18560 cells. I know I could just buy another brand, but i'm a tesla fanboy. Even if the batteries are used just let me know what capacity...
  2. AutobahnEV

    Tesla Model S Model X OEM 5.3kWh 22.8 Volt 18650 Lithium Ion Battery Modules

    AutobahnEV here, Finally have a listing up for individual Tesla modules. I will include the eBay listing and Instagram post Would like to do sales through here or paypal Please ask any questions you may have Cheers Tesla Model S/X OEM Lithium Battery Module 2.8V 5.3kWh 18650 444 Panasonic...
  3. EV-Tech Exp

    Tesla Module Explained

    I'm currently creating a video series to review Tesla's battery technology in detail; this is the second video is all about Tesla's module. I appreciate all the feedback you knowledgeable folk have to offer, and hope you find it interesting. Let me know if you have any questions!
  4. widodh

    DIY Lithium battery project(s)

    As I couldn't find a thread about I figured I would start a thread about it. For the past few weeks I've been working on my first DIY Lithium battery project using 18650 cells from Samsung. I have a old Chinese e-scooter which had 4 12V 40Ah batteries and after they died I decided to replace...
  5. EV-Tech Exp

    A review of Tesla's battery technology

    I'm currently creating a video series to review Tesla's battery technology in detail; the first video is all about the cell and it's format, size and chemistry. I've been lurking on these boards for some time but thought it was about time I signed up, starting posting and hopefully this...
  6. K

    Will there be a P115D or P130D?

    If so, any guesses as to timeline? Is Tesla going to start using the new battery in the Model S? I just bought a 75 this year and I love it. I'm already thinking about upgrading to the P100D, but if something better will be out soon I'd rather wait.
  7. Cloxxki

    Next generation 2170 cell battery packs

    Hear me out now. Apart from being cheaper to produce (/kWh) the new 2170 cells will allow for more capaciy in a given pack size. 40% more than the 2012 85kWh pack, according to JB Straubel. And that may well be without the extra utilization of 5mm head space through the longer cells. So, close...
  8. H

    18650 Winding Speed

    Hi Guys, we try to build a cost model for cylindrical EV-Batteries in one of my university classes. From a manufacturing perspective, the achievable winding speed of cells is going to be an important factor. Therefore: does anyone of you know how long it takes to wind a 18650 jelly roll? Or...
  9. Patrick0101

    What Cells Will Model 3 Use and How Many Will It Have?

    Elon Musk said that Model 3 will not use the same 18650 cells that the previous Tesla cars have used. This blog says they will use bigger cells and extrapolates that they will use less than half the number of cells of MS or MX. Cars With Cords: Tesla Model 3 Will Have Half The Battery Cells Of...
  10. slyastro

    Battery 101: 40 000 cycles with Panasonic 18650 cells?

    Electrical Engineer, Frank Boucher, just wrote an interesting and easy to understand technical article about Panasonic NCR18650B Cells. He also explains why a EV battery pack will be good for much more than 500 cycles, but up to 40 000 cycles (by keeping the pack between 30% and 70% SOC). That...

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