Power in Flux

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  1. Do you have a link for the Flatpack 1800W? I'd...

    Do you have a link for the Flatpack 1800W?

    I'd suggest that you consider using the terminology "Leaf Modules" or "Leaf Batteries". Each of those modules has 4 cells in there as a 2s2p setup. 14s...
  2. I don't know, you're the one who brought up...

    I don't know, you're the one who brought up building something with Elcon flatpacs :) You'll have to see how they communicate. I've only worked with flatpacks you set via potentiometer. I know...
  3. Set the charger output voltages that of the final...

    Set the charger output voltages that of the final voltage you want. The power supply voltage will be that of the battery, so it'll start out low, and since there's a voltage difference between what...
  4. Most, if not all, chargers we work with these...

    Most, if not all, chargers we work with these days are CC/CV with a setpoint. for a 6-7kWh pack, a 1000W charger would take about 6-7 hours. You can double them up and do it in half. Just depends on...
  5. For lithium, you want CC then CV. They go...

    For lithium, you want CC then CV. They go constant current as the voltage of the pack raises to a certain point, then CV and the current tapers off and eventually stops.

    There's Elcon/TCChargers,...
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    Ugly.

    Ugly.
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    Here's the PDF it referenced, which outlines much...

    Here's the PDF it referenced, which outlines much of what is said in the article, with pics:
    http://www.aeroelectric.com/Reference_Docs/Switches/CH_Switch_Training_Manual.pdf
  8. I found some nice 125VDC rated switches that I'd...

    I found some nice 125VDC rated switches that I'd like to offer to purchase for you, if that works. Just need a shipping address, and number of switches. Sounds like you need one for F/R, and one for...
  9. REPOSTING what I wrote on diyelectriccar.com ...

    REPOSTING what I wrote on diyelectriccar.com

    NOTE TO ALL: He has the same topic thread going on over on diyelectriccar.com and it's all eerily similar.
    Click here to view the thread

    ...
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    I can ship internationally if you need help. I...

    I can ship internationally if you need help. I may have some on hand.

    Remind me the motor and controller you're using? And battery voltage and max battery current you wish to use?
  11. If you don't want our advice, why ask for it? ...

    If you don't want our advice, why ask for it?
    This is my last comment on the topic.

    I'm a degreed Senior Electrical Engineer and design systems all day long using rated components for the...
  12. Partially correct. I've done anything from 24V...

    Partially correct. I've done anything from 24V e-bike controllers, to Kelly controllers, to Curtis and Sevcon controllers all the way up to Rinehart PM100DXR's. It's just been a long time since I've...
  13. I don't know that I'd recommend using that...

    I don't know that I'd recommend using that controller if they're truly 60V.

    They're usually 12V for the forward, reverse, brake, etc. Only KSI (key on) is rated for full pack voltage.
  14. ANN and CNN are just different brand's version of...

    ANN and CNN are just different brand's version of a similar fuse style that meet your voltage requirement.
  15. Yeah, that fuse is essentially the CNN or ANN...

    Yeah, that fuse is essentially the CNN or ANN style fuse I was talking about.

    ANN:
    https://www.allfuses.com/all-products?cat=150&manufacturer=29

    CNN:...
  16. Circuit breakers shouldn't be used as a means of...

    Circuit breakers shouldn't be used as a means of disconnect. They're not rated to turn things on and off. They're meant to break a circuit, and reset if needed. You can use them, but they're more...
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    Looks very Zero too (I know they partnered)....

    Looks very Zero too (I know they partnered). Pretty cool concept.
  18. Pretty good Ted! You learnded! hehe Basically,...

    Pretty good Ted! You learnded! hehe

    Basically, yeah, DC and AC ratings aren't the same. It specifically needs to say it can handle 60VDC or higher in order to use that safely. Another thing, is...
  19. I don't think you need water cooling really. The...

    I don't think you need water cooling really. The ME1507 is a good sealed, reasonably priced motor. Goes good with a Sevcon.

    For battery, I don't know that you'd need more than 2-3kWh if you're...
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    They're made for EV's. Used in formula cars and a...

    They're made for EV's. Used in formula cars and a handful of others. They're fine, i may be going a different direction though... not cause they're bad, but because I need something repeatable.
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    Both look fine now

    Both look fine now
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    Update from me, I started working with this guy:...

    Update from me, I started working with this guy:
    https://endless-sphere.com/forums/viewtopic.php?f=7&t=95067

    Hoping to launch a product in the next few months. Its bluetooth and Talks to Sevcon...
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    I doubt I'll ever do a bolt-on kit for...

    I doubt I'll ever do a bolt-on kit for motorcycles. The electrical can be a kit, but brackets, battery box, etc, that's all going to be custom for just about every motorcycle build. One guy wants a...
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    This dropped off a while while I was waiting for...

    This dropped off a while while I was waiting for some mechanical parts from a company in Latvia. I've been working with them a little on their Race Kart, and they make a really nice bolt-on kit for...
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    One thing to realize, is that the controller max...

    One thing to realize, is that the controller max stator amps is 660A. And the 475A is likely battery side. They won't ever be the same. The controller is a bit like a gear converting one RPM/Torque...
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