Power in Flux

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Type: Posts; User: Spoonman

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    It doesn't. Not in light duty roles at least....

    It doesn't.

    Not in light duty roles at least.
    Some potential in agri, freight and shipping alright but I'd be surprised if there weren't better options by the time it's actually anything close to...
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    The board you have is very clearly marked for...

    The board you have is very clearly marked for 60A, however given it has failed, I suppose the question is warranted.

    https://bikez.com/motorcycles/vmoto_e-max_120s_2014.php

    Based on the spec...
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    Good man! That's outstanding service from a...

    Good man!
    That's outstanding service from a small machine - well done!
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    Patents cover 'intellectual property' so yes,...

    Patents cover 'intellectual property' so yes, Ideas basically.

    Whoever had the idea first, and the bankroll to patent it, owns it - anyone infringing on that 'idea' becomes liable for royalties to...
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    It's all crackin' work but that - that is just...

    It's all crackin' work but that - that is just exquisite!
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    Makes great sense for trailies and trials - waste...

    Makes great sense for trailies and trials - waste of time outside of that.
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    Oh my goodness that is sexy! Give us a better...

    Oh my goodness that is sexy!

    Give us a better look at that transfer box - that is some piece of art right there!
  8. Howdy Matchboxed - best to take a look around...

    Howdy Matchboxed - best to take a look around and see what takes your fancy and matches you expected budget; there are lots of ways of going about it depending on what you want to spend and what...
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    PICS!! :D

    PICS!! :D
  10. Howdy, You're pretty much on the money with...

    Howdy,

    You're pretty much on the money with regard to the hub motor alright.
    They're pretty much ideal for lower speed applications where the unsprung mass is less of a concern, and there are...
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    oh hubba hubba - that bike has always given me a...

    oh hubba hubba - that bike has always given me a horn!
    Utterly gorgeous machines!
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    Oh that is a very fun looking piece of kit!...

    Oh that is a very fun looking piece of kit!
    Welcome aboard.
  13. Thread: Charger

    by Spoonman
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    <iframe src="https://giphy.com/embed/10hvUFWkQEmoCs" width="480" height="270" frameBorder="0" class="giphy-embed" allowFullScreen></iframe><p><a...
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    Sorry, you're right - I was reading that all...

    Sorry, you're right - I was reading that all wrong. Thought that bottom line was stats for 10 modules in parallel.
    In that case you're golden
  15. As I said, just a baseline to tailor from. A...

    As I said, just a baseline to tailor from.

    A centralised motor is definitely the better way to go for higher performance, but there's little benefit to it beyond that IMO.

    Consider that you're...
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    Looks like max 4C discharge on those Energy...

    Looks like max 4C discharge on those Energy modules so your 10S arrangement would peak at 60A, whilst your 5S2P arrangement could only handle 120A.
    The Power modules appear to manage 8C which would...
  17. Looks like an idea candidate for a hub motor...

    Looks like an idea candidate for a hub motor based on that usage profile.
    Simple, costs effective and space efficient.

    Biothunder has a well documented spec here for his effort which will...
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    No chance.

    No chance.
  19. Definitely buy your battery last. The rest of...

    Definitely buy your battery last.

    The rest of it you can buy as you choose but batteries are changing all the time and the project is likely to take you at least a year before you're anywhere...
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    Right so first - you know that you've only got...

    Right so first - you know that you've only got ~90Vnom there right? About 103.5V hot off the charger?
    Those are LiFePO4 cells, so they're nominal at 3.2V not 3.7V.

    As for the Zeva modules - the...
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    Your connection plan looks fine, no problem...

    Your connection plan looks fine, no problem there.
    Serious lump of a pack that!
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    WoW! I had heard they were refocusing but...

    WoW!

    I had heard they were refocusing but that's quite a statement right there.
  23. Thread: Podbuilder

    by Spoonman
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    67,433

    I'd consider a 'cable connected' lockout on the...

    I'd consider a 'cable connected' lockout on the MC contactor - don't want someone trying and drive away while she's plugged in.
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    https://media.giphy.com/media/kWMI4jZKpgTJloYPO7/g...

    https://media.giphy.com/media/kWMI4jZKpgTJloYPO7/giphy.gif
  25. Thread: Podbuilder

    by Spoonman
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    Yeah that makes sense now alright - sounds like...

    Yeah that makes sense now alright - sounds like they've an N-channel FET driving the contactor coil.
    Assuming your HV and 12V circuits aren't isolated, you likely need the voltage at the common...
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