Power in Flux

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Type: Posts; User: Spoonman

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    You are using the word 'Cells' in reference to...

    You are using the word 'Cells' in reference to what are in fact more correctly described as 'Modules' - this is the source of the confusion which you outline farther down.
    That point aside, the...
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    Welcome aboard! Plenty of inspiration available...

    Welcome aboard!
    Plenty of inspiration available here alright - sidecar should make for a very nice project.
  3. Always smart to let the wife win. ;)

    Always smart to let the wife win. ;)
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    Only goes up to 120V. :(

    Only goes up to 120V. :(
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    Ooof - that's a lot of weight a long way off the...

    Ooof - that's a lot of weight a long way off the ground.
    Wouldn't fancy that one at low speeds.
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    Literally just finishing up another one of these...

    Literally just finishing up another one of these this evening - latest one had a Zeva BMS as part of the deal and I got some learning related to that along the way.
    Worth noting that I've found the...
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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!
  14. 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
  16. 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.
  19. 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
  21. 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...
  23. 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.
  25. 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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