10+ Mile V1... We can do it :)



  • I love how on this forum there's loads of guys not afraid to innovate and modify your boards. I will be watching this thread carefully. Best of luck I'm not that brave lol.



  • Damn, I would love to see this. Quick questions @Zen-Potatoes and anyone else that can answer...

    If you do redesign the back end and have something that juts out a bit/removable... Will that change in the board's weight mess with the calibrated auto balance? As well as make it vulnerable to water damage?

    I would love to see the fender attachment battery that perhaps connects to the original battery and acts as an extension. Would be great to feed a flat wire through the top or side of the footboard directly into the battery.

    I don't know shit about electronics or how this board works btw. Just want to see this magic work!



  • @Zen-Potatoes I def recommend checking out electric-skateboard.builders and maybe posting about this project. The guys there seem to know their stuff and could probably help make this happen.



  • @braswell I'm fairly sure the self-balancing mechanism is completely based on the tilt of the board, and has nothing at all to do with weight (and definitely not enough that a few ounces would matter). Gotta remember, most of the weight that's getting balanced comes from the rider, and the board has no way of knowing how much weight that is... it's just trying to level the board by going in the direction of the tilt of the deck.



  • @braswell said in 10+ Mile V1... We can do it :):

    If you do redesign the back end and have something that juts out a bit/removable... Will that change in the board's weight mess with the calibrated auto balance? As well as make it vulnerable to water damage?

    Pretty sure the auto balance is gyro based.. otherwise incorrect shoes could throw it off... but i could be wrong... pretty much everything I do in life is based on assumptions, guesses and random thoughts... :)

    Also yeah... Plan 2 to redesign the back end, I really need to state is a HUGE PROJECT.. the main one being the connectors so that it can disconnect easily and that the power can NEVER fail as that would result in crash and thats just unacceptable, plus there are also just so many other things to consider in a good design... it really is months+ of work to get right & it needs to be done right...

    That's why the simplest solution to the range issue is just to use the exact same cells voltage wise with the same spec but just greater (mAh) capacity... 1 day of work max to build new battery cell and fit to OneWheel....



  • @Zen.Potatoes said in 10+ Mile V1... We can do it :):

    pretty much everything I do in life is based on assumptions, guesses and random thoughts... :)

    When I die in Glorious battle I will ascend to Valhalla!



  • 18650 = 18m diameter x 65mm long
    26650 = 26mm diameter x 65mm long

    Are you sure they will fit?

    Tight fit is not advisable. Cells grow when hot, squeezing them can cause failure (see Samsung Note 7 problems). 16 fully charged cells going into thermal runaway can burn your house down.



  • @borist said in 10+ Mile V1... We can do it :):

    Tight fit is not advisable. Cells grow when hot, squeezing them can cause failure (see Samsung Note 7 problems). 16 fully charged cells going into thermal runaway can burn your house down.

    I think this is less of a concern if using LiFePO4 batteries (as ship with the OneWheel) than in LiPo, or Li-Ion.



  • @borist as Mekon said, it shouldn't be an issue with the correct type of HIGH QUALITY batteries, which these will be. Plus they should fit as currently there is about 15mm space between each battery (width wise) and 10+mm at each end.. so it will be a good fit but they shouldn't be squeezed at all and still have a mm of play at each side/top... but if not... then this is a simple redesign of the battery end tray (just a basic copy) but with a few extra mm space where required...

    my main concerns is

    • will BMS still work and charge correctly with increased mAh cells..

    I just want more range damn it :D plus in the UK it takes 40 mins to charge not 20 so waiting around is a pain....



  • @Zen.Potatoes maybe this will help you:
    https://youtu.be/Iw2cKDn6KPs



  • @borist said in 10+ Mile V1... We can do it :):

    18650 = 18m diameter x 65mm long
    26650 = 26mm diameter x 65mm long

    Are you sure they will fit?

    Tight fit is not advisable. Cells grow when hot, squeezing them can cause failure (see Samsung Note 7 problems). 16 fully charged cells going into thermal runaway can burn your house down.

    ^ So much this. Fun fact: the zero at the end of the number indicates cell shape, in this case they are 'O' shaped.



  • Something to think about is whether or not the current battery assembly is a structural part of the OW before trying to design a removable pack.



  • @wr420 The battery pack is very tough and although the top part is metal the whole assembly is def structural, thats why i believe the only 3D printer I believe is up to this task is [https://markforged.com/](link url) as it can print parts re-enforced with carbon and Kevlar.

    That's why I really don't want to go down that route if at all possible as it's a huge expensive and time consuming project to say the least.

    That's why I'm really hoping to just swap out the 18650 for 22650 batteries and job done...



  • Any update on this?



  • Guess not?



  • @enjoi408 In order to make a safe and reliable modification to the board, we probably need someone that has experience with electromechanical devices, preferably involving vehicles(or motors) and lithium batteries. Some mechanical design would go into this project as well.
    //
    Again, this is considering that the swap from 18650 to 22650 isn't an option. @Zen-Potatoes



  • I don't see someone with the knowledge to build a battery pack not being able to pull this off. I have a place near me called Starcraft Electronics. I am going to have to make a trip up there to ask them. I'll bring my board. Let us know if they are 18650s when you get into the pack. Damn, if this works I'm going to have to get new skate shoes with cushy insoles.

    Also, very important, a guy that I talked to on an electric bike said that when you are buying batteries, do not buy the cheap Chinese stuff, buy Panasonic 26650s.



  • @Earthpilot said in 10+ Mile V1... We can do it :):

    k them. I'll bring my board. Let us know if they are 18650s when you get into the pack. Damn, if this works I'm going to have to get new skate shoes with cushy insoles.

    That's a good point about cushy shoes, the foot fatigue would get ridiculous on a long ride



  • Thats probably how they came up with the origional range in the first place. No one could ride any longer. lol



  • @wr420 I could. I used to ride all day. A few years ago, before my corporate job and reality set in, I would ride on my college campus all day. Literally 12 hour days spent riding, charging, studying, repeat.
    //
    I'd kill to be able to do that again......


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