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EUC

Found 6 results

  1. So I bought a ninebot mini pro used. Short story the battery is dead, completely. I've taken it out and tried charging it. Nothing. Yes I know this voids the warranty but I didn't have it to begin with so... Oh, the infamous 4 red flashes on the battery and my research online suggest it's completely dead.. Does anyone know where I can order a replacement? Has anyone used moreformini.com before? That's the only one I can find.. thanks in advance for your help
  2. Handle is broken and I'm looking for a replacement. Has anyone broken theirs yet? This is what it looks like: https://drive.google.com/file/d/1w6cYqwNsx1ro4C-KLumL_yUuSve0jR0c/view?usp=sharing I'm not sure how to upload picts here
  3. Scratched up my Z10 pedals plenty and am looking to replace them and the trolley handle. Ninebot doesn't seem to be offering any official replacement parts unless I'm looking in the wrong place. Has anyone bought some off AliExpress or other sites? I'm a little sketched as I don't know if they are actually Ninebot official parts, and I'd like to trust what's under my feet at 27mph. Linked a couple below. Link Link
  4. I managed to lose the little rubber grommet thing that covers the battery screws on my Ninebot One S2, so I made a 3D printable copy. Posting incase anyone else runs into the same problem and has a 3D printer handy. You can grab the files + some more details on Thingiverse: https://www.thingiverse.com/thing:2783786 I printed it out of a rubbery TPU and it seems to do the job!
  5. I am asking 200 dollar each if you are interested. also i will throw a flat tire ninebot E+ for 100 dollar. the thing is you need to patch the tire yourself. if you are DIY person. I guanrantee it is working. I have been riding 2 month ago.
  6. Important part first: Here's how I fit replacement power filter capacitors in a KS-14C. It solves the problem of constantly bending the leads when you have to access the batteries, and shortens the distance between the second capacitor and the circuit board, which increases its ability to do its job. I came into possession of a faulty KS-14C from electricunicyclereview's closing, along with a new control board and batteries for it. It would turn on and run, but had very low battery and wouldn't accept a charge. When I opened it up I saw that the power filter capacitors were blown. I put the new circuit board in, and it would boot up but not balance or light up the battery indicator. It probably just needs to be configured for the first time, but I figured that since the original board was functional and just needed new capacitors, I'd try to fix it. I realized the replacements I'd gotten were slightly skinnier, enough to fit in the circuit board compartment lying flat. I mounted them as such, put everything back together, and it works! I also replaced the battery with 2 packs, and discovered it had a few bad cells after tearing it apart. The rest are good, so they'll be useful for other EUC-related projects. In researching the repair, I discovered that the capacitors are less effective the further away they are from the MOSFETS (in terms of electrical path) It has to do with impedance and smoothing the voltage ripple - I suspect the blown capacitors contributed to damaging the battery pack, perhaps being blown during an over-voltage downhill surge that then killed a few cells without the capacitors to smooth the spikes. I also learned that the wires between the batteries and an ESC should be as short as possible, to reduce impedance (which I understand to be a sort of "lag" between the voltage dropping and the batteries providing the amps to restore it, which the capacitors are there to fill in for) SO, it follows that shortening the battery wires as much as possible and installing larger power filter capacitors would be an overall "upgrade" to unicycle electronics, their robustness and its ability to handle bumps / uneven terrain without as much pedal dip, which is better for the unicycle and the rider. Thoughts? Some designs have up to 6-8" of wire that could be removed, and according to this forum post, that would be worth doing.
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