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68bugboy

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About 68bugboy

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  • Location
    Minnesota
  • EUC
    Minipro

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  1. The battery swap method works great! I was trying to avoid carrying another battery around, but with a draw-string backpack it was really no trouble at all. Took all of 4-5 minutes to do the swap. Easier and safer than building a battery pack. Here is my next question: When charging a battery not attached to the unit does the battery still balance the cells? Or does it need to be connected for the balancing?
  2. Maybe you are correct. What approach would you suggest to extend battery capacity?
  3. I was thinking about doing a pack with 15 batteries wired in series (15s1p). Question is, is there even a need for bms as it is only one group? Would the cells naturally balance during charging? Or do you need some kind of battery protection? If so, what would work best for this setup?
  4. I was reading another thread about making an external battery. It was talking about a compact BMS like in the picture below. Can anyone tell me where to get something like this? Brand, part number any info would be appreciated.
  5. Finally got to do the downgrade to 1.1.7 I don't have an android, so I borrowed one from a buddy. The app worked great! Just did a 16.75 mile trip. The 1.1.7 firmware is WAAAAAAAY better than 1.4.0 Pushback is much more mild, especially on up hills. Thanks MRN76 for a job well done!
  6. I was able to save a dead battery using this primitive method. The battery was only reading 4 volts. I touched the wires to the battery for about 5 seconds. Did it 3 times and plugged charger into the battery. Battery started flashing red/green. Then after 15-20 minutes went to solid red and fully charged. I think touching the wires to the battery terminals somehow wakes it up. Don't know how or why, but it worked for me.
  7. See this thread for more information https://forum.electricunicycle.org/topic/12816-minipro-intermittently-life-threatening-unsafe-veering-right/
  8. Does anyone know if you could swap motors from a Miniplus to a Minipro?
  9. What do you all make of this? https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F264265430482
  10. Here is what it looks like. It is under the shark fin on top of the platform. https://www.mini-j.world/mini-tech-en/parts-repair/steering-shaft/#replace
  11. I still think some thing is going on with the hall sensor. Mine did the same spinning while idle. Bouncing the unit around would sometimes stop it. I believe the bouncing would make the cold solder joint re connect for a short time until the next bump or jarring. Reflowing the solder on the hall sensor board fixed it. There are solder connections on both sides of the board.
  12. Does anyone know if the 320 & 260 have the same motors? Or are they different?
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