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  1. A

    improving standup scooter steering trail stability

    So I've custom modified a scooter similar to this: to go about 50mph. However, at those speeds the steering is extremely sensitive. I feel I need to have an extremely careful and firm grip so I don't twitch in the slightest otherwise I could crash. For stability at high speeds, I need more...
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    openprop help

    Does anyone have experience using openprop? I have some questions. 1) What exactly does the ship speed parameter do in the GUI? There are no other parameters, like ship size or weight or drag coefficient or anything. Just speed, so how does only having the speed parameter provide any useful...
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    bluetooth BMS?

    Has anybody used a BMS like this: https://www.aliexpress.com/item/20S-50A-2017-new-Li-ion-smart-bms-pcm-with-android-Bluetooth-app-UART-correspondence-bms/32809939362.html? Its bluetooth enabled with an android app so you can configure everything in software, as well as monitor pack voltages...
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    soldering vs spot welding debate

    I'd like to open this discussion because with my experiments and observations, I'm now convinced that soldering is ok. I'm willing to be proven wrong, but take my following observation: The heat under a weld is so hot, it melts solder. I can take heavily tinned wire, place a nickel strip on top...
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    multiple chargers for a single battery?

    I've seen a single chargers charging multiple batteries in parallel...but can you use multiple to chargers to charge a single battery faster? For example, if I have 2x250W chargers, but I only use one of them to charge a pack. Can I wire my chargers in parallel to give 2x current into a single...
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    788H welder pen connection?

    I bought a sunkko 788H. Where do you attach a welding pen? It doesn't have specific connection points, so I thought I could attach here: But then the weld is highly underpowered and pretty much useless. Any ideas?
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    planning/building 1st pack

    In preparation to building my first pack, I've been doing as much reading as I can. I was wondering if anybody could double-check my plans and answer some of my questions. My cells are 18650 samsung 30Q, and plan for my pack to be 20s6p As I understand it, I want to ensure that all current...
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    battery authenticity?

    I ordered a bunch of samsung 30Qs from China. Upon arrival, they look like this: Are these authentic? There is no other writing/labeling other than that homebrew sticker label. In reality, I don't even care about the brand necessarily, as long as the capacity, cycle life, and discharge rates...
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    scooter build

    This is my scooter. Got it off craigslist for $100. I removed the motor and wheel. The wheel bearings were completely missing :lol: I've read through ElectricGod's threads and comments and decided on going Big Block for my motor. It's probably more than I'll need, but it seems like nobody has...
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