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    Water inside my hub motor

    So the other day the front wheel of my xiaomi m365 (hub motor) started to get stiff and vibrate during ride. Then in the following rides it started spinning normal, then again stiff in the middle of the ride. Ive opened the hub, and water came out of it as i opened it. The inside was wet, and i...
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    BMS low cutoff voltage rather low

    Hi, I'm building a 10S4P pack for an escooter, and im going to use the BMS in the photo: The BMS low voltage cutoff is rated at 2.8v, which sounds too low to me, how do I make the LVC higher (do i need to add another component)? And what is the recommended LVC? I will mention that this pack...
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    What drain rating (18650) is sufficient enough for a battery pack for a 250W hub motor?

    Hi, I intend to build an external battery pack for my Xiaomi M365 (250W hub motor), to connect in parallel with the existing one. I know the one it currently uses are LG MG1 with a 10A max drain rating, but for that specific application, can I get away with 18650 cells with a drain rate of...
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    Xiaomi M365 and battery modification so it can be taken on flights

    Hi all, I'll start with a quote from another thread (sorry cannot remember the person's name): "Iv'e found the Achilles' heel of traveling with an E-scooter. Flights.". As we all know, most airlines limit carrying of spare lithium batteries to 100WH of power. But Iv'e also noticed that most of...
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    18v drill motor for a short distance oriented board?

    Hi, Iv'e thought about making a small simple board to help me get into the metro station and back, and one i can take with me to cover small distances when my main board is too bulky to hang with. I need it to be small, light weight, don't have to be too fast (15km/h will be perfectly fine). I...
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    Assorted Technical Questions

    Hi, Instead of bothering you all with tons of threads, i thought i might just gather all my newbie questions in one single thread :) 1) This is an idea + a question: Thought about implementing a honk on my remote, have anyone ever done this before? Because the board is relatively...
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    Xiaomi Power Bank as E-Skate Battery Pack?

    Hi, Iv'e noticed you can get this 10,000mAh (5V) power banks pretty cheap: http://www.banggood.com/Original-XIAOMI-5_1V-2_1A-10000mAh-Power-Bank-For-Smartphone-p-977406.html?utmid=57 (Will be 11.99$ in a promotion next week). Why not get a bunch of them (They also weigh only ~200gr a pack) and...
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    Trying to understand this basic power calculation

    hi, I'm new here so sorry if this question sounds trivial, but i want to understand this basic calculation about maximum power in motors. i see many brushless outrunner motors rated at a couple of thousand Watts @ 6S (e.g 22.2v), and i understand the basic concept of V x A = P, assuming we...
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    Skatey 600 — Replacing The Batteries To LiPo

    hello, new here, just purchased the Skatey 600 the other day, and i am quite impressed for this board i bought for 450 Euros. Problem is, it is quite heavy at around 25KG due to the use of a brushed motor and 3 12V 10Mah Lead Acid batteries. I really love it but it's quite bulky at this...
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