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  1. C

    What is this grey wire? Panasonic NUAO12C 250W mid drive motor

    I got an ebike with a bad battery, and I'm trying to fix it, looking at the battery connection, I got possitive/negative and grey wire. what the hell is that? and what kind of voltage would it take? see picture below. I tried connecting the battery without this wire and it doesn't work, the...
  2. C

    Charging scooter packs in parallel

    I have 3X scooter battery packs (36V) that I will wire in parallel to increase capacity and amp draw. Each of these 3 pack has it's own BMS, and also seperate charging port. Will I damage the packs if I charge from one of the charging port while they are still connected in parallel? Would the...
  3. C

    36V 250W controller replacement

    Hi Everyone, I managed to get an ebike off CL, but it has a bad controller (I tested it with another controller from my other ebike and it works). So I need a new controller, unfortunately everything is in Chinese, and I can't figure out what I need. I know that it's 250W and 36V. But 250W...
  4. C

    High Amp parallel charger?

    I got some knock off imax b6AC off ebay, and I was wondering if there's a higher current charger out there, this thing is capped off at 6A, even if I'm only charger at 1S. I'm doing test on 100-200 cells, and it's taking a long time to charge all of them up (worst part is the dam thing start to...
  5. C

    problematic battery configuration?

    I'm working with some 3.7V 18650, and I have to ask this question. A lot of time people would built a 9-10S pack for 36V. However my cheap old balance charger can only do 6S max. to get a 9-10S i would have to pay more (I payed 25~ per 80W balance charger). Can I do 3X 12V pack? say 3-4S, and...
  6. C

    Need help with DIY battery pack.

    I've read/watch many of the contents regarding making DIY battery packs for ebikes ect... For the most part the configuration that most people choose is some where along the line of a pack in combination of series + parallel connection to get the desire voltage and amp. However that type of...
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