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  1. M

    KELLY CONTROLLER and DC/DC converters.

    SOLD.
  2. M

    Insuring an e-motorcycle in Ontario, Canada

    I called an insurance company when I started shopping for motorcycle insurance a month ago. Out of curiosity, I asked how much to insure a Zero SR in Ontario. The answer was ''oh we don't insure electric motorcycles''. Since I don't want to spend a lot of time on the phone calling many...
  3. M

    2007 Yamaha YJ125 Vino conversion

    It's a father/son project, I want my 12 year old boy to learn to use some tools and do mechanical work in a safe way. It's the blue scooter in front. And this is what it looks like at the moment. We have a bunch of parts that we cleaned up and took pictures of, if we are able to sell all...
  4. M

    Cell-Log external alarm/warning

    I searched and found nothing on how to have an external alarm connected to a Cell-Log, or a warning light coming on as a warning of under voltage or vice versa. I found this on the net and tried it but I could not make it work for some reason. Can someone explain if it can be done and how...
  5. M

    Which BMS?

    I searched this forum for some input on BMSs. I got spooked by the EVTV incident. I have a heavy scooter, the controller is a Kelly KLS7250D, the battery is a 20S made of Nissan Leaf modules, the motor is a 5kw hub. So I searched what is available now for BMSs and found something that seems to...
  6. M

    Domino throttle micro switch - what did you do with it?

    Like the title says. I have micro switches on my brake levers to activate the brake light and the regen so I'm wondering what to do with the switch on my new Domino throttle.
  7. M

    5KW or more in a 10 inch scooter rim.

    I recently overhauled my scooter and put in a Kelly KLS7250D sinusoidal controller. I need a new hub motor to go with it. I've been searching for a long time and the options for 5KW and more in a 10 inch rim are very limited. Kelly has a 6KW motor in a 10 inch rim, right now, it is the only...
  8. M

    Advice needed - need new controller.

    I ride a heavy scooter limited to 32 km/h by law and the controller stopped working last week after many years. I don't want to fix it, I want to upgrade to a much better controller that would help me transform this slow scooter into a low speed motorcycle in the future (60 to 70 km/h). My...
  9. M

    Looking into installing a BMS

    I have been bulk charging everyday with a balance charge once a week to monitor how my cells are doing. It's working but after doing it for three years, I am looking for an easier and safer way of doing it. A BMS is the answer but which one. Here's my set up: - Heavy scooter with heavy guy...
  10. M

    Ignition switch (anti spark)

    Here's the problem, I ride an electric scooter and it has an ignition switch to turn the power on. I'm pretty sure that the ignition switch is meant to work on a 12V system like on an ICE motorcycle. But the full voltage of the battery goes through it so when I turn that key to the ON position...
  11. M

    18650 cell battery in series with Hobby King lipos.

    I was sure there was a thread about that but I couldn't find it. I have a 16S20P battery made from Makita 18650 cells. I charge it to 64V and don't let the voltage drop below 56V. I tested that this gives me 23Ah to work with. I have two speeds on my controller, low and high. I always use the...
  12. M

    EGO 56V 4Ah lawn tool Lithium Ion battery

    I searched for this in here but couldn't find anything. What's in it you think? 18650 cells probably but which ones? The 4Ah model is $200, the 2Ah model is $130. I can't afford to get one right now just to open it up but I'm sure one of you can do it.
  13. M

    My motor stopped turning.

    What can be the problem with this? When I twist the throttle, the motor does nothing. I turn off the system and when I turn the motor by hand, it feels notchy, like the magnetic field is wrong. If I unplug the yellow phase wire, the notchyness is gone and the motor turns freely by hand. What do...
  14. M

    Top balancing Lithium cells with Nimh cells

    Someone explain this to me please. This is a 45P module of 18650 cells top balanced by three Nimh cells. How does this work?
  15. M

    How to measure my controller's shunt value?

    Exactly like the title says, I don't know how and would like to know. Thanks Ray
  16. M

    Help needed with scooter motor

    It's a 500w 48V scooter hub motor. It's running on 74V30Ah Konion battery. It's sealed and liquid cooled with synthetic ATF. The motor has 6700 km on it, I just fixed it with new hall sensors and bearings. It ran great for a week and all of a sudden, it has no torque. Very sluggish off the line...
  17. M

    Help me clean up this spaghetti mess

    Once a week, I balance charge this 20S20P battery I made out of Sony Konion cells. Underneath the shrink wrap, the battery is split into four 5S bricks with positive, negative and balance wires coming up under the seat. I used to charge with two 10S chargers that could take two 5S packs each...
  18. M

    Large lipo cell

    I saw this on the DIY electric car forums, 3.7V 43Ah Li-Polymer battery Cell. I'm wondering if anyone here has some info about them or some experience with the vendor. The only info I could find about them other than what's in the thread was a price of around $61 per cell...
  19. M

    digital speedometer on E-scooter

    I need help please. I have this speedometer on my moped, the problem I have with it is that the cable that goes from the speedo to the wheel has broken three times. So I got a used digital speedometer like this one, With this digital speedo I hope to get rid of that cable. My problem is...
  20. M

    How hot is too hot?

    I recently went to 74V on my e-moped. Although I don't think that I'm having heat issues, I would like to get the expert's opinions on how hot the components can safely get before getting damaged. Mainly how hot can the controller's casing get? How hot can the motor windings get? How hot can the...
  21. M

    Lost my regen - EDIT: Got it back!

    I sent a PM to Lyen about this but I wanted to post it publicly also in case someone has the same little problem. I run the Lyen 18fet controller and I recently went from 51.8V to 74V. My regen worked very well before but after the battery upgrade the regen doesn't work. I tried the three...
  22. M

    What to do with this motor

    I had trouble with the motor on my scooter recently and after looking at different options, I decided to just go the easy route for now and replace it with the same thing from the dealer. So I have this extra motor lying around in pieces with two magnets that are damaged on it. I'm thinking that...
  23. M

    Noisy motor.

    Can someone tell me what's wrong with my motor? It's a 500 motor from Greenwit Technologies. The noise started all of a sudden last week. The motor still runs but the noise is annoying. The noise stops when I get up to around 38 km/h, then it fades away. It starts back up if I apply the brakes...
  24. M

    kill switch and Lyen 18 fet controller

    I sent a PM to Lyen about this but I'm hoping that someone can help me with this so I can maybe fix the problem today instead of next weekend. I have kill switches on the brake levers. I apply the brakes and it kills the power to the motor. That's the way it was with the old controller. I can't...
  25. M

    Razor E200 gone Lithium

    After the Razor battery charger failed to peak charge and over charged the SLA batteries in my son's stand up scooter, this is what happened. I got those out of the garage and made a 7S6P 25.9V 9Ah battery out of left over Sony Konion 18650V cells. I JB Welded 5.5 mm bullet connectors and a...
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