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  1. veloman

    Infineon controller with CA plug

    My old 12 fet infineon controller has been acting up when the CA is connected. Who sells these nowadays? It needs the CA direct plug connector. I'm only running 20 amps, don't want a big expensive controller.
  2. veloman

    Hall throttle issue, signal voltage too high?

    Motor starts creeping upon powering on controller. Wires are correctly matched. Signal voltage with no throttle depressed is 0.85v. Throttle operates normally when depressed. It seems I need to lower the base signal voltage? How do I do that? Controller is a Kelly sine wave. Motor is large...
  3. veloman

    What type of motor for a mini dozer?

    I'm looking for expert opinions on what type of motor system would be suited for an application where the motor and controller will see high current near 0 rpm. It will be geared for very low speed. This topic is not about gearing. Top speed is 3mph, but it will see speeds down to 0 at full...
  4. veloman

    13s jst balance connectors

    I need 10 male and 5 female 13s jst-xh balance connectors. Either bare or with wire. What's a good source for jst-xh. Mouser is not looking like they have it. I'm trying to put 5, 13s packs in parallel, using one bms. I could get by with any other small style 14 pin connector (5 of male and...
  5. veloman

    Does this look like electrical failure?

    A customer returned this charger I sold them, claiming it overheated and melted the wires. I opened the case and it looks flawless inside. Is it me or do these wires look like they were cut? I just don't see melted insulation anywhere. This customer has said some conflicting things about how...
  6. veloman

    Wholesale/distributors in the US?

    I'm trying to find distributors (not retail sales) for small ev related parts. I've spent a lot of time searching online and I really can't find much other than retail, and of course buying directly from the manufacturer (which doesn't help my current situation). When I search wholesale...
  7. veloman

    Non-China built chargers?

    I'm looking for a low power charger that is not manufactured in China. The ones in the US are pretty much all high end and not for the small ev market (no surprises there). It doesn't need to be made in the US but I'm trying to stay away from China. Thanks,
  8. veloman

    New electric motorcycle shop in Austin TX

    I just took a test ride on one of the electric motorcycles at #zbikezatx in Austin tx. They are a great value at $4300 for the base model. Perfect city transportation. Good quality components and fill a much needed gap below the higher end well known brands like Zero. They use one of the large...
  9. veloman

    Battery in series with charger?

    Okay this may seem odd, but I want to know if there is any reason this won't work. I have a large 50ah 68v battery that is on my emoto which rarely gets ridden. It is trickle charged by my solar panel. I do have numerous small 72v batteries that I need to charge on a daily basis (for my lawn...
  10. veloman

    Delivery/courier with an ebike

    Has anyone done it? I am going to test it out soon. I just like riding my ebike so much that I want to get paid for it and do more miles. I also know my city really well for getting around, all the best routes. It seems that for the typical messenger, an ebike is not common to use. I realize...
  11. veloman

    Rear tire punctures

    Yesterday I got a razor blade tip in my rear hub wheel, and today it was a nail. I use a Schwable Marathon tire and tire liner. I've been thinking about why punctures happen as often as they do. It's not like razor blades and nails are sitting straight up on the road. I believe it's because...
  12. veloman

    Wet weather transportation idea

    With the winter coming, that means more rain for my area. And I've been lucky to finally get a job, so I need to make sure I can get to work in bad weather. I sold my car in 2014 when I moved in with my wife, who has a car. So the situation is: - one car between the both of us - we work in...
  13. veloman

    Adding assist for commute to mtb trails

    I want to add power to my normal mtb so I can get to the trails without spending too much energy on the road. I don't need a lot of power, even 300w peak/200w continuous would be enough. My restrictions are: - low budget - I don't want to put much money into this. - convenience - I don't want...
  14. veloman

    Brushed controller as dc-dc converter?

    So I got this wild idea. I want to keep a 12v lead battery charged, using my 60v ebike battery. With a 60v brush controller and throttle I would installl a blocking diode so only current could flow to the 12v battery. Then set throttle position so the controller outputs 14v. The controller is...
  15. veloman

    Trimpots not adjusting voltage on charger

    I have one of those BMS battery style 400watt EMC chargers. It was set to 58v, then I lowered it to the minimum which I found to be 50.7v. Now I am trying to bring it back to 57v, but I am unable to get the voltage output to change. I've tried all 3 trimpots. I can't remember which one is...
  16. veloman

    Hall throttle signal issues

    With gnd and 5v+ hook up to my throttle, I get these readings: 5v = 5.03v that's good signal line with closed throttle 0.9v, up to 4.3v WOT. so far so good. Now, when I connect the signal line to the controller, it is 1.9v. Because of this, I get a fault (and if I didn't the bike would move...
  17. veloman

    Hall throttle not working, but 5k ohm does

    I have this Rmartin EVD scooter controller (6 phase BLDC system) that got with the motor, no scooter. I am almost certain they use a hall throttle, but I've tried at least 6 different brand hall throttles (even the Zapino scooter throttle which matches up - both scooters use the same type...
  18. veloman

    How do you remove threads from "view your posts" page?

    I replied to some threads years ago and I'm getting tired of seeing them at the top of my list everyday. Some of the topics are actually bothersome to constantly see. Is there anyway to remove them from that list? Not to be confused with subscribed threads.
  19. veloman

    CA 2.1 upgrade to high voltage?

    I have an older CA, version 2.1. The manual specs say 15-100v, and 20-200v optional. How do you upgrade it to >100v? I am looking to run it on a 121v fully charged battery, maybe up to 150v. Or am I just better off getting a newer version such as 2.3?
  20. veloman

    When will the Fat bike fad die?

    It seems everyone is converting one to electric. If you ride on snow or sand it makes sense. But otherwise it doesn't make any sense and has a lot of drawbacks.
  21. veloman

    brushed perm132 cutting out?

    The last two rides it has cut out for a split second upon hard acceleration from a stop. Usually at about 10mph. Could this be a worn out brush? I have no problems at much higher power, at higher speeds.
  22. veloman

    Mr Money Mustache (early retirement, frugalism)

    Does anyone read his blog? http://www.mrmoneymustache.com/ I've been frugal since I started working years ago. I dislike overconsumption and waste. I've been reading a lot on his blog the past few months. So much of it is gold. He's a big supporter of bikes as transport and ebikes too.
  23. veloman

    wind generator for heat, no electric

    Following the basic laws of thermodynamics, and efficiency, I think there is potential to design a much cheaper wind power for heat system. My first thought is to have the shaft of the turbine enter into an insulated water tank, where blades are attached and will stir the water. The resulting...
  24. veloman

    Can I run DC current through a toaster oven heat element?

    I have this junk toaster oven (door opens type) that I want to use the heating elements for a heater powered by my 25-45 volt 4 amp solar panel. I want to make a direct connection with just a diode, fuse, and on/off, and maybe a small fan to give it some air flow. Will this work? obviously I...
  25. veloman

    What is causing my Kelly to regen?

    I'm using an older KDHA brushed Kelly controller on my emoto. I have all the settings for regen on OFF. Yet, when the bike is moving and I roll back on the hall throttle, I get regen. This is really annoying, especially at stop signs. The issue is that the controller seems to interpret a...
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