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  1. J

    Suppliers that sit on your orders

    It must be 30 years ago we first heard the term "Cash Flow Scam" It started on TV and then rapidly spread as the internet evolved. Find a supply of a popular item and with an LC (letter of credit) get a locked in price for a large quantity. Get the cash up front, sell the item for your cost...
  2. J

    BMSBattery/ECityPower Experience

    Without a BMS, how will you monitor and balance that battery? Can you get at each cell?
  3. J

    e-Buggy: Alternator Conversion

    8A is .5HP and will push a bike very nicely on the flat. I find the work you fellows are doing on the altermotor very exciting. It may not be 99% efficient, but it is one hell of a bang for the buck. If you can design an inexpensive controller that will reduce the field V as the rpm of the...
  4. J

    Ping BMS: One LED never comes on while charging (SOLVED)

    Not having looked at the BMS circuit, I made the incorrect assumption that the 70mA was shunted to ground. WRONG, the current is shunted across the cell to the next, to the next etc. NOW I get it, but I have a real stupid question? Why don't we parallel charge with a 3.9V (or other precisely...
  5. J

    Ping BMS: One LED never comes on while charging (SOLVED)

    Is this 70mA per cell or total current? I have found 3 cells .3V low so I am balancing the pack right now. Thanks; John
  6. J

    220-250VAC outlet wiring (OT-ish)

  7. J

    e-Buggy: Alternator Conversion

    The stator I showed is junk and has been replaced. My camera batteries went dead so I did not get a picture of the repaired alternator, which was sitting beside it. I am just checking around for an inexpensive source of large alternators for other fellows. After I complete my current project...
  8. J

    e-Buggy: Alternator Conversion

    Widodo; I took my camera this morning, but only got one shot before the batteries were flat. Spare set of batteries were for wife's camera and did not fit. Overall length is 46cm. Weight @ 55KGs. Sorry for the imperial tape. Could not find metric tape this morning.
  9. J

    Cyclone 500w + LiPo+SLA ?

    If a relay is used to connect the controller, it will only require a tiny bit of power when on. When off, no drain will happen.
  10. J

    e-Buggy: Alternator Conversion

    I wrap a rag around the fan and clamp the rag with vise grips. Then use an air impact wrench to rattle the nut off. Put a few drops of penetrating oil on the night before? NOT WD-40, real penetrating oil. 50-50 mix of Acetone and Automatic transmission fluid works better than most expensive...
  11. J

    e-Buggy: Alternator Conversion

    Isn't that 200A controller limited to 22V? http://tinyurl.com/2ds5ncd http://cgi.ebay.com/200A-Brushless-Motor-Speed-Controller-RC-Accessory-ESC-/150428455513?cmd=ViewItem&pt=Radio_Control_Parts_Accessories&hash=item23063c1259
  12. J

    e-Buggy: Alternator Conversion

    That noise from your video is sooo familiar. I think you need a washer behind the fan to keep it from hitting the case?
  13. J

    e-Buggy: Alternator Conversion

    You are 100% correct. I am a newbee and as I live on a steep hill, I was interested in the max torque of a Star to get me home on my first build. I was hoping to not have to change to 20" wheels from 26" if I could figure out how to get the torque and gearing correct for my application. If...
  14. J

    Manufacturers and dealers to avoid

  15. J

    e-Buggy: Alternator Conversion

    IIRC Star (WYE) 1.6 X torque of Delta? Edit; I found many references by searching "delta, star, torque" Here is one; "To get a suitable gear ratio, I think you would have to either do a two stage (complicated and less efficient), get an even smaller sprocket (getting hard to find), lower...
  16. J

    Ping BMS: One LED never comes on while charging (SOLVED)

    Pete; It would be great if My. Ping included Bob Marley's "Don't worry, be happy" or wait a few cycles before you worry about the leetle lites. :D On my 3rd or 4th charge, I found 2 flashing red lights :shock: when I went out in the morning. I had already learned to not suspect the worst, so...
  17. J

    Ping BMS: One LED never comes on while charging (SOLVED)

    Sorry for the bad choice of words. The note was to "myself" and I was not suggesting the post was without merit. It is just one I don't need to file for reference. The thought I was trying to convey is to relax and enjoy, not to worry too much on a new battery. I'm happy not to have a BMS...
  18. J

    Manufacturers and dealers to avoid

    "My Paypal Account is in USD and my Bank Account is in USD but according to Paypal there was a Policy change and Revenue Canada are the ones to blame here. Seems American money being transferred across the Border has to enter as Canadian currency." This is a totally false statement. Revenue...
  19. J

    Ping BMS: One LED never comes on while charging (SOLVED)

    I was trying to summarize this thread for my notes. I see the various points made of faulty charger, faulty BMS, low cell, lazy cell, bad cell. In the end, the solution appears to be to do nothing. There was no fault. (Note to self, forget this post) After the first use of my 20 LiFePO's (no...
  20. J

    SMACK!! CRUNCH

    Sorry the trike got wrecked but happy it was tin instead of skin. 3 lanes, 2 going across and one to turn right. My daughter blocked the center lane, with cars on her left and right. Second vehicle back in the lane on her left was an articulating bus. When she got across the intersection, the...
  21. J

    e-Buggy: Alternator Conversion

    We used automotive alternators for years to put out 117V to run small power tools. They will produce 1Kw but they will get hot in continuous use. With additional cooling, who knows what they will live with? I'm in Vancouver for a few days next week and will look around the e-bike shops for...
  22. J

    e-Buggy: Alternator Conversion

    I like your skeleton "costume" on the tadpole. Or is it a custom without a costume? :lol: :lol: :mrgreen: You will find the large alternators on old cop cars, trucks, buses or marine. Even look at Princess Auto for aircraft surplus. I guess you know there are several around Vancouver?
  23. J

    e-Buggy: Alternator Conversion

    "Small in power, not in gabarites." Does "gabarites" mean physical size? A large alternator for low power? Thanks :D
  24. J

    Epic Fail!

    Hopefully anyone attempting to mount a hubmotor can figure out how to grind off the 45* cone :roll:
  25. J

    Epic Fail!

    mr.electric; My local auto wrecker has a "help your self" drum of them.
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