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  1. J

    Can a controller be to big? (Modified Bionx motor)

    Ok. progress...maybe I have it running without stopping. I think it had a poor field connection. It is kinda of noisy and draws 12 amps if C5 is set to 3 and 14 amps if C5 is set top 10. so what's my next move ? run thru the combos again? Txs
  2. J

    Can a controller be to big? (Modified Bionx motor)

    Unfortunately C2 can only toggle between 0 and 1. No other settings. Doesn't seem to make any difference if set to 1 or 0. Txs
  3. J

    Can a controller be to big? (Modified Bionx motor)

    Yes. the Grin video is what inspired me. i just didn't want to buy a $500 controller.
  4. J

    Can a controller be to big? (Modified Bionx motor)

    Thanks. I'm close to giving up. see this thread https://endless-sphere.com/sphere/threads/the-weirdest-controller-motor-issue-and-nothing-helps.113529/?fbclid=IwAR3umTbhJ5PXVVD4V6jL_6W9t77Ek1yz2XCl-fnjoOtKQAKmBuwLx0yA7_E I think its an issue with KT type controllers and my direct drive hub...
  5. J

    Can a controller be to big? (Modified Bionx motor)

    Here is something else that is interesting; In the diagram above, the start diagram produces a a smooth rotation but does not go very fast and it is in the wrong direction. I changed the wires in the hall and phase as indicated on the diagram expecting it to change the direction of rotation...
  6. J

    Can a controller be to big? (Modified Bionx motor)

    I don't think the battery is sagging. BTW where should i be measuring current? at the battery or at one of the stator wires? txs
  7. J

    Can a controller be to big? (Modified Bionx motor)

    Update: At the super fast setting, the motor only runs for about 3-4 seconds and then stops. This may be the correct setting, but it will only run for 3-4 seconds.
  8. J

    Can a controller be to big? (Modified Bionx motor)

    The motor is not laced to a wheel at the moment. I am bench testing things, so it is unloaded. I would say the battery can peak at 20 but run at 15 amps. When in super fast mode it draws 22 amps.
  9. J

    Can a controller be to big? (Modified Bionx motor)

    That's the problem. I have tried all the combinations (36 in total) (several times) I either get super fast, or super slow or it just clunks or sometimes a clunck with a bit of rotation. I changed C5 to 3 but it did not seem to have any effect. What would be a more suitable controller. I have...
  10. J

    Can a controller be to big? (Modified Bionx motor)

    Hi Folks. I hope someone can sort me out. I took a 350w Bionx motor and removed the internal controller. It is now just a plain direct drive motor 3 stator wires and the 3 hall leads plus power and ground. I ordered a KT controller from aliexpress. Thinking bigger is better I ordered the 50a...
  11. J

    buying a SUNKKO spot welder 120vs220

    Yes exactly I have access to both 120 or 240 at 60Hz. Which model should I order? given the unit is spec'd at 50hz. Does it matter? txs
  12. J

    buying a SUNKKO spot welder 120vs220

    Hi I am thinking of getting this spot welder. Should i get the 120v version or the 220v version. i live in canada and the 220 is at 60Hz. I think if i get the 220v version it is specedat 50 hz. Not sure if this is a problem I heard 220v is better, but i am worried about the frquency as it...
  13. J

    battery charger repair

    Maybe i'm wasting my time here but.... My 48v charger blew up. My compressor started up while I was charging and the charger smoked. Here is a pic of the damage. The replacement pieces are easy to source. Problem is I'm working without a schematic and I can't identify the resistor values. Here...
  14. J

    best way to supplement with human power?

    Thanks everyone! That was a ton of very useful information. Much appreciated. What a great forum!!!! Regards
  15. J

    best way to supplement with human power?

    Would you have a link of a supplier for the half twist throttle you reference. Sounds like something I could use. Txs
  16. J

    best way to supplement with human power?

    Hi Folks I have just build a new bike using a HS3540 and a 40 amp controller. It has a thumb throttle a CA and it works fine. Previous to this build I had a Bionx system. I really like they way it added power based on how hard I pushed the pedal. I could easily controller power and make a...
  17. J

    problems with my charger- Mega infinity

    Hi Maybe someone has some ideas on what is wrong with my charger. It worked fine last time i used it in the fall. It is a Megapower Infinity 930sr Anyway I am simply charging 2 lion cells 1s2p. I turn the charger on and the voltage just rises and then gives me a Output Voltage too High error...
  18. J

    microwave died, any parts i could use?

    Thanks for the link... I'm going to build one :mrgreen:
  19. J

    microwave died, any parts i could use?

    Please tell us how! any reference links?
  20. J

    Battery placement recommendation please

    Have a look at my new e-bike frame. It has a great suspension fork. (FOX) I would like to carry 48v 20ah battery or batteries. I am not sure of placement. I really don't like seat post, as all the weight is in the rear. The triangle is small. Maybe saddle? But i don't want the front wheel to...
  21. J

    suitable load to discharge 36v Li-ion

    Hmmm. letting any cell go down to 2.1v will likely kill it.
  22. J

    suitable load to discharge 36v Li-ion

    I don't have a hotplate...
  23. J

    suitable load to discharge 36v Li-ion

    what voltage should the halogens that i hook up in series be?
  24. J

    Bionx err 22 and battery connector pin assignment

    Error Codes 20 SMC_ERROR_VCTRL No battery voltage 21 SMC_ERROR_VPRCH Precharge at switch-on 22 SMC_ERROR_RELAY Relay bad 23 SMC_ERROR_BMS Battery Management System 25 SMC_ERROR_LOWBATT Battery too empty 26 SMC_ERROR_NOTPRESENT No communication with battery 27 SMC_ERROR_RTC RealTimeClock bad 28...
  25. J

    Bionx err 22 and battery connector pin assignment

    The battery is made up from a 6p10s. Individual cell voltage ranges from 3.0 to 4.2 So the range is between 30 and 42 volts. I would probably not let it fall below 33volts Does you battery stay at around 40.5 volts or does it continue to drop without load? .
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