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  1. Maciek

    How to make Zugo Rhino go a little faster...

    ... In any field I was, whenever involved, never was afraid to use components a little larger than minimum required. For instance, the desk top computer I put together needs 700 watts to operate, but I used a 1200 W power supply, so it can run reliably for years without overheating and stressing...
  2. Maciek

    How to make Zugo Rhino go a little faster...

    ...Thank you both for so quick response. :) ... In this case, I'm afraid, that speed and rpm of the motor are limited by the software in the controller. Speed is limited to 24 mph regardless of battery status, fully charged to 52 volts or partially discharged to 42 volts. Also, acceleration is...
  3. Maciek

    How to make Zugo Rhino go a little faster...

    This is basically 2 part question. First would be how to make an existing motor spin a litter faster, second, how to replace an existing, 750 W, Bafang, geared motor to something decent, like QS 205 or similar. Let start at the beginning. Right now, bike accelerate quite fast to speed 24 mph...
  4. Maciek

    250w geared hub for 150mm drop out

    Get yourself 500 watts motor and stop worry. No one is going to notice it,... including yourself. 500 watts is still far less than my coffee grinder, lol, lol
  5. Maciek

    UK gov' consultation to allow higher power ebikes and throttles

    Sorry for you gays, but Europe was always heavy over regulated in any field. Fortunate for me, hear in New York, caps are so busy chasing hard core criminals, and they don't have time to be bather with electric vehicles. I converted fat wheels bike into electric, installing 5kW gearless hub...
  6. Maciek

    Bafang 750W cuts out every 10 seconds

    5 out of 10 don't work, sounds like quality control problem. Send them beck where they came from and cancel payment....
  7. Maciek

    Motor vibration

    Most likely, bad idea to put anything into the tube beside air...
  8. Maciek

    Sabvoton 150 cutting out under load

    Simple test, connect voltmeter to your battery and see if it holds voltage under the load, when you accelerate. After long storage battery might still show voltage but can't deliver current due to increase of internal resistance. Real test of any battery is under the load.
  9. Maciek

    Fine Tuning of 20S BSM

    Recently got the BMS manual from the seller. Product model number CF-20S90A-D. Not much new information in it. Still do not entirely understand procedure of connecting and disconnecting BMS to and from the battery. Here is what they wrote: (1). The row line starts from the fine black...
  10. Maciek

    BMS fisrt connection, cables order question

    Dear friends Need help how to understand instruction which came with BMS from Aliexpress...
  11. Maciek

    Fine Tuning of 20S BSM

    Got the meaning of the magic letters. From left to right: Black, Unmark Pin, Yellow, Ground. Not much but always something. Still looking for programming software. Would like to adjust same parameters like cut of voltage per cell from 4.25 to 4.15 and bring lower limit from 3 to 3.2 volts, to...
  12. Maciek

    Fine Tuning of 20S BSM

    This BSM is still being sold by AliExpress with new internet address: https://www.aliexpress.com/item/33017576894.html?spm=a2g0o.search0304.0.0.5d244cb3sFPhb9&algo_pvid=dc7467d0-0a8c-4538-aed1-9024a907c742&algo_exp_id=dc7467d0-0a8c-4538-aed1-9024a907c742-25 Already I asked them for help with...
  13. Maciek

    Fine Tuning of 20S BSM

    Hallo again, Still trying to find the way to find the software to look into my 20S BMS. I think that 4 pin socket on my board could be UART connection to the outside world. Pins could be input, output, ground and 5V supply. 3 out of 4 of them are labeled by chinese letters. Maybe someone could...
  14. Maciek

    unlocking speed limit on my ebike

    You didn't mention what is your battery voltage. Maybe with just 9 amps of current isn't enough power to move your bike faster? Remember, demand for power increases with the third power of speed, which means increase speed from 25 to 35 km/h requires almost tripling the power. Pure physics...
  15. Maciek

    DIY Spot welder power- limiting factor?

    Had similar problem before. Now I'm using 2 120 volts, 1200W transformers in series, powered from 240 volts and Chinese controller allowing setting 1 - 50 cycles and 0 - 100% of power of each cycle. Voltage on secondary of both transformers is 4.5 V without load. Setting works well on 0.15...
  16. Maciek

    bluetooth BMS?

    Since so many of you had bad experience with controlling BMS by bluetooth I would like to take more conventional approach and use connection to PC, by UART communication box. Question is: Is the 4 pin white socket on the side of the board for this purpose? So far was able to find that one of the...
  17. Maciek

    Fine Tuning of 20S BSM

    Hello everyone, Recently Purchased 20S, 80 Amp BSM from: https://www.banggood.com/20S-20-series-60V-Electric-Vehicle-Protection-Plate-50A-or-60-or-80A-Tricycle-Electric-Friction-Protection-Plate-BMS-for-3_7V-Battery-p-1756342.html?cur_warehouse=CN&ID=514653&rmmds=search Would like to...
  18. Maciek

    QSmotor/SiAecosys/Taizhou CT-22 Programming. 1 of 8

    Just discover another problem with my CT-22 display. Wiring on the smaller connector, "B", is reversed between pins 3 and 4. Pin number 3 is connected to green wire, pin number 4 to black-green wire, just opposite to the diagram. So should I go by placement of the contacts, or by color of the...
  19. Maciek

    Need help : number of pole pairs

    Easy way to find out number of coils in electric motor is to connect classic voltmeter to its power lines and slowly turn wheel by 360 degrees counting numbers of movement of the needle (pointer). Just verified that way my 205 50H V3 QS Motor, has 16 coils. Voltmeter was set to 3V DC...
  20. Maciek

    QSmotor/SiAecosys/Taizhou CT-22 Programming. 1 of 8

    Hello Everyone, Easy way to find out number of coils in electric motor is to connect classic voltmeter to its power lines and slowly turn wheel by 360 degrees counting numbers of movement of the needle (pointer). Just verified that way my 205 50H V3 QS Motor, has 16 coils. Voltmeter was set...
  21. Maciek

    What is the point of a 3T, 4T, 5T winding if torque per amp is the same?

    Hello Everyone, Can someone tell me what 3T, 4T, 5T in QS Motor 205 50H V3 exactly means? Number of turns of copper? Has to be more than that, I think. 30, 40 or 50 turns per coil? Also what would be max rpm of this motor, 4T version, with 72V battery? Manufacturer says 650rpm, AliExpress says...
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