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  1. E

    Should I replace a bent cell?

    I dropped my battery like an idiot, and one of the cells got bent. Is this dangerous? Should I replace the cell?
  2. E

    EFEST brand name cells

    Turns out Efest also sell brand name cells. I want to buy Samsung 40T from them but I am afraid that the cells will be fake. Anyone has any experience buying brand name cells from them? Thanks!
  3. E

    fake molicel cells? QR code question

    Hi, I got some molicel p42a cells, and noticed that the QR code does not match the writing on the cell. I scanned the QR code on images of cells from google and they do match the writing on the cell. Does this mean the cells I got are not genuine? Thanks!
  4. E

    Disable the need for a speed sensor in a BBSHD?

    Is it possible to disable the need for a speed sensor in a Bafang BBSHD? I am getting this speed sensor error, and the motor just shuts off. Thanks!
  5. E

    Isolation between cells needed?

    I just built my first pack, 16Ah, 72V nominal. I glued the cells together with hot glue before welding and incased with heat shrink. After the build I saw some videos saying that it is important to add isolation between the cell groups. Is this an important safety issue? Should I be warried...
  6. E

    Alibaba vendors for genuine Li-ion cells

    Hi, Anyone has experience with alibaba stores, purchasing Li-ion cells? are the stores trustworthy with genuine cells? Any recommendations for a specific store?
  7. E

    Over-speed in trapezoidal controllers

    Hi, a question regarding Field Weakening - To my understanding, FW can only be used with FOC or sinusoidal controller. However, cheap Chinese trapezoidal controller have an option of over-speeding (for example low cost stock controller of the cyclone has this option which drives the motor crazy...
  8. E

    New motor makes rattling noises

    Its a Cyclone 4000, and it has a metal gear. Is this noise normal? sounds like theres something loose inside. https://www.youtube.com/watch?v=G7YQqnhYUZs
  9. E

    Cyclone 3000 controller options

    I think it would be great if we use this thread to gather information regarding Cyclone 3000 controller options, since it seems to not work with some controllers (such as Phaserunner) Here are my two cents: 1 - Stock controller works, but no current control loop, and no field weakening. I have...
  10. E

    3D priniting of BBSHD cover

    Can anyone share a BBSHD cover plate drawings or files for 3D printing? I mean the casing of the controller. Thanks!
  11. E

    Cycle Analyst current limit issue

    Hi, I use CA with pass thru throttle. 1 - The current will not go over 40Amps even though the limit is set much higher. 2 - When I connect the throttle directly to the controller, bypassing the CA I can get up to 80 Amps. 3 - If I decrease the current limit below 40 amps, the limit will work as...
  12. E

    Cyclone 3000 clicking noises

    I dont know how to pull the rotor out of the stator. Took the top plate off, and loosen the bottom, but the magnets in the rotor are to strong to just pull out. Any Idea what could be making this noise? https://youtu.be/JqzMC7cEmiM
  13. E

    My Cyclone 3000 direct drive build

    Motor mount was made from 6mm/3mm aluminium cut with CNC. The motor chainring was increased to 26T to reduce chain stress. With the narrow wide chainring the chain doesnt fall even on rough terrain. The motor is coupled with a Phase runner (which was hell to set up) and pulls about 45A with a...
  14. E

    Mid drive heat dissipation - water cooling?

    Hi, I run a BBSHD with an external controller. I used to run it at 3KW, but recently found out that 60 amps at 84V is loads of fun! The only problem is that the motor gets really hot. I have attached a few heat sinks on the bottom of the motor, but it still gets hot. Thought about attaching a...
  15. E

    Cyclone 3000 un-smooth throttle response

    Cyclone 3000 throttle response with stock controller is very un-smooth. Not suitable for off road, the bike can throw you off of it if you'll ride while standing. Is there a solution? Another controller maybe? Tried Phase runner, but it can't read the encoder, and not sure if will improve the...
  16. E

    Cyclone 3000 waterproof connector issues

    I got a Cyclone3000 with the waterproof connectors, seen in the image. The problem is I want to use a different controller than the stock one, so I need make a new cable that can connect to the motor. does anyone know the name of this connector? Or the pinout (encoder signals, supply etc...)...
  17. E

    Setting maximum current - battery vs phase

    Hi, I have a Phase Runner, And to my understanding it can handle 40A continuous phase current. However, I need to limit the battery current (also), so, how can I know what is the maximum battery current that's safe for this controller? BTW, I use it with a BBSHD. Thanks!
  18. E

    Is the radiation of an electric bike hazardous?

    This has started concerning me recently, anyone here checked it out? (I ride a 84V/35A ebike)
  19. E

    Cycle Analyst shows inaccurate battery voltage reading

    I have a 20 cell battery (74 nominal). When fully charged the voltage is 84V as measured with a DVM (Digital voltmeter), however, the cycle analyst indicated 85V. This is also the case at lower voltages. Is there a way to correct this? Iv seen no voltage calibrating method in the CA manual...
  20. E

    How accurate is the Cycle Analyst/phaserunner Ah calculation

    I just bought a new 17.5Ah battery. After a few short rides took it on a longer ride for the first time, and the battery was done after only 12.5 Ah... So, Is the CA accurate? Thanks!
  21. E

    What are the drawbacks of increasing voltage?

    OK, so I know that higher voltage means lower current and less gear shifts. But before I switch from 48V to 60V I'd like to know what are the drawbacks - will it affect the throttle response? maybe less accurate? not as smooth? Any other drawbacks? Thanks!
  22. E

    How much power is too much for a standard mtb?

    Hi, Im thinking of upgrading to a 3KW mid drive system. Im afraid it will be too much for my bike - I have a standard enduro rear wheel with 32, 2mm DT spokes and an wtb i29 asym rim and a standard 11 speed chain and cassette. How much is too much for this setup? Will it take 3KW?
  23. E

    BBSHD creaking noises under load

    Hi, After about 700 Km, my BBSHD started making these creaking noises, which got worst over time. This happens only while accelerating or climbing when the motor is under load. In this video I use the brakes while spinning the wheel so you can hear the noise...
  24. E

    Cyclone hall effect connector pinout

    Hi,I want to pair a (mini) Cyclone with a phase runner controller. The mini cyclone has a 7 pin hall effect connector, and the phase runner uses a 5 pin connector. I need the cyclone hall connector pinout, so I can make the adjustments. Can someone help? I am pretty sure the Cyclone 3000 and...
  25. E

    Cyclone mini - very un-smooth throttle response.

    Hi, I just finished installing a cyclone mini and took it to a test-ride. all stock parts from Luna. Two problems encountered immediately makes it unlikely that I could use this motor - 1 - The throttle response is very poor. Very un-smooth. It felt like the motor sometimes suddenly kicks very...
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