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  1. R

    16S 320A ANT BMS balancing question

    You would need an active balancer to achieve balance overnight. If I recall, the balance limit on an ANT BMS is 200mA, assuming your board was well built.
  2. R

    Spim08hp 3.7v 8ah 200amp cell build

    You're overthinking it - use a hand seamer, and bend the tabs over each other to lock in place. You can even add the balance/power leads this way by crimping them in with the tabs. GLHF.
  3. R

    12fet IRFB3077 Infineon Controller and microcontroller

    Yup. I run a 9 FET Infineon at up to 50 amps - with IRFB4110's which heat up much more quickly than IRFB3077's (RDSon is significantly lower in the ladder) Keep an eye on the controller temperature for the first few runs (touch test should be sufficient), but you should have no issue bumping...
  4. R

    Cycle Analyst v3 - Speedo Pulse Resets MCU

    Mornin folks. I'm having a bizzare issue with my Cycle Analyst, involving the speedometer. Every time a pulse happens (Sp pulled to ground) the MCU resets (rebooting the device). This happens regardless of whether I use a reed sensor and single magnet or splice in the signal from a motor hall...
  5. R

    $14.99 72v Sunwin Controller

    Can't find my photos at the moment... but yes. There should be a marked header almost dead center on the PCB for a fault LED. The 18 FET should have have a tiny one already though. You're sure you have BATT+ hooked up to VCC? (ignition)
  6. R

    Sabvoton SVMC072150 controller review, variable regen *PICS*

    Just a quick FYI here - regarding regen (at least from my experience). Variable Regen, High-Brake, and Low-Brake are each independently functioning systems. Ergo, none of them need to be activated for another to work. Low-Brake - Cuts power to the motor when pulled low (ground) High-Brake -...
  7. R

    XPD: open-source keywin e-bike lab replacement

    It looks like the default PySerial version in pip breaks XPD at the moment (v 3.4). Uninstall PySerial v3.4 and install version 2.5 On Linux: pip2 uninstall --user pyserial pip2 install --user pyserial==2.5 (Not sure how python packages are handled on windows, don't need that kind of...
  8. R

    $14.99 72v Sunwin Controller

    My guess is the 'jerk' you're feeling is overcurrent protection kicking in, and the controller shutting off briefly. In my experience, a blown mostfet isn't too far off if you're tripping it regularly. I believe over-current protection kicks in at 60A, but I'm not certain of this. (I've been...
  9. R

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Ha, yes and no. I built + flashed it without issue... but I haven't been able to run it yet. I figured I'd rewire all the external leads while I was adding the STLink + UART(bluetooth) jumpers. However, I forgot to keep track of the connections as I removed them from the board. Reassembly was...
  10. R

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    These are the photos I took when I first got the controller. It's external branding is "RisunMotors", and appears to be identical to one posted (by you stancecoke?) on the bitbucket site. Branding changes AGAIN on the amazon listing - a company called "HalloMotor"...
  11. R

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    First, thank you all for your work on the firmware and documentation surrounding the KT controllers and their analogues. I've flashed it - but have been unable to test .... because I hadn't taken any good (helpful) photos of the internal wiring/pads before rewiring it. Heh. It's the 18 Fet...
  12. R

    $14.99 72v Sunwin Controller

    If anybody prefers, these are the direct translations of pad function. ##### ENO-24CM-10 Pad Function Descriptions #### XX: The learning port connects the motor wires, power cables and function wires, and connects the learning wires. When the power is turned on (the door lock), the motor...
  13. R

    $14.99 72v Sunwin Controller

    Sup y'all! Been lurking here all summer - feeding my new ebike obsession - and I've gathered a TON of info from everyone here. I figured it's about time to give back. There's a lot more where this came from, and I will be consolidating all the documents I have over the next week in a git repo...
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