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  1. P

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

    Ok I will see what I can do, starting with the .apk
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    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Awesome work!! Hey, is there any way the BluOSec app can be switched to a landscape layout rather than portrait? Thanks for everything
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    Custom Bosch / Yamaha battery

    Im not sure what the controller cuts out at, or if it even does. If youre concerned about it I'd say just add a second bms and just wire it for discharge protection, or get another charger
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    Custom Bosch / Yamaha battery

    Yea.. while upgrading the haibike I've basically found that it was a domino effect of replacing every single thing that is yamaha on the entire bike. The better route would be to leave it stock, tune it, polish it, charge it, sell it. And instead build an ebike by installing components or a kit...
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    BMS charging and outside the norm wiring ideas

    Hello peeps, I have a few questions regarding how bms's work and if these wiring scenarios care possible, and I hope someone is able to answer.. I have 2x small cheap 10S bms's and I was hoping to daisy chain them together and use on one of my 14s packs. I was thinking of running them both as...
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    Running 2 or more BMS in series

    I'm not sure I fully get how you wire these? Just balance leads only but where would I connect the BO or negatives? Pair them up and connect to my main - wire, or splice in somewhere else? Thanks Also I'm already bypassing the discharge on my bms's, what would be any drawbacks to bypassing the...
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    Yamaha Pw custom controller + battery

    I've done it, seems to work pretty well on the Haibike sduro. Once I removed the controller I had to bypass the discharge port on the bms for it to run. The wiring configuration for the 1500W KT controller is to swap the Y and G phases, and with the Grinfineon 35A controller, either swap the G...
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    Anyone know the wiring of a Yamaha pw series motor?

    Nobody? :(
  9. P

    Custom Bosch / Yamaha battery

    (the cells will still get balanced when charging, and still be protected from low voltage damage from the controllers operating range)
  10. P

    Custom Bosch / Yamaha battery

    If you bypass the discharge on your Yamaha battery pcb (cut the thick red/black wires going to the board from the discharge port, and solder them to the main leads of the pack, which are oval shaped solder pads on each end, the one closest to the port is positive) if you do this you won't be...
  11. P

    Yamaha Pw custom controller + battery

    Considering a ca3 to process and configured the torque sensor if possible
  12. P

    Yamaha Pw custom controller + battery

    Any luck with this? I'm doing the exact same thing
  13. P

    Anyone know the wiring of a Yamaha pw series motor?

    I have the Yamaha motor bypassing the internal controller and out to my external one, everything seems fine except I don't have pas. Was looking into different add-ons available, and when I look into torque sensors the price can be pretty high. This motor already has one but I can't figure out...
  14. P

    Need help first build with kt-lcd3

    If the growling you speak of feels like your whole frame is rumbling and buzzing each time you open the throttle in my experience its been an issue with the blades of the anderson phase plugs not maintaining a locked connection but instead having the blades touch but rattle on top of each other...
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    Bluetooth BMS wiring and features

    Static balancing balances while your battery is idle. Shifting voltages from one cell to another. In this mode my first cell temporarily goes lower than the rest but normal when completed or when I turn the balancing off (I just set my balance start voltage high to turn it on/off) I'm assuming...
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    Bluetooth BMS wiring and features

    I did some research and learned that open circuit balance means it balances to the cells open circuit voltage (no load) values. and closed circuit would be to balance to the cell voltage readings under load/throttle, like after the voltage drop. Thanks I'll check out that PC app. I'm hoping with...
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    Bluetooth BMS wiring and features

    Here is the bms pcb:https://goo.gl/images/7rywT1 Here are the editable parameters within the app: https://goo.gl/images/XTt84q
  18. P

    Strange behavior during charging

    I'm assuming maybe the bmsneedsto pullvoltagefrom cell#1 during the balancing process, I'm hoping..
  19. P

    Bluetooth BMS wiring and features

    There are some features of this unit that I'm a bit unfamiliar with, hopefully someone can chime in and shed some light..mainly, Open balance - open or closed (does this mean whether or not I'm balancing while discharging the battery?) Static or charge balance - I'm assuming balancing while...
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    Strange behavior during charging

    Hello fellow ebike enthusiasts, A question .. hopefully someone has an idea what is happening? When I'm bulk charging my pack, (lifepo4 15s prismatic) the first cell in series dips to 0V red, and back to 3.2X, then back and forth, while flashing that it is balancing I think as well. (I'm...
  21. P

    Grinfineon 20A current limit?

    Interesting thread. After reading this I've added a light coat of solder to my grin 25a shunt. My question is, how would I determine my new shunt value to configure my CA with for accurate readings? Thanks
  22. P

    SLCD-3 display settings, P and C parameters

    If you just press the button twice it will display the voltage. Anyone know if the time of day can be set/shown with it?
  23. P

    SLCD-3 display settings, P and C parameters

    *bump* Nobody?
  24. P

    SLCD-3 display settings, P and C parameters

    Hello, and thanks for this informative information. One thing I was curious about, was the settings for 'real-time voltage monitoring' etc.. I was wondering how I can setup my display's battery meter, to show 0% at 40V, and be relative in between. Because as of now, it just shows full up until...
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    LifePo4 voltagedrop, is this normal?

    was thinking one from this site, such as this one.. http://www.lifepo4.in/app%20ebike%20battery/48v%2020ah%20lifepo4%20app%20Electric%20bicycle%20ebike%20battery.html with 2000W BMS
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