Recent content by harmonist

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    Wiring voltage display to sabvoton

    Blue cable did the trick, all working well now, cheers
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    Wiring voltage display to sabvoton

    Hi all, I'm running a sabvoton 72150, I used to have a TFT screen but blew that so have been running it headless for a few years now. I recently picked up one of these LCD voltage displays and I'm keen to wire it in, I can wire directly to the battery but then it would be always on, I tried...
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    Weird issue with Sabvoton 72150 or something else?

    Yes we have system voltage, its between LVC and HVC. It shows throttle voltage however the throttle voltage doesn't change as I turn the throttle even though the wheel is spinning correctly, maybe I have an issue there? I might redo the throttle wires and see if that helps. Thanks for the help!
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    Weird issue with Sabvoton 72150 or something else?

    I have an issue where my bike completely dies, the controller will light up and show no errors in the app however there will be zero power when turning the throttle, this has happened twice now, the first time it magically started working again the next day with no issues, fast forward a few...
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    Sabvoton SVMC72150 TROUBLESHOOTING

    Hey did you ever resolve this? my 750c also died a while back so I just bypassed the display and use the bike without one, however it would be good to know the voltage while I'm riding again, was also thinking about getting the UKC1 to replace it.
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    bad charger or bad bms?

    Hi all, I've had this 72v battery for a couple of years now and it goes great https://em3ev.com/shop/em3ev-72v-20s10p-rectangle-battery-pack-24-5ah-29-5ah/ However about a year ago it stopped balance charging and just continues past the 84v fully charged point. I've tested the charger with a...
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    Your Creation's Before & After Pics

    Before upgrade After upgrade
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    Show me your front light(s)

    Bought this one because it plugs straight into my 72v battery, does the job nicely https://lunacycle.com/fisher-fab-house-led-e-bike-light/
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    Tire help for 17" and 19" moped rims

    I've emailed em3ev asking them to change my order to the 17" 1.60 rims, that seems to be the way to go for street by the looks of it, having lighter wheels is a bonus plus my workmate races motorbikes and reckons he has piles of 17" tires I can have for free, all round win! :thumb:
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    Tire help for 17" and 19" moped rims

    Hi all, Sorry if this has all been covered, I've done a bunch of research and am still scratching my head a little, the thread (19" Motorcycle Wheels vs 26" Bicycle Wheels) has some good info in it but I wonder if much has changed in the last few years. So I've put in an order for the QS205 in...
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    What are some good 3000W hub motors for 26 inch rims?

    I was using the edge 1500w on a mountain bike which did the job nicely, closer to 50mph top speed with a 72v battery (with ferro fluid and hubsinks), the 12fet controller didn't last long so went 18fet, I'm still using the edge motor and controller 2000 miles later but on an EEB frame now.
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    "Edge" DD hubmotor, 1500W, 35mm, Al core

    Excellent thanks for the info, will whip one off tonight and get some measurements. Cheers
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    "Edge" DD hubmotor, 1500W, 35mm, Al core

    Just wondering if anyone can help out with some spoke specs for this hub, I bought it already made up in a MTX33 rim, I've just noticed that I've broken a spoke so better order some new ones, I think the current spokes might be sapim 13G/14G, is 13G the spoke and 14G the nipple? anyone have some...
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    Building an EEB with a QS 205... Help needed

    I purchased an EEB frame from EM3EV and have been commuting 5 days a week on it for around 8 months now, its awesome and hasn't failed me yet. I would have preferred the futr alpha frame but its a bit too expensive, although if I was building again I'd probably suck it up and buy the alpha. I'm...
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    "Edge" DD hubmotor, 1500W, 35mm, Al core

    I ended up frying the phase wires on my edge motor pushing about 95amps for some long runs, got some good speed 50mph+, have never had the front wheel want to come off the ground like other people mention but maybe thats because its in a 26" rim, I put some new wiring on and installed hubsinks...
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