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  1. romandesign

    Wiring brake/tail light - any time I close a circuit the horn sounds! Please help with the troubleshooting...

    Yes, when connected as is, everything works fine, horn/headlamp switch turns things on etc. I'm thinking about maybe tapping the battery directly somehow, instead of Y wires. It's all neatly connected inside the frame, but maybe I can find a place to tap near the controller or where the...
  2. romandesign

    Wiring brake/tail light - any time I close a circuit the horn sounds! Please help with the troubleshooting...

    I got a new Wheelspeed Taurus ebike that doesn't come with a tail light. It has an S830 display. I ordered some colour Y-cables to tap into the cables without cutting anything, and a 48V tail light with running light, brake light and turn signals. I found a couple of combinations of ground and...
  3. romandesign

    Current limiter setting question - is it set too low on an off-the-shelf ebike?

    Makes sense. I think I'll leave the limiter at 12A. I only tested it once on the street, I'm sick now so can't continue testing, because it's cold outside. But the acceleration felt quite nice, not sluggish at all, and with the speed limit removed, I chickened out at 35-37 km/h - it was just too...
  4. romandesign

    Current limiter setting question - is it set too low on an off-the-shelf ebike?

    I can see voltage and current (amps). Not wattage.
  5. romandesign

    Current limiter setting question - is it set too low on an off-the-shelf ebike?

    Update: I have a suspicion that I found out why, thanks to this forum. Though my battery has a maximum discharge rating of 25A, it doesn't list the continuous discharge rating, and that may be the limiting factor. I googled and it seems that most similar batteries have a continuous discharge...
  6. romandesign

    Can you identify this motor?

    Ah, that may be the limiting factor. I googled and it seems that most similar batteries have a continuous discharge current that is roughly half of the peak discharge current. So for my 25A max battery it would be ~12.5A, which would make my battery the limiting factor. That also matches the 12A...
  7. romandesign

    Can you identify this motor?

    Fantastic, thanks! That should translate to speeds of ~26 to ~39 km/h, which is good to know! No, just the multimeter. Also, the connectors are heat-shrink-wrapped so I don't want to disconnect them. All I know is what the label says, but I think 25A max current should deliver >16A constant...
  8. romandesign

    Current limiter setting question - is it set too low on an off-the-shelf ebike?

    Hi, I just bought my first ebike: Whelspeed Taurus, an inexpensive Chinese fat bike with a 500W rear hub motor, 14.5Ah battery and S830 display. Of course, I found the unlock code and removed the speed limiter. But going through the settings, I discovered that the factory Current Limiter...
  9. romandesign

    Can you identify this motor?

    Hmm, now that's interesting! I opened the controller cover and looked at my controller model. So if I understand it correctly: 1. my motor can draw 24.5A on max power, and it's 21.31A t max torque. 2. My Controller is rated for 18A 3. But my S830 current limiter is set for 12A!!! That raises...
  10. romandesign

    Can you identify this motor?

    OK, that's a start. What conclusions could I make from this? When suspended in the air the display shows around 0.8A to 1A draw at full power. Speed limiter is disabled, speed shows 49km/h, full battery charge. By hearing the variations in sound I estimate RPMs to be about 360 (I can hear ~6...
  11. romandesign

    Can you identify this motor?

    Hmm, thanks, it matches closer than BAFANG. The 3 pics on their product page do not match each other, but 2 of them are an exact match. This one is almost an exact match, though I don't have branding on the rectangular depression, the shape matches and the screw color etc. (the end nuts don't...
  12. romandesign

    Can you identify this motor?

    My new inexpensive fat tire ebike came with this motor. I'm curious what it is. It's either a brand I don't know or a white-label drive from a known brand. I couldn't locate that logo and there is no other branding on it. The other side has a long oval depression with an arrow inside it, but no...
  13. romandesign

    Wiring tail light with blinkers to a 1T4 cable - need help figuring out the wiring.

    Thanks a lot for the detailed reply. I managed to find thin enough wires to get the multimeter connected to the cables. The results are encouraging but a bit surprising. First, the cables provide +48 current to the rather powerful headlight with 4 high-power LEDs, so I think they should handle...
  14. romandesign

    Wiring tail light with blinkers to a 1T4 cable - need help figuring out the wiring.

    Got myself a first ebike - an inexpensive 48V 26"x4" fat ebike with S830 display. It doesn't have a tail light. I want to add a working tail light with brake light and blinkers, as inexpensively as possible, and without voiding the warranty (means no cutting and splicing). But I'm puzzled by the...
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