Scooters and Grades

furyou on 22/10/2021 - 21:32

Reading about eschooters. It seems most have 300w motors, or some have 2x250w.
This doesn't say anything about the power right? It could be a crap inefficient motor.

They talk about hill grades like 10% or 20%. But what does this mean in real life? As a sub 100kg person, what kind of hills would I be able to climb? The point is to climb hills, I don't need e for downhill or flat.

Are we talking gentle slopes or ones that actually raise your heart rate if you walked up? On a push scooter I can go up very gentle slopes.

Sports & Outdoors Electric Scooter

Comments

  • Hybroid on 22/10/2021 - 21:41

    E-Scooters are not legal for public use in Sydney. Don't get one for street use or risk $2,500 in fines & demerit points.

    https://www.reddit.com/r/sydney/comments/qbvrvj/27k_of_fines…

  • Ozbfan on 22/10/2021 - 21:44
    +2

    “Reading about eschooters. It seems most have 300w motors, or some have 2x250w.
    This doesn't say anything about the power right?”

    It tells you that the power is 300w….

    • furyou on 22/10/2021 - 22:42
      -2

      that's energy consumption, not power output.

      • mskeggs on 22/10/2021 - 22:58
        +2

        The consumption is almost equivalent to output, where else would the power go? A little bit of heat, noise.

        • trongy on 23/10/2021 - 09:00
          +1

          The motor controllers for e-bikes and e-scooters seem to be pulse width modulation power supplies. Looking at pictures on google they have heat sinks, but not massive heat sinks and not fan forced. Based on that I would guess they are > 95% efficient.

      • pegaxs on 23/10/2021 - 07:58

        Does this help?

        It’s 0.3kW, or 0.4hp…

        What you really need to find out is the torque these motors put out. Torque is the ability to turn the wheel. Watts is a measure of how much work the motor can do over a time frame. Torque is the actual measurement of the motors ability to turn the wheel under a load.

  • phbk on 22/10/2021 - 21:57

    My Bolzzen has 2 x 1000w motors … Legal in Queensland

    • Peter Enis on 22/10/2021 - 22:04

      So yours is capped at 25km/hr is it? QLD requirement.

      • phbk on 22/10/2021 - 22:22
        +1

        Of course, it's the law, and a stupid law it is. You can do 25km/hr on a footpath full of people but you can't ride it in a bike lane.

        • Peter Enis on 22/10/2021 - 22:34

          Only asking because I get overtaken by multiple escooters every single day on qld bike paths, these guys are fully kitted out in full motorcycle protective gear and travelling 35km/hr+ (estimated)

  • pjetson on 22/10/2021 - 22:45
    +1

    They talk about hill grades like 10% or 20%. But what does this mean in real life?

    A 10% grade means a rise (or fall) of 1 metre vertically over a distance of 10m horizontally, which is a little bit less than 6 degrees.

    A 20% grade is a 2 metre rise over 10 metres, or a bit more than 11 degrees.

    You can get phone apps that tell you the angle (and sometimes the grade) that your phone is being held at, so you could hold your phone on the same angle as a hill and find your answer.

    Of course it's all a bit academic since you can't legally ride those scooters in Sydney.

  • Ryanek on 23/10/2021 - 21:50

    A guy from Sydney just got fined 2K+ for riding a powered scooter earlier this week.

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