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The QiCycle Folding Electric Bike is Xiaomi’s first foray into the world of e-bikes. It has a 250W high-speed motor powered by Panasonic 18650 lithium batteries. The Shimano Nexus 3-speed gear hub in combination with the torque measurement sensor gives you up to 45km bike power on a single charge. It also has a trip computer can connect to your smartphones via their special app and is–of course–foldable.

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Watt-meter display jumps and motor stops

Hi Guys,

The past 2-3 weeks I’m experiencing a problem with the electric bike.

The meter of Watts in the display has a lots of variation and while it might be at one moment 140 Watts, it can change to 200 Watts after a second without any reason (cycling with steady pace).

This results in stopping the motor even if I am under the limit of 25km/hr (kind of blocking it so it doesn’t give boost) as it is probably limited to going to a certain amount of max Watts.

The solution for the motor to keep giving boost is to stop the bike and start again from 0 Watts.

Any ideas on this/have you encountered something like this before? I’m trying to figure out what might cause the problem. It all started after I fell once with the bike.

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hello i think i have the same pb, but switching off/on the bike don't solve the pb at any time, it's random...

I didn't fall with my bike, but i have cycled under rain, and in mud.

I think it's the speed sensor, but not sure

Xiaomi MiJia QiCycle Folding Electric Bike Teardown

Did you find an issue ?

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PCラップトップ用バッテリー

An easy fix for a big power boost.

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PCラップトップ用バッテリー

An easy fix for a big power boost.

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Yo también tengo un problema parecido.

A veces no entra la asistencia eléctrica o lo hace de una manera “a saltos”. El indicador de speed da valores irreales.

Si aprieto el cable que llega al display en el manillar el problema se arregla temporalmente.

Creo que tendré que desmontar y revisar alguna soldadura o similar.

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bill depo さん、ありがとうございました!
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