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Hi, I bought a conversion kit on alibaba(motor + controller) My friend's electric motor was broken and he didnt want to repair it. So I got my battery from him. I toke off his controller and solded mine to the battery case. Once I had put the battery in its case, I smelled something burned and...

Hi, My goal is to try to build my own electric bike from an old womansbike. I bought an electric motor with controller and managed to make it work. Although I started with lead acid batteries, I was happy to achieve this. My collegue had an electric bike but his middle motor was broken and...

Hi, I made my first electric bike with a conversion kit I got from the internet. I attached 3 12V batteries to a 36V controller. The controller has several wires going to the brakes, motor (36V, 350W), brake lights, on/off switch etc... (in the picture below you can see the circuit as it is...

Hi, my specifications: I have an electric motor 36 V , 450 W and 450 rpm mounted on my old (heavy) bike. I placed three batteries of 12 V, 14 aH in series ( each has a weight of 5 kg) together with a 36 volt controller. I tried to make an electric scooter of it (instead of a bike) so the...