engineering

We all know the problem with proprietary systems, so lets try and reverse engineer them! My Urban plus battery is showing it's age. A few things should be explained first: On the urban plus, the bike can be started with the battery, OR the Kobi system through the button or the smartphone...

Hi, I came to this forum to ask a group of people who are familiar with hub motors about my project to build hub motors for my brother’s power wheelchair. We’re building an all terrain power chair from the ground up. Most power chair companies use brushed DC motors because of their fine control...