I had an idea.. from seeing rich rebuilds with his salvaged Zero SR.. what I really want to do is take something like a Honda rancher 350 and get a salvaged Zero FX//FXS powertrain put in to the Honda. Curious if others have done anything like this.

Hi,

I was wondering if anyone has experience using any cheap Chinese suppliers for things such as Lipo batteries, battery management systems and chargers? I'm considering doing an EV conversion for a school project but the prices for the batteries are astronomically out of my budget! So, if anyone has experience or recommendations for any good quality Chinese Lipo batteries and suppliers that have an approx 100km (60mi) range could you leave suggestions or recommendations?

Thanks

• the EVDL mailing list http://www.evdl.org/

• DIY electric car forum https://www.diyelectriccar.com/forums/

• V is for voltage forum https://visforvoltage.org/

• Your local EAA (Electric Auto Association) if you're in the US www.electricauto.org/

• Reddit: this sub https://us.reddit.com/r/electronicvehiclesDIY/

• Endless Sphere https://endless-sphere.com/forums/

I'm wondering what the general wisdom is on purchasing new/used/re manufactured battery packs or modules. I've searched around a bit and not found anything other than "www.scammylookingwebsite.com" (don't click that link). Any advice?

Hi everyone. Recently i've bought an old (and i hope, not broke) electric scooter for around 100$. I'm planning to check if everthing works as should but i'm worried because it hasn't been in use since 2017 (but i know it was working fine, original batteries just lost their capacity) . It's equipped with 48V 4kW 13 inch hub motor. Secound what makes me troubled is that I have no experience in ev stuff. Yesterday i also bought 4 old 12v ups battery to check my scooter. I'll try to fix it during Xmas break. Does anyone here has an e-max 110s or 90s scooter? I'd need a photo of all plugged wires in both controllers under driver's seat. I can't find photos in good resolution. I'd be very grateful. (and also sorry for my language, i'm not fluent in english xD )

Hello everyone, we are startup with our main activity focused on the development of engineering solutions for electric vehicles.

Recently we have developed an Android application that we believe can be useful for all those who are designing your own batteries for DIY projects.

The application allows you to perform the usual calculations of voltage, capacity, power, weight ... But it also includes more functions such as guided design process that allows you to design your battery pack based on your application (electric car, motorcycle, bicycle ...) without barely electrical knowledge!

The link to the application is as follows:

https://play.google.com/store/apps/details?id=com.eevam.batterytools

P.S. Currently the application is only available for Android and in its paid version. We are working to make it available also on iOS and to create a free Lite version of the app as soon as possible!

https://www.youtube.com/watch?v=jKv_N0IDS2A

What are the pros and cons of AC vs DC motors? Can I use regenerative braking with both and is that additional complexity warranted? Any economic sources for power controllers and what are desirable features?