Fast prototyping ;-)Case studyBattery coolingBattery pack
LocationLucerne, Lucerne Switzerland map
Web/EmailWebPage email image
Vehicle1981 Yamaha RS 125 DX
MotorGolden Motors HPM-10KW fan cooled Brushless DC
. Initially I struggled to get a certificate for the continuous power measurements for the road registration procedure. But the Swiss registration officer assured me, that they won't request this, as long as the declaration on the motor looks trustworthy.
DrivetrainChain Drive
ControllerKelly KLS7250D, 24V-72V, 400A
Batteries72.00 Volt, Lithium-Polymer
New technology Graphene Lithium Ion Polymer cells from Shenzhen WESTART Technology Co. Ltd. 40 cells, 3.6V, 20Ah, continuous discharge 10C, totally 2.88kWh, water cooled.
I'm still working on the boxing of the battery pack.
DC/DC Converter
I will change the original board Voltage of 6V to 12V
Top SpeedTarget: 62 MPH (100 KPH) or up to 75 MPH (120 KPH)
AccelerationI'm curious to see!
RangeTarget: 31 Miles (50 Kilometers) or more
EV Miles
Start:20,533 Miles (33,037 Kilometers)
Current:20,533 Miles (33,037 Kilometers)
Total:0 Miles (0 Kilometers)
Seating Capacity2 adults
Curb Weight0
280 lbs (127 kg), estimated, including batteries
Conversion TimeI started the Project in November 2015.
The project is still going on. Slowly but surely. It's given me a lot of fun and a lot to learn.
Right now I'm working on the motor mount.

code by jerry