Owner | Lennon Rodgers | ||||
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Location | Pasadena, California United States map | ||||
Web/Email | WebPage | ||||
Vehicle | 2007 LIFAN TMS WebPage | ||||
Motor | Mars ME0709 Permanent Magnet DC 300 amps peak and 125 amps continuous, 24-72 VDC, brushed PM: WebPage | ||||
Drivetrain | No transmission (direct drive) 72 Tooth (ANSI #40) sprocket in the back 12 Tooth (ANSI #40) pinion on motor | ||||
Controller | Kelly KD72301 300A for a PM with Regen: WebPage | ||||
Batteries | 6 B and B EVP 44-12, 12.00 Volt, Lead-Acid, AGM | ||||
System Voltage | 72 Volts | ||||
Charger | Soneil 1206S 12 Volt 3 Amp Constant (qty = 6) WebPage | ||||
DC/DC Converter | Kelly HWZ Series DC/DC Converter (60V-84V to 12V 300W) WebPage | ||||
Instrumentation | Drain Brain WebPage | ||||
Top Speed | 45 MPH (72 KPH) | ||||
Watt Hours/Mile | 75 Wh/Mile | ||||
EV Miles |
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Seating Capacity | 1 adult | ||||
Curb Weight | 480 Pounds (218 Kilograms) | ||||
Conversion Time | 75% of my weekends for 3 months | ||||
Conversion Cost | Total (motorcycle chassis and all): $2800 Motorcycle Chassis $650 Motor $481 Controller $350 Throttle $50 300 Amp Fuse & Holder $15 Battery Cables $28 Battery Cable lugs $13 High Current Switch $17 Metal Brackets & Supports $50 Metal for Mounts $30 Misc $100 72 Tooth Sprocket $78 Chain $25 12 Tooth Pinion $14 Nuts/Bolts $40 Shrink Cable Wrap, Wires, etc. $50 Batteries $280 Charger $260 72V to 12V DC/DC Converter $100 Instrument (Brain Drain / Cycle Analyst) $181 Total $2,812 | ||||
Additional Features | More info here: www.electricmotion.org Pseudo parts list: Motor (Mars Electric: ME0709, 300 amps peak and 125 amps continuous, 24-72 VDC, brushed PM): WebPage Controller (Kelly Controller: KD72301, 300A for a PM with Regen): WebPage Adapter for controller (to PC): WebPage RS232 Cable (to PC): WebPage Fuse (ANE 200A-500A) WebPage Fuse Holder (ANDU) WebPage Display / Real-time Analysis: WebPage Throttle: Magura 0-5K Twist Grip: WebPage Charger (Soneil 12 Volt 3 Amp Constant (qty = 6)): WebPage Copper lugs for battery cables: Ebay Battery cables (welding #4 wire): Ebay Electrical Plug for Tank (for charging with extension cord): WebPage 72-tooth sprocket for rear: Azusa Engineering, tony@azusaeng.com 12-tooth pinion for motor: McMaster Carr, Part #: 2500T444 WebPage ANSI #40 chain: McMaster Carr, Part #: 6261K448 WebPage High Current Manual Switch: Local automotive store DC/DC Converter (60V-84V to 12V 300W) WebPage Note: very large - might consider a different one. Other options (considered but did not purchase): Throttle: Hall 0-5V Twist Grip WebPage Charger (24V-72V/15A-40A) WebPage Main Contactor (24-84 VDC Coils 400Amps) WebPage | ||||
Whatever you estimate for time, cost and mass: add at least 20% I have variable regen with the left grip/twist. Regen is activated with the old engine start button (right thumb), though it could also be added to the rear brake switch. My initial calculations (Excel) match the actual performance quite well (predicting max current, range, max speed, etc.). Here are my calculations: WebPage Here's a video of it in action: WebPage Some construction pictures: WebPage |