Owner | Luis Pons & Vicente Santos |
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Owner's Other EV | 1994 Kawasaki Mojave |
Location | Valencia, Comunidad Valenciana Spain map |
Web/Email | WebPage |
Vehicle | 1970 Rotovator This machine is an old gasoline rotovator. As far as we know, it was built by a local small manufacturer. |
Motor | 3-Phase AC 48 AC, three phase, 1500W, four poles. Maker is FIMEC, Italian. |
Drivetrain | Belt driven, 3 speeds available. |
Controller | Kelly KIM7220 72v, 3 phase controller, 80A continuous, 100 max. |
Batteries | 10, 12.00 Volt, Lead-Acid, AGM Some junkyard small batteries we found... |
System Voltage | 60 Volts |
Charger | Custom made charger, charges in 2 hours. |
Instrumentation | State of charge indicator |
Top Speed | 2 MPH ( 3 KPH) You have to walk behind this thing! :D |
Acceleration | Well, it gets to speed very fast I guess. |
Range | 1 Miles ( 1 Kilometers) In fact, I don't think it could make a mile. We can use it for 15-20 minutes. This machine really needs Lithium! |
Curb Weight | 140 Pounds (63 Kilograms) Not sure, should be something close to that. It's an sturdy machine with a lead battery and a big motor! |
Conversion Time | 3 months, on free weekends |
Conversion Cost | ~300 euros. The controller is more expensive, but it will be used in other project so I am not adding the cost. |
Vicente Santos and me worked in this machine just to learn the conversion process, using cheap hardware. It has been quite fun, but now we understand why so many EVers reject lead-acid batteries. I guess this kind of battery really shines under low loads. With a discharge rate of 1-2C, it offers a very small (real) capacity. |