compact situationswitchesheaterbatteryboxBMS appfirst test mount
OwnerRichard Schneider
LocationNorth Rhine-Westphalia Germany map
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Vehicle1995 Fiat Cinquecento
lightweight minicar with simple technique for
our first conversion
Motor Enstroj EMRAX 228 3-Phase AC
permanent magnet motor, brushless, low voltage
version, combined(liquid/air)-cooled, IP21, up
to 100kW, up to 240Nm, up to 98% efficiency,
Drivetrainoriginal 5 speed gearbox without clutch.
Changing the gears very easy because of the
lightweight rotating masses of the EMRAX, but not necessary. 3rd gear all the time in the city.
Controller Emsiso edrive 400, now Emsiso emdrive500
500A, 125V, IP65
Batteries36 CALB/Skyenergy CAM72, 3.20 Volt, Lithium Iron Phosphate
monitored by Emus BMS
System Voltage125 Volts
Charger TC Charger HK-J 3,3kW
230V 16A AC,132V 32A DC, IP67, aircooled,
mounted in the opened original tank
HeaterDBK, about 1kW, self adjusting PTC heating
element, mounted instead of the original heating radiator
DC/DC Converter DMC WA9612450
InstrumentationAndroid based radio "Joying" with Emus BMS App
installed (working perfect)
Top Speed75 MPH (120 KPH)
more possible but not tested yet
Accelerationnice :-)
Range50 Miles (80 Kilometers)
in winter, not really tested, calculated by BMS
Watt Hours/Mile210 Wh/Mile
city traffic, demanding right foot
EV Miles
Start:65,000 Miles (104,585 Kilometers)
Current:72,387 Miles (116,470 Kilometers)
Total:7,387 Miles (11,885 Kilometers)
    As of 10/2/2020
Seating Capacity5 adults, as original
Curb Weight1,630 Pounds (740 Kilograms)
only 30kg more than original
Tires145/70R13 Yokohama "Blue Earth" summer
Conversion Time1 year,school project of my eldest son(12th
grade, "Jahresarbeit" at Waldorf School),
finished on the last day (of course), me as the assistant (and wallet)
Conversion Cost12,5 kEuro with new and used parts and the
technical inspections for the license plate

+2500€ after 2 years for a new controller :(
Additional FeaturesAudi electric vacuum pump with 2,2l reservoir and vacuum switch
Mercedes electric waterpump for cooling circuit(motor and controller)
GigaVac DC HV contactors
Panasonic DC HV relais
Bussmann DC HV main fuse 600A
Schrack DC HV circuit protection breakers
electric brake/regeneration adjustable with poti

2016.12.12 getting two Cinquecento for 100�
2018.02.01: license plates, yeah! (not so easy in germany)
summer 2018: P/I regulation tuned to better performance
field weakening for higher rpm activated,
sounds like a jet now beyond the valid (gear-)rpms
(90 km/h in the 3rd gear!)
2019.11.14: The Cinquecento is now our favourite car, degrading
our Diesels to grandfather clocks. It´s the perfect
city-hopper(and shopper)
summer 2020: the emsiso edrive400 died without announcement...
replaced with emdrive500 (more power:-)

code by jerry