Svein Medhus' Ford Express Electric Home Page

The first car to be converted in Norway. Street legal as of 17. February 1997.

Ford Express Electric


Make/Model Ford Express 1986 (similar to Ecostar) 
Motor: Advanced DC 9" motor dual shaft

 28,5 hp continuos / 100 hp peak 

Motor coupling: Clutchless 
Transmission: 5 speed manual with Mobil ATF SHC fully synthetic oil 
Controller: Curtis 1231C, 144 volt /500amps, 1,5/15 kHz 
Batteries 12 Optima Yellow Top 12 volt, semi traction batteries 
Instruments: Ammeter, voltmeter and aux. (12 volt) voltmeter 
DC/DC converter Vicor VI-L52-EU , 100-200 volt input, 14.5 volt / 13.3 amp output 
Cabin heating: 1500W solid-state heater running off the 144 volt.. 
Battery heating: All batteries in a wooden box in the cargo area. 820W heater with high speed fan. Temperature adjusted to 20 degrees Celsius during winter season. 
Charging: One individual charger for each battery. 6 amps constant current until 14,7 volt. 14,7 volt until current drops under 0.7 amps. Finally, 13.7 volt float until unplugging charger. Temperature compensated. Based on Unitrode UC3906 part. 
Range: Need to travel a total of only 17 km (10 miles) each day to and from work. Have traveled 37km (23 miles) which resulted in a 65% DOD. 
Weight before conversion: 970 kg (was down to 750 kg after removing ICE components) (540 kg in front 430 kg rear). 
Weight after conversion: 1130 kg (550 kg in front, 580 kg rear). 
Acceleration:  0 - 50 km/h (0-31 mph) 2nd gear: 5 seconds. 

More information about my EV

A nice cool location for the controller and DC/DC converter.

Take a closer look under the hood

My Optima Yellow Top batteries in the back of the car

Animated clutchless design pictures

Clutchless design explained with pictures

This is reuse of the motorbox.

Optima YT Cycle graph

Getting the most out of your Optima Yellow Top batteries

Put your self in the driver's seat

From the daily life with my EV

Other Personal EV Home Pages

EV conversion Follow step by step how Jerry made his conversion.

Johans EV link page / el-bilar About his EV and many EV links.

High Energy EV Rich is working on an interesting project..

Other related EV links

Phoenix Chapter Electric Auto Association Outstanding source for EV information.

Electric Vehicle / Alternative-fuel Directory A good starting point for exploring EVs on the Internet.

Citibee by PIVCO

PIVCO -Technology for friendly mobility Norwegian EV to hit the marked in 1998.

Optima Batteries Inc Information about Yellow, Red and BlueTop batteries.


Bokanmeldelser (Norwegian only)

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Last updated 29-December-1998

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