Control BoardControl BoardRear
OwnerKeith Mercill
Owner's Other EV1994 Duffy 21
LocationHendersonville, Tennessee US map
Email email image
Vehicle1989 Ford Ranger
Ford Ranger XLT short bed.
MotorAdvanced DC FB1-4001 Compound Wound DC
9 inch 144 volt DC motor.
DrivetrainRear wheel drive.
No clutch.
First gear 30 mph 5500 rpm
Second gear 55 mph 5000 rpm
Third gear is well over 70 miles an hour @ 5000 rpm
ControllerCurtis 1221B
This is a 1000 amp controller now I had the 400 amp controller
upgraded to a 1000 amp controller. This made quite a difference in
Batteries20 Crown 235 AH, 6.00 Volt, Lead-Acid, Flooded
Battery rated at 232AH @ 20 hour rate
Replaced Exide 3600 Batteries on June
15 2010 with US-2200. I had 430 charges
on Exide batteries and 9,421 miles.
Distance was down to 18 miles with two
people in truck. Replaced the batteries June
2016 at 24000 miles with Crown 6 volt.
(excellent batteries).
System Voltage120 Volts
ChargerZivan NG3
220 VAC on board
Heater2) 1500 watt ceramic cores Wired in parallel, About 30 amp
draw off traction battery.
DC/DC ConverterZivan NG1
220 volt charger with DC output of 120 volts.
InstrumentationCurtis E meter, Volt meter, Amp meter,
Tach, Speedometer, Controller Temp, Motor
Temp, Battery Temp.
Top Speed70 MPH (112 KPH)
This was for a distance of 1.5 miles. One
off ramp to the next off ramp.
Acceleration0 - 60 1:13
Range40 Miles (64 Kilometers)
80% DOD Charge at 50%
Watt Hours/Mile27 Wh/Mile
At 45mph I am drawing between 150 and 200
amps on a level road.
EV Miles
Current:27 Miles (43 Kilometers)
    As of 7/11/2018
Seating Capacity3
TiresDunlop P225 70R14
Conversion Time1 year 10 months
Conversion Cost$10,227.14
Additional FeaturesRemoved the power assist vacuum brakes and replace the master
cylinder with manual brake cylinder. I also removed the vacuum
pump and now have just manual
brakes which seemed to work just fine.
I installed 20 digital voltmeters to keep track of all the
battery voltages.
I paid $250.00 dollars for the truck with a hole in the
block, and spent $3,500.00 dollars to paint and replace old
worn out parts with new ones.
I drive it about 60 miles a week and charge batteries
between 15 and 30 miles.
All the lights were replaced with led's and the oil, gas and
temp gauges were converted to temperature gauges.
Bob Batson at EV America supplied most of the conversion
parts and was a great deal of help.
I couldn't be happier with the reliability and performance.
As of February 2015 I have put 21,200 trouble free miles on
the truck. Range is down to about 30 miles.
It costs me about 4 cents a mile for electricity.

code by jerry