Duffy 21Duffy 21Duffy 21Duffy 21Duffy 21
OwnerKeith Mercill
Owner's Other EV1989 Ford Ranger
LocationHendersonville, Tennessee United States map
Email email image
Vehicle1994 Duffy 21 Old Town
21' Electric Boat
MotorGeneral Electric Compound Wound DC
Same 36 volt motor you would find in a
golf cart.
DrivetrainUsing a 5" motor pulley and a 9" drive
shaft pulley. V belt connects the two.
ControllerCurtis
250 amp controller
Batteries6 Crown 235 AH, 6.00 Volt, Lead-Acid, Flooded
System Voltage36 Volts
ChargerSolar SP100 125x125x36
3 100 watt panels produce 6 amps on a
sunny day. Panels are mono crystalline and cost
$189.00 each. Charge controller is from Solar
Converters Inc. 5 amp @ 36 volt
HeaterNone
DC/DC Converter None
Using two of the traction batteries for radio,
GPS, lights and gauges.
Instrumentation1) 10 amp meter. 1) 100 amp meter. 1)50 volt
meter. 1)36 volt meter. 1) GPS.
Top Speed6 MPH ( 9 KPH)
Motor draws 75 amps @ 6 mph and 20 amps @ 4 mph.
Used GPS for these figures
Range36 Miles (57 Kilometers)
Boat will run about 9 hours with no sun at 4
mph.
EV Miles
Current: Miles (0 Kilometers)
Seating Capacity12 Adults
Curb Weight3,300 Pounds (1,499 Kilograms)
TiresNA
Conversion Time3 months
Conversion Cost$4,000.00 Including boat.
Additional FeaturesAll the lights have been changed out to led's. The radio was changed
out to a Boss SD, USB radio with no moving parts.
I found the boat on Craigslist in Austin Texas for $2,900.00. The
batteries take about 1 day to charge back up from a days running on
the lake. We use it at night for going out to dinner and just
cruising. When it's not in use it sits in the slip with the sun
charging the batteries. The best part is no gas, oil, filters or
impellers.

code by jerry