controlsbattery meter
OwnerJerry Bennett
LocationIndianapolis, Indiana United States map
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Vehicle1989 Yamaha warrior quad
donor quad without engine
MotorAdvanced DC A89-4001/ Series Wound DC
6.7 inch 5/28 hp DC series wound DC. Now
A00-4009 part number.
Drivetrain# 50 stock Chain drive, 3:54 to 1 ratio
700amp @ 48 volts
modified Curtis design
Batteries4 Universal Batteries UB12750, 12.00 Volt, Lead-Acid, AGM
12 volt 75AH AGM 53# each. Chosen for
mounting, weight, and no spills
System Voltage48 Volts
ChargerMinn Kota mk-440
marine 10 Amp times four, total 40amps. 3
stage charger.
universal, will charge other vehicles, less
than other chargers for 48 volt
HeaterMotor gives off quite a bit of heat
Instrumentationstate of charge gauge from Lull 48 volt
Top Speed40 MPH (64 KPH)
fast enough
Acceleration3 seconds to full speed
Range13 Miles (20 Kilometers)
actual to follow, your mileage may vary...
Watt Hours/Mile350 Wh/Mile
260 A at full speed 86 amps cruise
Seating Capacity2
Curb Weight450 Pounds (204 Kilograms)
have not weighed the vehicle yet... but
figure about 150, batteries 220, motor 50.
Tiresoff road, stock
Conversion Timeabout 80 hours
Conversion Costabout 2300. with vehicle and charger
Additional FeaturesA economy "high/low" switch added, motor and battery life in
Resistor/capacitor setup for lighting using 36 volt headlamp
and stock tail lamp.
This is my third electric, I have learned a lot! Built for fun
and function.
Update 10-07 done! Runs well and is pretty quick, modifications
to contactors done to reduce resistance in contacts.
Added lighting and limiting switch to reduce current to motor
unless peak power needed, will save motor from overheating and
battery life. limits speed to 21 mph.
changed gearing for better acceleration and less top end, motor
seems to run cooler now.
Batteries are getting weak 1/14, update 10/21 AGM still running! I have some extra lithium
cells that I am going to retrofit into the existing battery
areas. Weight should go down 150 pounds.
DC/DC to be installed for BMS and lighting.

code by jerry