Under the hoodChargerApr/2014
OwnerDoug Hart
Owner's Other EVs Massey Ferguson MF10 Garden Tractor
AVCO New Idea EGT200
1971 General Electric Elec-Trak E12
1972 General Electric E12M
LocationMarkham, Ontario Canada map
Email email image
VehicleSears LT11-36
Old rusted broken riding lawn mower
Motor Delco starter/generator
12 volt S/G of a 44yr old Tecumseh HH120 12hp
gas engine
Running at 24 volts, 45 minutes non stop use
motor to hot to touch.
Drivetrainbelt+stock 5sp trans axle
2 speed motor no controller
1 solenoid.
Batteries2 Interstate 29DC1, 12.00 Volt, Lead-Acid, Flooded
Sams Club Deep cycle 125 amp hr
System Voltage24 Volts
Charger 24volt automatic
Yardworks cordless push mower charger,
24volt, 5amp, automatic shutoff when batteries
DC/DC Converter
Tap off 1 battery for 12volts
Volt meter
Top Speed5 MPH ( 8 KPH)
The same as ICE
2speed motor, 5 speed trany plus reverse,
10 forward and 2 reverse speeds.
AccelerationAlmost instant
Range3hrs +???

Kids bomb around, on and off all day long.
Watt Hours/Mile?
Seating Capacity1 adult
Curb Weight200 Pounds (90 Kilograms)
Conversion TimeWinter project
Conversion Cost$300
Additional FeaturesHas lights, horn, no mower deck.
Has momentary foot switch for motor, 2 speed switch on dash and 2
Spent some time over 1 winter cleaned painted and put this thing
Tried 3 or 4 different configurations ended up with what you see.
Motor spins the wrong way and is not reversible so I put a twist
in the drive belt (figure 8) to get the right rotation for the
trans axle. Found that grounding the field terminal gave me lower
motor speed (2sp)

This is more of a kids toy than a riding mower, I do use it to
pull a trailer for yard clean ups.

Best thing about this is jump on, turn the key, pick a gear, step
on the foot switch and go.

Nov 28/10 Video> WebPage

Update: Feb 1/11
Picked up 24volt automatic charger from a Yardworks cordless push

Update: Apr/2014
Tractor is now owned by my friends kids who are having a blast
driving it around.

code by jerry