OwnerPaul Nilssen
Owner's Other EVRansomes Electric Mower
LocationPenguin, Tasmania Australia map
Email email image
Vehicle Electric Mower Mark ll
MotorPerm Motor 132 Permanent Magnet DC
Motor good for up to 12kW, but draws less
than 900W in this application. Way over
No-name Chinese solenoid. On/off.
Controlled by a switch on the handle as well as a key master switch.
Batteries0.00 Volt, Nickel-Metal Hydride
Prismatic Prius packs - Panasonic?
10 series packs 7.2V each
System Voltage72 Volts
Two Chinese no-name 36V chargers in series with a centre tap common
Top SpeedAs fast as you want to push
RangeOne charge is enough for a small suburban back yard
Curb Weight0
A little heavier than standard but ok for a level block
Conversion Cost$10 for the dead mower from a Tip Shop.
$0 used Prius packs
$900 unused project motor
$100 for odds and sods
Son needed a mower and I had bits and pieces lying around in the shed. Perfect!
Perm 132 way over-powered for this job, but it was the motor I had. Even cutting the grass, the motor draws only 12A. Runs at 3600rpm and so is a little faster than the original 3.5 B&S 4-stroke. Prius cells came from a friend who had a new pack installed due to bad connections. Batteries get a little hot during
charging and in use, but are well clamped to avoid the
swelling often displayed by high current/hot NiMh cells.
Thanks to the blokes at work for welding and fabricating
adaptor plate and battery box.

code by jerry