close up Cover on
OwnerDan Baker
Owner's Other EVsFirefly
2013 Sylvan Mirage 820 - The Led Zeppelin
LocationHalifax, Nova Scotia Canada map
Vehicle1996 Yamaha 40 hp 2 stroke outboard
bought outboard and crank for $120 CDN
MotorMars ME1003 Permanent Magnet DC
23kw peak at 72 volts
DrivetrainLong shaft
ControllerAlltrax 7245
72 volts at 450 amps, currently running at
48 volts
Batteries4, 12.00 Volt, Lead-Acid, AGM
Gently used 100lb UPS batteries
System Voltage48 Volts
Instrumentationvoltage display purchased
Top Speed8 MPH (12 KPH)
Prop size and pitch seem to be limiting
performance for boat size (10 ft rigid
hull) at 48v. Need to
test at 72v and/or larger craft
Range2 Miles ( 3 Kilometers)
Not tested yet, 400 lbs of batteries are
limiting range on small boat!
Seating Capacity2 adults
Curb Weight700 Pounds (318 Kilograms)
Outboard itself is lighter than factory
however 400 lbs of batteries makes for a
heavy small boat
Conversion Cost$1500
Additional FeaturesWinner of boater innovation award from Ed's Boat tips!

Coupler made from end cut off crank and flex Princess Auto
adapter ($20 parts, $100 machine shop)
Mounting adapter made from 2" square tubing
Layout of motor and controller allows cover to still be
Bilge pump mounted in exhaust manifold to provide cooling
via copper coil.

Prop pitch is limiting performance for small rhib boat, need
to test on larger craft :-)

code by jerry