BeforePartsSolar Charged Commuter
OwnerMatt Chamberlain
LocationDayton, Ohio US map
Email email image
Vehicle1987 Suzuki SP 200
Slower than a slow thing 4 stroke becomes an electric daily commuter and can still go to dirt bike parks :-)
MotorBriggs and Stratton ETEK Clone - update - replaced with ME0708 ETEK-R Permanent Magnet DC
10HP Magna Motor Permanent Magnet DC
10HP Continuous - 15HP Peak Permanent magnet ETEK type Brushed motor
update -
The Etek warped and has been replaced with a beautiful ME0708 ETEK-R from marselectricllc.com
Drivetrain48v AGM "Werker" Batteries Plus 33AH Deep Cycle U1 size batteries through an Alltrax 4844 to a "Magna Motor" - reworked Briggs and Stratton ETEK Brushed motor
ControllerAlltrax AXE-4844
Programmable 400AMP controller
Batteries4 Werker WKDC12-33J, 12.00 Volt, Lead-Acid, AGM
U1 Lawn tractor form factor - fits with a millimeter to spare
System Voltage48 Volts
Charger Mastec
Mastec 10A and unknown brand 2A onboard chargers
Heaternope
DC/DC Converter unknown
I get 11.9 V out of it - and it is working very well.
InstrumentationStock
Top Speed50 MPH (80 KPH)
It seems I got the gearing perfect at 10 front and 45 Rear
Accelerationbetter than the 200cc 4stroke that it had before :-)
Range12 Miles (19 Kilometers)
My mileage has been varying - hope to get 15 or so as I get better at charging the batteries fully
Watt Hours/MileI will update this field when I hook up my serial interface and do some logging.
EV Miles
Start:8,823 Miles (14,196 Kilometers)
Current:8,850 Miles (14,239 Kilometers)
Total:27 Miles (43 Kilometers)
Seating Capacity2 adults
Curb Weight250 Pounds (113 Kilograms)
20 lbs more than stock and just 10 lbs more than me :-)
TiresKenda K-270 front
Cheng Shin 858 Rear
Conversion Time19 days
Conversion Cost1350 ish dollars
Additional FeaturesI've got 90 Watts of solar on the roof and am charging marine batteries with a couple Harbor Freight specials - I'm charging the bike off of those batteries - totally off the grid - infinite MPG :-)
Tried to keep it light and spartan - like it was originally.

I went with a 10 tooth front sprocket and stock 45 tooth rear.

Since I had just bought a new rear sprocket and chain before this project, I balked at switching over to an ANSI #50 sprocket and chain setup which the 7/8 keyed shaft of the Etek motor wanted. My brother turned down a #50 10- tooth sprocket to be .227ish wide to fit into the 1/4 wide links in the existing stock 520 chain and it works great.

I have replaced the motor with an awesome awesome ME0708 ETEK-R from marselectricllc.com

code by jerry