Bench testing motor and transmissionMotor mountedController panelDashboardCustom interior to hide all the batterie
OwnerPeter Chave
LocationLawrenceville, Georgia United States map
Web/EmailWebPage email image
Vehicle1973 Volkswagen Microbus
MotorNetgain Warp 9 Series Wound DC
Drivetrain4 speed manual
ControllerEvnetics Soliton Jr
Batteries48 GBS 100Ah, 3.20 Volt, Lithium Iron Phosphate
Lithiumate Lite BMS managing the pack.
System Voltage154 Volts
ChargerManzanita Micro PCF-30
Given universal voltage and battery type
make this charger a safe choice as the
project develops.
HeaterCoat, Hat & Gloves
DC/DC Converter Evolve Electrics Generic DC-DC
55A output
InstrumentationPack Amps, Pack Volts, Motor Overheat, BMS
error, Lowest cell, Highest cell temp.
Top Speed70 MPH (112 KPH)
As fast I as need to go...
AccelerationVery reasonable, need to use 1st for steep
hills, otherwise 2nd or 3rd to pull away is
Range40 Miles (64 Kilometers)
Watt Hours/Mile350 Wh/Mile
With original Lead pack was around 425,
initial tests with Li giving results in the
350 range.
EV Miles
Start:62,445 Miles (100,474 Kilometers)
Current:69,780 Miles (112,276 Kilometers)
Total:7,335 Miles (11,802 Kilometers)
    As of 10/5/2013
Seating Capacity4 adults
Curb Weight2,723 Pounds (1,237 Kilograms)
2,723 lbs is the factory original curb

My calculated difference between the
original ICE+gas tank and the
Motor/Controller/Batteries is net
decrease of about 200 lbs.

I'll add another 150 lbs for misc
mounting pieces and other strengthening
items. So looking just under the original
curb weight.
Conversion Time3 Months of one night a week at the shop,
plus hours of planning...
Additional 1 month of time, working nights
and weekends to upgrade to LiFEPO4.
Conversion Cost$10,000 all in, including the bus.
Additional $8,000 for LiFEPO4 upgrade.
Additional FeaturesLithimate BMS + homemade RPi based web server to generate web
page with battery statistics for viewing on WiFi enabled
devices (iPhone, etc.)
12/12/2009 : It's on the road!!! - Woo hoo!
Thanks to everyone on the EV forums for help and advise!
02/08/2010 : First electric commute!
07/25/2012 : Completed LiFEPO4 upgrade, very happy!

code by jerry