Rear Battery setUnder front hoodInteriorRear seatCharging door
OwnerKittipol Saengoumnuayporn
LocationLaksi, Bangkok Thailand map
Web/EmailWebPage email image
Vehicle1996 Volkswagen Vento 1.6 litre
4 Doors
Motor Series Wound DC
8 Inch surplus motor. This motor weights hefty 150 lbs.
Reverse by contactor.
DrivetrainModified 4 Speed Automatic Transmission. Direct coupling with fixed gear ratio. Remove around 20kg of transmission parts.
ControllerCurtis 1231C-8601
Mounting on large heatsink. So far so good, but current limit at 500A seems to be annoying. Will later on develop own controller with +1,000A capability.
Batteries9 Trojan T-1275, 12.00 Volt, Lead-Acid, Flooded
System Voltage108 Volts
Charger
9 x Individual switchmode Charger (Prototype) +90% efficiency. No need for BMS. Will complete charging the empty pack in 10-12 hours. Goal is not fast charge, but aim to prolong battery service life.
HeaterThailand is very hot
DC/DC Converter
Using separate 12V accessory battery with additional charger.
Instrumentation104-116V meter,
0-500A ammeter
Top Speed55 MPH (88 KPH)
at the moment, due to 2nd gear locked. Will do +70mph when implementing 3rd gear.
AccelerationGood low end speed around small road and congested area, but a bit slow in highway. Thai people, especially in Bangkok, drive much faster and meaner than in the USA.
Range40 Miles (64 Kilometers)
at 80% DOD with highway run most of the time. If drive slowly, it could be +50 miles.
My normal commute is less than 25 miles/day.
Watt Hours/Mile300 Wh/Mile
Better than expectation due to weight removal from transmission. This car is undergone several improvement to increase efficiency, speed, range......
Seating Capacity5 adults
Curb Weight3,097 Pounds (1,407 Kilograms)
Original 2,860 lbs.

TiresOriginal 185/65/R14
Conversion TimeAround 2 months
Conversion Cost$12,000 USD without donor car
This project has proved to exceed our expectation for everyday short commute electric vehicle. We will include several features:

Air condition
Power steering
Gear change to increase top end speed

code by jerry