without motorBattery trunkwiring D&D ES-31B hoodsXantrex Link 10out of the carCALB / SkyEnergy batterypack
Owner's Other EVs1999 Volkswagen New Beetle
1999 Volkswagen New Beetle
LocationFlensburg, Schleswig-Holstein Germany map
Web/EmailWebPage email image
Vehicle1999 Volkswagen New Beetle
MotorD&D Motor Systems, Inc. ES-31B Series Wound DC
72V - 144V range
Drivetrainmanual transmission, all gears are useable
ControllerCurtis 1231C
2011/01/25: update to a Curtis 1231C, Curtis 1221C replaced
Batteries45 CALB/Skyenergy SE 13 AHA, 3.30 Volt, Lithium-Ion
LiFePo4 (145Ah measured)
2011/03/15: 7 additional cells (38 to 45)
System Voltage148 Volts
ChargerZivan NG3
157,5V max. charge voltage (3.5V/cell)
HeaterMES-DEA RM4 3kW liquid heater
DC/DC Converter Chennic 144V
Input: 120-156 VDC
Output: 12-13.8 VDC @ 30 A
InstrumentationXantrex Link 10 (broken)
Top Speed65 MPH (104 KPH)
50 mph (80km/h) is the most confort speed; a little less than expected
Accelerationok but not a real "performance-monster"
Range60 Miles (96 Kilometers)
Watt Hours/Mile400 Wh/Mile
with D&D ES-31B Motor:
25,8kWh/100km (415Wh/mi)average
18,99kWh/100km (306Wh/mi) best
Seating Capacity4 adults
Curb Weight2,820 Pounds (1,281 Kilograms)
Tires195/65 R15 91H
Continental Eco Contact
Conversion Timestart: 03.06.2009
own wheel driving: 18.07.2010
test license plate: 29.10.2010
goods vehicle test certificate: 01.12.2010
on street: 07.12.2010
Conversion Costabout 20.000 US Dollar
Additional FeaturesPower Steering: Delphi Pump (Opel Astra G caravan)

Break Assistent: Vacuum Pump (Audi A4/A6)
Festo underpressure switch
It seems to me that a 144V package and a Controller >500Amps would be better.
This conversion is ok to get to work, but driving 50mph in germany is a little too less.
Constantly 60mph and a 60 mile range will be the target for our next conversion.
2011/01/25: update to a Curtis 1231C, Curtis 1221C replaced
2011/03/15: added 7 more cells up to 45
2011/03/25: taken out the D&D ES-31B to get space for a NetGain Warp9
25,8kWh/100km (415Wh/mi) so far, 18,99kWh/100km (306Wh/mi) best

code by jerry