|Owner||Mark E. Hanson|
|Owner's Other EV||2009 Sun Go|
|Location||Fincastle, Virginia US map|
|Vehicle||1974 Volkswagen Karmann Ghia |
36ea CALB-130 batts for a 120VDC system (incase the house power goes out :-) with a 9" Warfield Netgain motor (same length as the 8" ADC). Charger is a modified 36V GC charger with a MC68HC908QY4 freescale uP programmed to cut back the charge current to 1A when any one of the 36 3.6V regulators starts regulating or the bulk charge hits 126V. Initially I built my own controller but now have a Curtis 1231C installed. All new brakes, bearings and helper springs, restoration, about $10k in car and $15k in conversion. Took me about a year with all the pesky battery balancers and associated monitoring circuitry to detect 4.0V and any wire/fuse popping off to stop the charger, then test each cell for proper failsafe operation.
|Motor||Netgain short 9 Series Wound DC|
This is a 9" motor, same length as an ADC 8"
|Drivetrain||standard VW bug tranny replaced after AAMCO trashed the first one (handed back in a box of parts, couldn't get humpty dumpty back together again). The adapter had to be modified a couple times due to clearance from lightenned flywheel to clutch. A 9" Netgain Warfield motor was used.|
Inside enclosure with contactors and muffin fan on heat sink between the back seat and firewall next to custom charger.
|Batteries||36 CALB/Skyenergy CALB 130ah, 3.30 Volt, Lithium Iron Phosphate|
lithiumstorage.com did a great job banding the cells together in groups of 6 for nice placement of 6 batteries totalling 360 lbs (instead of 1k lbs for a lead sled)
|System Voltage||120 Volts|
|Charger||Lester modified 36V golf cart charger for 130V charging|
The 36V charger was tweaked into a push-pull fashion with the upper and lower diode to the end pack and the other transformer winding to the battery center tap with a few windings on the secondary tapped down to get 129.6V final charge for 3.6V x 36 cells.
|Heater||2ea blow dryers mounted under dash and one for defroster elephant snotted into ductwork.|
|DC/DC Converter||Iota 120VDC|
|Instrumentation||The all important battery scanner was built in stereo to monitor all the 36 cells simoultaniously. Link-Pro battery AH meter is used to see AH in and out during run/charge.|
|Top Speed||65 MPH (104 KPH)|
Gets there eventually about 15 seconds I guess, not a race car but keeps up with traffic and gets me to-from work which I need to do to pay for the car :-)
|Acceleration||about 15 seconds 0-65 I think|
|Range||40 Miles (64 Kilometers)|
At freeway speeds, no cheating :-)
|Watt Hours/Mile||240 Wh/Mile |
At wall outlet actually about 300whr on this 2200 lb car. My E-Porsche was 3k lbs with ni-cads and 330whr so lighter saves some juice and handles *much* better.
|Seating Capacity||4 sorta (back seat is for kids only)|
|Curb Weight||2,200 Pounds (999 Kilograms)|
Start weight was about 2000 lbs for a 1974 Ghia, gained about 200lbs of battery weight.
|Tires||regular bimbo bug tires 5.6x15|
|Conversion Time||600 hours, about 250 hours just on the balancers.|
|Conversion Cost||$25k including vehicle (coulda had a Leaf)|