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Some stats on the Electric Mighty Boy.
The conversion was completed August 2004.
Originally it had Lead Acid batteries which were upgraded to Lithium Ion (phosphate) in Feb 2007.
A kWhr meter was permanently connected in the cab on the AC side of the on-board charger so the measurements shown here are from wall-to-wheels which is the most honest measurement of electricity consumption for an EV.
Measurements are up to December 2008.
LEAD ACID (flooded, 12 x TROJAN SCS225, 312kg, batteries exhausted at end)
time used - 29 months
average speed (estimate) - 65-75kmh
distance travelled - 10741 km
energy consumption - 2811 kW hr
fuel economy 261.71 Whr/km (421.18 Whr/mile)
LITHIUM ION (phosphate, 45 x LFP90AHA, 135kg, batteries still good Jan 09)
time used - 23 months
average speed (estimate) - 70-80kmh
distance travelled - 15151 km
energy consumption - 2843 kW hr
fuel economy - 187.64 Whr/km (301.98 Whr/mile)
LEAD ACID - 421.18 Whr/mile
LITHIUM ION - 301.98 Whr/mile