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05.04.2010, 03:08 PM
Cost of these 15Ah A123 prismatics:
$2.50/Ah x 15Ah
= $37/cell
= $0.77/Wh
For a 48volt pack:
16s1p pack - 720Wh - 51.2V nominal/15Ah rated
$592 + shipping
Rough calculations: @40km/h (25mph) conservative calcs, hypothetically if you drove 30 miles a day, using 100% DOD.
30 miles range (w/o pedal assist)
2000+ minimum cycle life (to 80% OC) - 100% DOD
= 60,000 miles minimum life mileage
=$0.01/mile over minimum life expectancy
=+$0.002/mile of electrical power bill @ 9 cent/KWh (the rate I pay in SK, Canada)
Pretty dang cheap transportation if you ask me. At the discharge rates you see with an ebike, these batts should last alot more than 2000 cycles if the pack is built properly.
Metallover, what are the capacities your Turnigy packs now? How old are they?
“The modern astrophysical concept that ascribes the sun’s energy to thermonuclear reactions deep in the solar interior is contradicted by nearly every observable aspect of the sun.” —Ralph E. Juergens
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