Battery Statistics
HeadWay 38120 - 3.2 volt 10 AH
LiFeYPO4
$19.00 USD
Voltage range: 2.0V - 4.0V
Current (max): 150A
Power (max): 480 W
Weight: 10.9 oz
Size (inches): L-1.52 W-1.52 H-4.78
Volume: 10 cu-in
Total energy: 32.00 watt-hours

Links...
HeadWay
38120 spec sheet
Cost: 1.68 Wh/$ ($ 0.59/Wh)
Weight: 46.82 watt-hours per lb.
Volume: 2.91 watt-hours per cu-in
Cycle life...
2000 cycles @ 80% DOD - 51.20 kWh
1500 cycles @ 100% DOD - 48.00 kWh
Life cost: $ 0.37/kWh
702 watts (max)/lbs.

Charging Information...
Voltage (max): 3.6 V
Current (max): 50 A
Power (max): 182 watts
Build a pack with this battery...

Series batteries: Parallel batteries:
Cost: $
Watt-hours per mile:
Optional pack title:
Metric

http://www.zuglet.com/batteries/batteryPack.php?id=1018&cost=19.00&whpm=400