Comparative energy cost?
-- Prices (Fall '95) courtesy of National 5&10
-- Units are mAh/$
- Alkaline cells:
- 2 D @ $2.97: 8000/1.49=5400
- 2 C @ $2.97: 3200/1.49=2150
- 4 AA @ $3.59: 1000/0.90=1100
- 4 AAA @ $3.59: 400/0.90=440
- 9 V battery -- heavy load
- 1 alkaline @ $2.99: 470/2.99=160 at 10 mA
- 2 heavy duty @ $2.99: 180/1.49=120 at 10 mA
- 9 V battery -- light load
- 1 alkaline @ $2.99: 500/2.99=170 at 1 mA
- 2 heavy duty @ $2.99: 400/1.49=270 at 1 mA
"http://www.physics.udel.edu/~watson/scen103/battery2.html"
Last updated Sept. 19, 1996.
Copyright George Watson, Univ. of Delaware, 1996.
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SCEN103 Battery Economics