AAA cell vs. D cell

This question has been bugging me for a while now. What's the difference between a 1.5v AAA cell battery and a 1.5v D cell battery? Why is the D cell bigger? Is that just for weight, or does have more resistance, like it lasts longer? Why is one better? Thanks!

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Bran (author) 10 years ago
Ah, thanks. That'll help a bunch.
jarv3410 years ago
an alkaline AAA cell is rated at about 624mAh where a D is 20500mAh, so for a device that sinks the same current it will last about 30 times as long with D.

http://en.wikipedia.org/wiki/Battery_%28electricity%29

acer7310 years ago
Like tool said the larger the battery the more chemicals it can store
capacity, more chemicals=longer output
teaaddict31410 years ago
a D batter lasts WAY longer than a AAA