Well, doing some math it could be worth it.
Take how long is your max call time and add 15% to it.
Take how long you use it for surfing the web, or how many hours your BB stays alive during the day, and add 15%. I mean, it's 15% .... If you want the big extension get the 2600 MAH battery.
http://www.blackberryforums.com/gene...rry-storm.html and
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