Default Battery Usage Tool Not Available?

one of my favorite things about my Android phone is that I can see a breakdown of exactly what is using up my phones battery. The feature is built into Android, but am I missing something in terms of it not just being built properly into Honeycomb? I see the option, but nothing else.

Is there an alternative app? I want to know what's eating up my battery percentage wise.

thanks!
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Verizon GSIII (Rooted)
Nexus 7 (Unrooted)