[AnthonyWasH3r3]

To me, iOS 5 has been a huge battery saver. Idk why.

[Twicks]

Yes, you can turn Siri off.

Thanks for this tut iRun :3
I'll definitely do some of this stuff when I get my 4S

[jaydeff]

Instead of turning off Siri altogether, you can just turn off raise to speak to improve battery life.

located in Settings > General > Siri > Raise to Speak off

[danbirk]

Nice little guide, nothing new, but still many didn't realize how much this drains youre battery.