How to drain iPhone 3G battery?

Tips on draining iPhone 3G battery in minimum amount of time. All you have to do:

• Turn on 3G.
• Turn on Bluetooth and connect to a headset.
• Turn Wi-Fi and "Ask to Join Networks" on.
• Play music through built-in speaker.
• Open Maps, and use the "Locate Me" feature using GPS. Leave the iPhone using that apps.
• Turn screen brightness to maximum.
• Set the iPhone not to lock.
• Set the email/calender/similar application to push and minimum of 15 minute interval.
• Turn anything else you can find on.

Most likely the battery will drain within 90 minutes or less.

Originally posted by blogger 37prime [Source]

Another important post:

How to solve iPhone battery drain, apps crash, and slow response?
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by Anurag Bansal

Awesome blog.
I followed his instructions and that solved my problem.