Follow along with the video below to see how to install our site as a web app on your home screen.
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If you don't follow it, then learn about it. You can read here:I don't follow how an app that is used and terminated within 2 minutes would use more battery life than an app that, like you said, controls your phone's data connectivity.
If you don't follow it, then learn about it. You can read here:
Overview | How to use JuiceDefender
And here:
http://androidforums.com/android-applications/335110-why-you-dont-need-task-killer.html#post2681361