Linked by Thom Holwerda on Tue 20th Mar 2012 21:01 UTC
PDAs, Cellphones, Wireless Because I've been spending days browsing through XDA, reading CM changelogs, and flashing nightly builds, I'm still in an Android state of mind, so excuse me for more talk on the subject. An interesting study has been performed which found that advertisements in Android applications are a huge battery drain - they account for up to 75% of an application's battery usage.
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JuiceDefender to the rescue!
by phoenix on Tue 20th Mar 2012 22:54 UTC
phoenix
Member since:
2005-07-11

Configure JD to turn off all radios (3G, 4G, wifi, GPS, etc) while the screen is off. Configure it to turn data on every X minutes (I use 2 hours) to allow apps that need to sync to do so. And then never worry about it again.

Without JD, I'm lucky to get 20 hours with my 2011 Xperia Pro, even when most auto-sync stuff is disabled. With JD configured as above, I can get just shy of 50 hours with regular usage (GMail, GReader, Facebook, VX ConnectBot, Opera Mobile, various other little apps most with ads).

If the data connections are off, then none of the ad systems can update, and your battery doesn't drain. And when the data connection is on (since you're using it), then the ad systems can update, and your battery isn't drained any extra.

Works so well, I even paid for JD+. ;)

One of the nice things about Android are the ad-supported versions of paid apps, as they allow you to try-before-you-buy. Especially since the "refund window" on Android is only 15 minutes now.

Reply Score: 4

Earl C Pottinger Member since:
2008-07-12

I was just going to ask about if something does what you just described.

What would the difference be between no ad-supported apps running on the phone vs ones running but with JD running also? 5%? 10%? More?

Reply Parent Score: 1

phoenix Member since:
2005-07-11

Would probably depend on how often you configure the apps to sync. If you have things sync every 2 hours (same as with JD enabled), then the difference shouldn't be too much.

However, since I don't have any phones without JD installed, nor do I have any wish to use a phone without JD enabled, I can't give you any solid numbers. ;) JD is one of my "must be installed and enabled before I configure the phone" apps (along with 3G Watchdog).

Reply Parent Score: 2