One of the primary applications downloaded by smartphone users is a task-killing application. The idea is that by shutting down all applications running in the background of a smartphone, less of the phones power will be tied up in running those apps and, in turn, preserving battery life.
But is there any real science behind this? Logical thinking would say that if fewer apps are running while a phone sits dormant in a purse or pocket, then the battery life would be increased. Whether or not this is actually the case is one thing that was put to the test by some researchers at PCWorld Labs.
The result was this article on task-killer apps.
__________
Task-Killer Apps: Will They Help or Hurt Your Battery Life?
By Armando Rodriguez
If you have an Android phone, you’re probably dissatisfied with its battery life. After all, many phones, especially 4G models, can’t make it through the day without needing to sip from a power outlet.
Some frustrated Android users turn to task managers such as Advanced Task Killer to preserve the handset’s juice. The theory makes sense: Apps for Facebook, Google Maps, Pandora, and Twitter, for instance, love to start up in the background. If you automatically and regularly stop such apps, the thinking goes, you’ll end up with longer battery life.
But for everyone who advocates a task killer, there’s another Android user who claims that such tools actually decrease battery life. Their argument: Apps that start up in the background will just restart themselves after an app killer stops them. And all that activity–the app killer stopping processes, and the apps starting themselves up again–will knock bars off your battery meter.
In the PCWorld Labs, we hate unanswered questions. So we tested an app killer on a variety of phones. Our results indicate that neither side is entirely right. Overall, using an app killer produced an increase in battery life, but one so small that most people wouldn’t notice it. And on a couple of phones, battery life remained unchanged, or decreased, with an app killer on the job.
The Test
In order to test whether task killers would help with battery-life issues, we downloaded Advanced Task Killer on five different 4G Android smartphones. Advanced Task Killer is arguably the most popular task killer in the Android Market, and the one that is most frequently recommended. (Note, though, that the developers of Advanced Task Killer make no claim that their app will improve your battery life.)
__________
For the full article, including test results, head to PCWorld’s website, here: http://www.pcworld.com/article/244067/taskkiller_apps_will_they_help_or_hurt_your_battery_life.html