Juice Defender for Android: Saving Your Precious Smartphone Battery Power

When it comes to smartphone batteries, there’s always more you can do to ensure you’re getting the most that you can out of each and every charge. By controlling the device data connection and/or WiFi on your smartphone, JuiceDefender by Latedroid does exactly that.

The basic concept behind JuiceDefender is that by intelligently toggling wireless data and Wi-Fi on and off every so often, the battery on a smartphone using Android will be more likely to reach its optimal runtime. While it’s obviously these very capabilities that make smartphones so desirable, the reality is that they’re not always needed. Why waste precious battery life on something that’s not even in use?

There are 5 triggers for the enable/disable behaviour:

-Battery - when battery level gets low (less than 15%), disable APN/WiFi, and re-enable them when battery level is restored. APN/WiFi will also be enabled while the device is being recharged.
-Schedule - regularly enable APN/WiFi for a short period of time, to let background data sync occur (email, Twitter, Facebook, stock quotes…). If Quick is disabled APN/WiFi stays enabled for a longer period, useful if your data connection is very slow or you need to sync lots of data.
-Night schedule (requires UltimateJuice) - disable APN/WiFi during night time; you can also optionally put the phone in Silent Mode.
-Screen - enable APN/WiFi while the screen is on to allow browsing, tweeting, procrastination and general internet-powered enjoyment, regardless of scheduled events and battery level.
-Location (requires UltimateJuice) - this trigger controlled by the ‘AutoWiFi’ button. It disables WiFi when the device is not in range of any known WiFi network. The location is determined via the cellular network, so it’s usually quite coarse. It’s a fully automatic set-it-and-forget-it WiFi manager!

JuiceDefender is a free download in the Android Market, with some features requiring a paid upgrade. For more info, click here-