Nexus 5 standby time increases sharply after installing Android M
A Nexus 5 with Android M installed had 2.7 times the standby time as an Android 5.1.1 powered version of the phone
Android M is going to have a few interesting and exciting features. One of them is called Doze and is activated when your Android handset is inactive for a period of time. With Doze, the phone goes into a deeper sleep than it currently does and and a result, standby times are more than doubled. Once Doze is disabled (which happens when you pick up the phone), syncs and open tasks which were halted are carried out by the model.
Another feature of Android M is App Standby. With this feature, once your phone is unplugged, apps deemed to be inactive are prohibited from receiving network support and any syncs and open jobs are suspended. Once you plug in your phone, the idle apps will regain network connectivity. Android M will most likely offer those who need specific apps to run at all times, the ability to disable the feature on certain apps.
To see how Doze and App Standby might work in real life, a Nexus 5 was loaded with the Android M Developer Preview and measured against the same model loaded with Android 5.1.1. The result? After 8 hours in standby, the Nexus 5 with Android 5.1.1 consumed 4% of its battery life as opposed to 1.5% with the Nexus 5 running Android M. After 24 hours, the Lollipopped version of the stock Android phone had burned through 12% of its battery life while on standby. The Android M powered handset had used just 4.5% of its juice during the same amount of time. After 48 hours, the Nexus 5 with Android 5.1.1 inside had devoured 24% of its battery power compared to the 9% used on the Android M powered version of the phone.
The Nexus 5 with Android 5.1.1 installed was projected to provide 200 hours of standby time. With Android M, the standby time was projected to jump to 533 hours. That means that Android M provided the phone with 2.7 times the standby time available with Android 5.1.1. This is an exciting bit of technology that Android users should be greatly looking forward to.
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source: computerbase.de (translated)