May 16, 2014

Nexus 7 (or Tablets in general) Battery Life Extension

The following tip is mostly for Android-based Tablets w/o a built in Data Modem (ie. WiFi only models).  I noticed if I turn on Airplane Mode but keep WiFi on which essentially works as normal, my battery life on a 2nd Gen Nexus 7 extends by a day or two while on standby.

I don't really know why this is but my theory is that Androids by default is written for Smartphones with Voice/Data modem and it probably has a bunch of processes and checks in the background to ensure the smartphone is working properly (ie. checking cell signal strong, etc.).  For a Wifi-only tablet, there is no need to keep those processes running, hence by turning on the Airplane mode and leave Wifi on, it disables all cell-phone or data modem related processes on the background.

I am currently testing this on an iPad, we'll see if iOS can benefit from such tip.

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