Turn Off Wi-Fi to Save Battery
Bluetooth, GPS, 4G, and Wi-Fi are the biggest battery killers. Now you can disable the latter and conserve some energy on the go while the phone is in sleep mode. Go through the "Settings" menu, click on "Wi-Fi," locate the "Advanced" menu, and select "Keep Wi-Fi on during sleep." That should squeeze some extra juice out of the battery.
Related: 10 Apps That Will Help Your Battery Last All Day