● Android - Kit-Kat (and above) battery discharging in less than a day
If your Android (running Android Kit-Kat or above) device's battery runs out before the end of the day or only last 1/2 day, here is a possible solution to fix it.
- Go to Settings ► Location.
- Check if the "Mode" is to "Battery Saving". If not, click on "Mode" and set it to "Battery Saving".
- If the above hasn't improved your Battery life,
Go to Settings ► Privacy ► Privacy Guard - Scroll down to "Google Play Services".
- Click on it and hold to get the settings for it.
- Then scroll down to the "Wake up" entry and from the drop down list, (on the right of "Wake up"), chose: "Denied".
- Restart your smartphone.
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I've seen it happening on a Samsung S3 with an AOKP Kit-Kat ROM, a Samsung S6 with a stock Lollipop ROM and on a Motorola Droid 4 running a Cyanogen 11