Unidentified app using excessive battery I have a battery drain issue with a stock Nexus-7 (2013), Android 6.0.1, up to date with monthly patches. The battery is losing 15-20% overnight. Turning WiFi off overnight doesn't reduce it, or not much. The top consumer is just called "10017". 

Some background - A recent version of Sygic Navigation was showing high battery usage even when I didn't use the app. I couldn't keep it from running. After exiting it, or after force-stopping it, I would shortly find it running again. I deleted the app but kept its user folder. Maybe related?

I keep Google Account Manager and Google Play Store disabled when I'm not actively using them. This is not new; I've done it since shortly after the tablet was new.

I installed the August patches a few days ago; the tablet was rebooted by that process. The battery issue predates that update.



How can I find out what it (10017) is?
Try going to Settings &gt; Storage &amp; USB &gt; Explore to see if you can find/delete anything left by Sygic Navigation.

You can also try rebooting the tablet into safe mode by pressing and holding the power button until the dialog box with Power off appears. Then, press and hold the on-screen "Power off" button until it prompts you about rebooting into Safe mode. See if your battery is okay in safe mode (test it for about a day). Note that in safe mode, you can only use the core apps that the tablet came with and no third party apps. To exit safe mode, just turn off and turn back on the tablet.

Hope this helps.