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My battery drains faster than it should. Lasts only 14 hours after fully charged. If anyone knows please help. Go to Solution. Turned out McAfee antivirus is draining battery. I tuned off and my battery lasts for 22 hrs now. View solution in original post. So what I did is just backed up my data and factory reset my phone, and after taht everything is back to normal--my phone is back to life again with same battery history usage as usual
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The Droid Guy. In fact, most cases of battery draining occur after installing an update, and therefore attributed to software errors. This also denotes that the problem is rectifiable by some workarounds thus can be remedied at home. Feel free to the following walkthroughs, if you need more help. Apps can become rogue after implementing new system changes and the first apps to act up would be those background apps. To clear this out, end all background apps on your Galaxy Note 9 with these steps:. Wait until all apps are finished updating and then restart your phone to apply the new changes. Errant apps can also be determined by how much power or amount of battery they have consumed in a certain period of time.