Battery discharges too quickly

Dec 27, 2019 10:02AM PST

My phone has recently started acting weired for the last few days.

After charging the phone to 100% its says it will last 47 hours but it only lasts for 10 hours.
At bed time when i turn it to airplane mode and not use it all night, in the morning i find theres only 3% battery left. When i charge it, it now takes 5 hours to even reach 58%.

I cant understand what is wrong with it. I even used battery doctor and antivirus to check if theres something going on and uninstalled all apps in case something is eating away the battery.

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So far there is no virus for Android. Just malware.
Dec 27, 2019 10:31AM PST

And the more apps you install the more likely these added apps will use battery power.

You didn't reveal how old the phone is but at over a year you do see battery runtime drop. And it keeps dropping. At some point you put in a new battery. Before that you factory reset the phone so it's just like new and see how many hours you get.

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go into battery setting
Dec 27, 2019 10:44AM PST

you can go into your battery setting and see what is using it. one thing you can try that might help is to wipe the cache partition. it is a general fix all. however since you did not provide the phones model, there is no way to give the steps.

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I found it to rarely help on the model.
Dec 27, 2019 11:00AM PST

Android changes so quickly that the manual is usually incorrect in just a few days or months. My wife hated on that for some time.

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Jan 14, 2020 4:44AM PST

The behavior you described is a bit weird due to the fact that the airplane mode is enabled throughout the night but the percentage still lowers down drastically. Seems that the cause can be elsewhere rather than the number of apps you have installed. Might it be that your phone is just old? If not, perhaps changing the battery to a new one would be the best option here

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Two work arounds.
Jan 14, 2020 5:32AM PST

1. Leave it connected to a charger during the night.
2. Turn it fully off during the night.

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