S8 Battery Draining Real Fast All Of a Sudden.

[Android Central Question]

Lately my Samsung Galaxy S8 battery is draining real fast, like REAL fast... Fully charged 2 hours ago, now I only have 77% left and I didn't even use it. The only thing I did today with it was sending 2 text messages. Been like this since I updated to the latest update. Does it have anything to do with the update or is something wrong with my phone?

 

[B. Diddy]

Welcome to Android Central! Does this persist after a reboot? Or a cache partition wipe? https://support.t-mobile.com/docs/DOC-34311. If so, then show us some battery stats. Charge up to 100%, then let it drain to 20-30% with normal usage, without charging in between. Then show us:

1. The main Settings>Battery screen.
2. The fullscreen battery graph screen (which shows Awake time and Cell Signal Strength).
3. The Screen category (to see total Screen On time).
4. The Cell Standby category, if present (to see Time Without Signal).


http://forums.androidcentral.com/ge...ide-how-post-screenshots-android-central.html
You might have to install a 3rd party battery monitor, like GSam Battery Monitor, to get the Cell Signal Strength graph.

 

[NafcMontana]

Welcome to Android Central! Does this persist after a reboot? Or a cache partition wipe? https://support.t-mobile.com/docs/DOC-34311. If so, then show us some battery stats. Charge up to 100%, then let it drain to 20-30% with normal usage, without charging in between. Then show us:

1. The main Settings>Battery screen.
2. The fullscreen battery graph screen (which shows Awake time and Cell Signal Strength).
3. The Screen category (to see total Screen On time).
4. The Cell Standby category, if present (to see Time Without Signal).


http://forums.androidcentral.com/ge...ide-how-post-screenshots-android-central.html
You might have to install a 3rd party battery monitor, like GSam Battery Monitor, to get the Cell Signal Strength graph.

Doing the cache partition wipe helped, now I can use my phone for a full day again, thanks!!