Last week recived October security patch, I've noticed that the battery drains quicker

[FERNEEX]

Ive found my battery seems to be draining quicker, I've optermized, my phone I've deleted apps that where not needed, and still the battery seems to drain quicker, if any one else as a had this problem and knows a fix please let us know

Pf

[BandOfBrothers]

Another avenue could be to...

1. Put the phone in Safe Mode which will turn off all the downloaded apps and leaves the stock ones alone which can then help you troubleshoot if its still a rogue app. Check your inbuilt battery stats. 

2. Clear the phones system cache by turning off the phone and then via a set series of button pressess that takes you into the phones file system and clear the system cache. 

3. Back Up and Factory Reset. 

4. Have a Samsung Experience Store or Samsung Service Centre location can a diagnostic on the phone. 

[FERNEEX]

I did all those things except the 4th suggestion, I'll try that next, thank you for your help I'll post if there is a problem and they can give me an answer