A11 - Battery draining fast.

[Champagnedrinker]

My battery has started to drain very quickly - I'm guessing it was related to the latest update - which seems to have been on October 5th, as it used to be fine & could go a couple of weeks or more without charging. (It's mostly to use MS's Authenticator for work). 
Current settings: 

• 60hz for the screen. 
• Adaptive brightness 
• Screen off after 30 seconds
• Bluetooth off unless I need it. 
• Background usage limits - put unused apps to sleep - on. 

Battery status

• Health 100%
• Cycle count 16
• Manufacture date 18 September 2026
• First used 12 April 2026

I could reset to manufacturers settings, but before I do that, any other suggestions? 

[Robin621k]

How long is the battery lasting?
Less than a couple of weeks?

[Samsung_Moderator]

Hi @Champagnedrinker and welcome to the community! We understand how frustrating this can be and would be delighted to assist you!

To add onto @Robin621k's questions:

Have you done a reboot of the tablet? 

Does the battery drain when the tablet is in safe mode?

We look froward to hearing back from you!