Battery drain within 3 to 4 hours

[UsmanCh784]

I have samsung galaxy note 20 ultra

My phone's battery drain very fast even without using and when battery percentage reached 30% then mobile is off and once i try to on it's already in zero.

Kindly suggest would be greatly appreciated your suggestion 

[Abdullahsamsung]

Check Battery health in diagnostic

[MalikDanish]

It's look like your phone bettery is not in good condition, you have to visit samsung center or any other mobile repairing shop to resolve your issue.

[Qamabb]

I'm using note 20 ultra, how can I get the full specification of my phone

[Qamabb]

Need cover for note 20ultra

[Shahzaib-Ali-hai]

Man, did you update it recently? Because the July update has lots of issue including battery drainage.
Try to hard reset it if possible. You can use a smart switch for backup to an external device. And must wipe the cache partition.

[ZeeshanRaja]

Battery is leaking current inside somewhere, battery need replacement. other possible cause could be charging jack is old or mishandled or have you ever got your phone repaired ?