battery life for note 20

[fstack]

i have a tough problem , when i enter the camera to take a pic/movie the system shows to me that im not have 

enoght energy and the battery about to die .

when i saw this notice in the last time i had 35% , any one know why this problem happens to me?

[fstack]

i found read about this problem un Google but i didnt find any solution , may it be  bug in my phone?

[Reynaud]

Hi, we suggest you to follow the steps suggested by RedDogRabbit, thank you RedDogRabbit.

[fstack]

any one know how if this inforamtion will help i've read thim on Google too:

To fix the battery drain and many other battery-related issues, you can try recalibrating the device battery. Here's how to recalibrate the battery on Galaxy Note 20 and Note 20 Ultra: Charge your device to 100% and leave it plugged in for two or more hours. Now, use it till it shuts down itself.

[RedDogRabbit]

You are probably better off to Boot into Recovery & Wipe Cache.

Opinions on "battery calibration" being legitimate, are mixed.

Have a look at the link below:

https://forums.androidcentral.com/samsung-galaxy-note-4/490666-if-battery-issue-delete-cache-fixed-m...

Also not sure about the link you posted. It took me to what you see in the screen shot?