Battery Test in Linux & MacOS

 

1 - Boot into OS and remove hibernation, screen saver or any battery saving setup

2 - Download the file at:
LINUX: https://github.com/daroan/helpdesk/blob/main/battery_linux.sh

3 - Open the terminal

 4 - Go to same folder where the file downloaded was save

5 - Run the file with: sh FILE

5 - Leave the command run until the computer turn off by itself at end of battery

6 - Turn on the computer and get the text file generate from the script above

If does not work you may need to give permissions on the file, if so use the following commands inside same folder:
sudo chown root:root FILE
sudo chmod 4775 FILE