Aviod undervoltage detected! warning in raspberry pi

Recipe:

- Insert the line: 'avoid_warnings=1' into /boot/config.txt 

$ sudo echo "avoid_warnings=1" >> /boot/config.txt

 

- Uninstall lxplug-ptbatt:

$ sudo apt remove lxplug-ptbatt

And reboot rpi:

$ sudo reboot

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P.S.: Changing usb wire solves the problem, very ofen!!,
more gauge, better !?.