Also when I did “echo 45 > /sys/class/power_supply/BAT0/charge_start_threshold” in sudo, it said "bash: /sys/class/power_supply/BAT0/charge_start_threshold: Permission denied "

Hi, thanks for replying ! when I ran, " cat /sys/class/power_supply/BAT0/charge_start_threshold" it turned “cat: /sys/class/power_supply/BAT0/charge_start_threshold: No such file or directory”

I am currently using a Lenovo Ideapad Flex 5 with a 10th gen intel i5. I like the keyboard and the speakers a lot more than any laptop I ever had, but the battery life is not the greatest, but that is not surprising as it has an intel chip, and the fans are really loud which bothers me a lot. I am not really interested in Lenovo’s latest tech, but I do like their older Thinkpad models with the removable external batteries.

Hello ! A community profile picture would be a good starter.