#!/bin/bash
# repetition is key in here

echo 60 | sudo tee -a /sys/class/power_supply/BAT0/charge_control_end_threshold &>/dev/null
echo 40 | sudo tee -a /sys/class/power_supply/BAT0/charge_control_start_threshold &>/dev/null

echo 60 | sudo tee -a /sys/class/power_supply/BAT0/charge_control_end_threshold &>/dev/null
echo 40 | sudo tee -a /sys/class/power_supply/BAT0/charge_control_start_threshold &>/dev/null

echo 60 | sudo tee -a /sys/class/power_supply/BAT0/charge_control_end_threshold >/dev/null
echo 40 | sudo tee -a /sys/class/power_supply/BAT0/charge_control_start_threshold >/dev/null