Check hardware battery pct in macOS

batpc.sh

#!/bin/bash

current_capacity=$(ioreg -l | grep -o '"CurrentCapacity" = [0-9]*' | awk '{print $3}')
max_capacity=$(ioreg -l | grep -o '"MaxCapacity" = [0-9]*' | awk '{print $3}')
design_capacity=$(ioreg -l | grep -o '"DesignCapacity" = [0-9]*' | awk '{print $3}')

if [[ -n "$current_capacity" && -n "$max_capacity" && "$max_capacity" -ne 0 && -n "$design_capacity" && "$design_capacity" -ne 0 ]]
then
    percentage=$(echo "scale=2; ($current_capacity / $max_capacity) * 100" | bc)
    echo "Battery charge: $percentage%"

    percentage=$(echo "scale=2; ($max_capacity / $design_capacity) * 100" | bc)
    echo "Battery health: $percentage%"
else
    echo "Error: Could not extract battery data."
    exit 1
fi

https://apphousekitchen.com/feature-explanation-hardware-battery-percentage/