The magic command is upower, a command that gives you detailed information about the power devices in your laptop/desktop.
Enumerate all the power devices
9% ❯ upower --enumerate
/org/freedesktop/UPower/devices/line_power_AC
/org/freedesktop/UPower/devices/battery_BAT0
/org/freedesktop/UPower/devices/DisplayDevice
Check the details of a power device (battery in this case)
❯ upower -i /org/freedesktop/UPower/devices/battery_BAT0
native-path: BAT0
vendor: Hewlett-Packard
model: Primary
serial: 28716 2021/11/27
power supply: yes
updated: Tue 16 Aug 2022 09:36:50 AM EEST (50 seconds ago)
has history: yes
has statistics: yes
battery
present: yes
rechargeable: yes
state: charging
warning-level: none
energy: 5.2896 Wh
energy-empty: 0 Wh
energy-full: 48.9858 Wh
energy-full-design: 48.9858 Wh
energy-rate: 23.6094 W
voltage: 11.942 V
time to full: 1.9 hours
percentage: 10%
capacity: 100%
technology: lithium-ion
icon-name: 'battery-caution-charging-symbolic'
History (charge):
1660631810 10.000 charging
History (rate):
1660631810 23.609 charging