Optimising Battery Life
Your laptop will come setup with all the following tweaks installed. The below is advised if you reinstall your operating system or change to another distribution.

We recommend using a combination of TLP and PowerTop to optimise battery life.
Configuring via PPA
You can easily install and configure our recommended battery tweaks via our PPA by running the below commands in your terminal.
sudo add-apt-repository ppa:starlabs/ppa
sudo apt update
sudo apt install starlabs-power
Manual Configuration
If you would like more control over this process, below are the individual steps to setup these tweaks
Install tlp and powertop
sudo apt install tlp power top -y
Configure powertop with the below command, this usually takes around 15 minutes to run and you will not be able to use your computer whilst it is running.
sudo powertop -c
Set powertop to start automatically every time you turn on your laptop
sudo sed -i -e '$i \sudo powertop -auto-tune\n' /etc/rc.local
Power usage
After the completing the above steps, you can use powertop to see your energy consumption by running the below command
sudo powertop
The most important information is in the top left, the consumption displayed in watts. You can work out your battery life from here:
8 watts energy consumption
36 watt hour battery
36 ÷ 8 = 4.5 hours battery life