Hello Cameron,
Thank you so much for posting in Microsoft Community.
I appreciate you raising this concern to us. The advertised battery life of "up to" 16 hours is based on specific test conditions and usage patterns. Actual battery life may vary based on usage, settings, and other factors. A battery life of 6 hours with regular use is within the expected range for the Surface Pro 9.
It is possible that the battery life of your Surface Pro 9 is lower than expected due to the way you use it. For instance, if you keep the screen at high brightness while watching videos and browsing the web, the battery life will be impacted.
If you are concerned about the battery life of your device, you can try adjusting the settings to optimize battery life. For example, you can lower the screen brightness, turn off Bluetooth, and close any unnecessary apps running in the background.
You may check this link to know more in Caring for your Surface battery - Microsoft Support
However, if you feel that your battery life is significantly lower than what you expected, you can contact Microsoft live support for further assistance. It's always a good idea to keep an eye on your battery life and monitor any changes over time. To reach them, see steps below:
- Go to Contact Us - Microsoft Support
- Choose how you would like to get support for your Surface device.3. Type in the problem you need help with.4. Look at any available solutions offered and select Contact Support.Here is a link you can check to know a detailed guide in reaching our live support: How to get Phone and Chat Support (for Surface Home/Consumer - Microsoft Community I wish you all the best and hope it helps! Regards,Rolando S.