[Steam Deck] Setting techniques to make your battery last longer! How to double uptime with TDP limits and FSR

Mobile gaming PCs “Steam Deck” and “ROG Ally”.
It’s the best device, but if you play heavy games, the battery runs out in an hour, which is a problem.
We will explain how to use “TDP Limit” and “FSR” to dramatically improve battery life without reducing image quality as much as possible.

1. Limit frame rate to “40fps” or “45fps”

You’ll want to output 60fps, but 40fps looks smooth enough on small mobile screens.
Please set the refresh rate and frame rate limit to “40” from the settings menu.
This alone will reduce the load on your GPU and extend your battery by 30 minutes to 1 hour.

2. Limit TDP (thermal design power)

Turn on “TDP Limit” in the performance settings.
For indie games (2D games), try lowering the power to 3W to 5W, and for heavy 3D games, try lowering the power to 10W to 12W.
The trick is to find the last line where the game won’t stutter.
The default (15W or more) wastes too much power.

3. Utilize FSR (super resolution technology)

Lower the in-game resolution from “1280×800 (native)” to “960×600” etc.
Then, turn on “FSR” in the SteamOS menu and set sharpness to “2-3”.
Then, the AI will clearly stretch and display the low-resolution video.
This is a magical feature that allows you to play while still looking beautiful while reducing the GPU load.

Summary

If you adjust the settings, Monster Hunter Wilds will run for more than 2 hours.
This is an essential technique for playing on the go.