Bazzite OS on ROG Ally: How to Install and Why Battery Life Doubles
Bazzite is a Linux gaming OS built on Fedora that turns the ROG Ally into a significantly better handheld. On Windows, the Ally gets around 1.5 hours of battery under gaming load. On Bazzite, the same device running the same games reaches 2.8 hours. No hardware changes, just a smarter OS.
Here is how to install it.
What Bazzite Is
Bazzite is a community-built Linux OS designed specifically for gaming handhelds and home theater PCs. It includes a Steam-like gaming interface powered by Steam itself, Proton compatibility for Windows games, and power management tuned for handheld hardware. Think of it as SteamOS but available on any device, including the ROG Ally.
What You Need
- A USB drive (16GB minimum) — or a microSD card with a USB-C adapter
- A USB-C hub or dock with a USB-A port to plug the drive into the Ally
- A second computer to create the installer
- About 45 to 60 minutes
Get a fast microSD for the OS install on Amazon
Step 1: Download Bazzite
On your second computer, go to bazzite.gg and download the Bazzite Ally image. Choose the version labeled for the ROG Ally specifically — it includes the right drivers and controller mappings pre-installed. The file is around 4 to 5GB.
Step 2: Flash to USB Drive
Download Balena Etcher (free, available for Windows and Mac). Open Etcher, select the Bazzite image, select your USB drive, and click Flash. This takes about 10 to 15 minutes.
Step 3: Boot the ROG Ally from USB
Power off the Ally. Plug your USB hub into the Ally’s USB-C port and insert the flashed USB drive. Hold the Volume Down button and press the Power button. The boot menu appears. Select your USB drive.
Bazzite’s installer loads. Follow the on-screen prompts to install it to the Ally’s internal storage. The process takes about 15 to 20 minutes.
Step 4: First Boot and Setup
After installation, remove the USB drive and reboot. Bazzite boots into a Steam-like gaming interface. Log into your Steam account. Your library syncs automatically. Proton handles compatibility for Windows games the same way the Steam Deck does.
The Ally’s controller inputs, gyroscope, and back buttons all work out of the box with the Ally-specific Bazzite image.
Battery Life Results
On Windows, the ROG Ally at performance settings drains its 40Wh battery in 1.5 to 2 hours on demanding games. On Bazzite with the same games and equivalent settings, the same battery lasts 2.5 to 3 hours. The power management improvements come from Linux’s efficiency at lower TDP settings and the removal of Windows background processes.
For lighter games, the gap widens further. Turn-based or indie titles on Bazzite can stretch to 4 to 5 hours on the Ally’s battery.
What You Lose Going to Bazzite
Windows compatibility. Games that rely on Windows-only software outside of Steam — specific launchers, anti-cheat, or productivity tools — will not work. Bazzite covers the Steam library and most PC games through Proton, but it is not Windows. If you rely on specific Windows-only software, keep a Windows partition or stick with Windows.
Can You Dual Boot
Yes. The Bazzite installer gives you the option to dual boot alongside Windows. You keep Windows for anything that requires it and boot into Bazzite for gaming. The boot menu appears each time you power on.
Also see: Is the ROG Ally Worth It? for the full verdict on the device itself.