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Introduction

Follow this guide to replace a dead or worn-out battery in your Steam Controller (2nd Gen, 2026).

The lithium-ion battery in your Steam Controller has a limited lifespan. If your controller doesn't hold a charge, dies unexpectedly, or only works when plugged in, the battery may need to be replaced.

If your battery is swollen, take appropriate precautions.

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Étape 1 Before you begin

Steam Controller (2nd Gen, 2026) Battery Replacement, Before you begin: étape 1, image 1 de 3

Steam Controller (2nd Gen, 2026) Battery Replacement, Before you begin: étape 1, image 2 de 3

Steam Controller (2nd Gen, 2026) Battery Replacement, Before you begin: étape 1, image 3 de 3

Let your controller's battery drain below 25% before starting this repair.
Unplug all cables and accessories from the controller, including the Steam Controller Puck.
During your repair, it can be helpful to lay the Steam Controller on a clean, soft cloth for stabilization and to prevent scratches.

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Étape 2 Remove the back cover screws

Steam Controller (2nd Gen, 2026) Battery Replacement, Remove the back cover screws: étape 2, image 1 de 2

Steam Controller (2nd Gen, 2026) Battery Replacement, Remove the back cover screws: étape 2, image 2 de 2

Outil utilisé dans cette étape :

TR6 Torx Security Screwdriver

$5.99

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Use a T6 Torx screwdriver to remove the seven screws securing the back cover.
To reach some of the screws you'll need a skinny, long-shank screwdriver.
Throughout this repair, keep track of each screw and make sure it goes back exactly where it came from.

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Étape 3 Remove the back cover

Steam Controller (2nd Gen, 2026) Battery Replacement, Remove the back cover: étape 3, image 1 de 2

Steam Controller (2nd Gen, 2026) Battery Replacement, Remove the back cover: étape 3, image 2 de 2

Remove the back cover.

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Étape 4 Remove the battery

Steam Controller (2nd Gen, 2026) Battery Replacement, Remove the battery: étape 4, image 1 de 3

Steam Controller (2nd Gen, 2026) Battery Replacement, Remove the battery: étape 4, image 2 de 3

Steam Controller (2nd Gen, 2026) Battery Replacement, Remove the battery: étape 4, image 3 de 3

If your battery is swollen, take appropriate precautions. Never reinstall a swollen battery—replace it with a new one.
Lift the right edge of the battery to remove it.
During reassembly, first slide the left side of the battery into place so its connector is fully seated. Then, press the right side into place to secure it.