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Steam Deck - Ultra Battery

What you need

  1. Steam Deck - Ultra Battery, Prepare your Steam Deck for disassembly: step 1, image 1 of 3 Steam Deck - Ultra Battery, Prepare your Steam Deck for disassembly: step 1, image 2 of 3 Steam Deck - Ultra Battery, Prepare your Steam Deck for disassembly: step 1, image 3 of 3

    • Turn on your Steam Deck and allow the battery to discharge below 25% before starting your repairs, as a charged lithium-ion polymer battery can be dangerous if accidentally punctured.

    • As an extra precaution, Valve recommends putting your Steam Deck into battery storage mode within the BIOS before starting any internal repairs. Read how to do that here.

    • Power down your Steam Deck and unplug any cables.

    • If you have a microSD card installed, make sure to remove it before opening the Steam Deck. If you attempt to remove the back cover with it still installed, it could snap right in half.

    • During your repair, it can be helpful at times to lay the Steam Deck face-down into its case to protect the thumbsticks and prevent wobble.

    Edit

  2. Steam Deck - Ultra Battery, Remove the back cover screws: step 2, image 1 of 1
    Tool used on this step:
    FixMat
    $36.95
    Buy

    • Use a Phillips driver to remove the eight screws securing the back cover:

    • Four coarse thread 9.5 mm-long screws

    • Four fine thread 5.8 mm-long screws

    • Despite the standards, Phillips screwdrivers can vary in size and shape—two drivers labeled as the same size may fit differently in the same screw. Use the size that fits the snuggest into the screw head.

    • Throughout this repair, keep track of each screw and make sure it goes back exactly where it came from to avoid damaging your Steam Deck.

    Edit

  3. Steam Deck - Ultra Battery, Unclip the back cover: step 3, image 1 of 2 Steam Deck - Ultra Battery, Unclip the back cover: step 3, image 2 of 2

    • Insert an opening pick into the thin gap between the back cover and the front shell, along the edge of the right grip.

    • If you're having trouble inserting your pick at the grip seam, try starting at either the top or bottom long edges first, then slide the pick towards the grip.

    • Pry up on the back cover to release it from the locking clips.

    Edit

  4. Steam Deck - Ultra Battery, Remove the back cover: step 4, image 1 of 3 Steam Deck - Ultra Battery, Remove the back cover: step 4, image 2 of 3 Steam Deck - Ultra Battery, Remove the back cover: step 4, image 3 of 3

    • Once the clips are disconnected from one edge, the rest disconnect easily.

    • Grip the back cover at the opening you just created and pull it up and away from the device to unclip the long edges.

    • Remove the back cover.

    Edit

  5. Steam Deck - Ultra Battery, Uncover the hidden shield screw: step 5, image 1 of 2 Steam Deck - Ultra Battery, Uncover the hidden shield screw: step 5, image 2 of 2
    Tool used on this step:
    Tweezers
    $4.99
    Buy

    • If you have a refreshed Steam Deck version with the black motherboard cover, skip this step.

    • Use a pair of tweezers to remove the piece of foil tape covering the hidden screw on the board shield.

    • If possible, try not to rip or tear this tape so it can be reused. If necessary, you can fashion a replacement by cutting a piece of aluminum foil tape to fit.

    Edit

  6. Steam Deck - Ultra Battery, Remove the shield screws: step 6, image 1 of 2 Steam Deck - Ultra Battery, Remove the shield screws: step 6, image 2 of 2

    • Use a Phillips driver to remove the three screws securing the board shield:

    • One 3.4 mm screw

    • Two 3.7 mm screws

    • Only the two 3.7 mm screws along the left edge are present in refreshed Steam Decks.

    Edit

  7. Steam Deck - Ultra Battery, Remove the shield: step 7, image 1 of 3 Steam Deck - Ultra Battery, Remove the shield: step 7, image 2 of 3 Steam Deck - Ultra Battery, Remove the shield: step 7, image 3 of 3

    • Remove the board shield.

    • Depending on the age of your Steam Deck, this shield may stick to the thermal pads underneath.

    • During reassembly, ensure that the fan cable lays on the side of the board shield and isn't pinched underneath.

    Edit

  8. Steam Deck - Ultra Battery, Disconnect the battery: step 8, image 1 of 3 Steam Deck - Ultra Battery, Disconnect the battery: step 8, image 2 of 3 Steam Deck - Ultra Battery, Disconnect the battery: step 8, image 3 of 3

    • Grip the battery cable by its pull tab and pull it directly away from the motherboard to disconnect it.

    • Alternatively, use the flat end of a spudger or a clean fingernail to gently push the connector out of its socket, then disconnect it completely by hand.

    Edit

  9. Steam Deck - Ultra Battery, Remove the SSD screw: step 9, image 1 of 1

    • Use a Phillips driver to remove the 3.4 mm screw securing the SSD.

    Edit

  10. Steam Deck - Ultra Battery, Remove the SSD: step 10, image 1 of 2 Steam Deck - Ultra Battery, Remove the SSD: step 10, image 2 of 2

    • With the SSD screw removed, the SSD will pop up at a shallow angle.

    • Grip the end of the SSD and pull it away from its M.2 board connector to remove it.

    • During reassembly, insert the SSD at a shallow angle into its board connector, and secure it back into its horizontal position with the SSD screw.

    Edit

  11. Steam Deck - Ultra Battery, Remove the SSD shielding: step 11, image 1 of 3 Steam Deck - Ultra Battery, Remove the SSD shielding: step 11, image 2 of 3 Steam Deck - Ultra Battery, Remove the SSD shielding: step 11, image 3 of 3

    • The SSD is wrapped in ESD shielding that will need to be transferred to the replacement SSD. Alternatively, replacement shielding can be found here.

    • Slide the shielding off of the SSD.

    • If the shielding feels stuck, use a pair of tweezers to peel off and remove it instead. Take care to keep it in the best condition possible if you want to reuse it.

    • Only the SSD remains.

    • The Steam Deck uses a single-sided M.2 2230.

    • To recover, repair, or re-image your SSD, follow Valve's Steam Deck recovery instructions.

    • Note: The Steam Deck's buttons, thumbsticks, and touchpads may not register inputs at first after re-imaging the SSD. Use the touchscreen to follow initial SteamOS setup, allowing the device to download updates. Functionality should return once the Steam Deck restarts.

    Edit

  13. Steam Deck - Ultra Battery, Boot into the BIOS: step 12, image 1 of 1

    • Power down your Steam Deck.

    • Once off, hold down the volume up (+) button and press the power button.

    • Release both buttons.

    • The Steam Deck should power up, booting into the BIOS menu.

    Edit

  14. Steam Deck - Ultra Battery, Enable battery storage mode: step 13, image 1 of 3 Steam Deck - Ultra Battery, Enable battery storage mode: step 13, image 2 of 3 Steam Deck - Ultra Battery, Enable battery storage mode: step 13, image 3 of 3

    • Within the BIOS, use the D-Pad to navigate and the A button to select.

    • Navigate to Setup Utility.

    • Navigate to the Power menu.

    • Select Battery storage mode.

    • Select Yes to confirm.

    • Your Steam Deck should now power down into storage mode.

    • When in storage mode, your Steam Deck won't respond to power button presses. To exit storage mode, plug your Steam Deck into the charger.

    Edit

  15. Steam Deck - Ultra Battery, Uncover the hidden shield screw: step 14, image 1 of 2 Steam Deck - Ultra Battery, Uncover the hidden shield screw: step 14, image 2 of 2
    Tool used on this step:
    Tweezers
    $4.99
    Buy

    • If you have a refreshed Steam Deck version with the black motherboard cover, skip this step.

    • Use a pair of tweezers to remove the piece of foil tape covering the hidden screw on the board shield.

    • If possible, try not to rip or tear this tape so it can be reused. If necessary, you can fashion a replacement by cutting a piece of aluminum foil tape to fit.

    Edit

  16. Steam Deck - Ultra Battery, Remove the shield screws: step 15, image 1 of 2 Steam Deck - Ultra Battery, Remove the shield screws: step 15, image 2 of 2

    • Use a Phillips driver to remove the three screws securing the board shield:

    • One 3.4 mm screw

    • Two 3.7 mm screws

    • Only the two 3.7 mm screws along the left edge are present in refreshed Steam Decks.

    Edit

  17. Steam Deck - Ultra Battery, Remove the shield: step 16, image 1 of 3 Steam Deck - Ultra Battery, Remove the shield: step 16, image 2 of 3 Steam Deck - Ultra Battery, Remove the shield: step 16, image 3 of 3

    • Remove the board shield.

    • Depending on the age of your Steam Deck, this shield may stick to the thermal pads underneath.

    • During reassembly, ensure that the fan cable lays on the side of the board shield and isn't pinched underneath.

    Edit

  18. Steam Deck - Ultra Battery, Disconnect the battery: step 17, image 1 of 3 Steam Deck - Ultra Battery, Disconnect the battery: step 17, image 2 of 3 Steam Deck - Ultra Battery, Disconnect the battery: step 17, image 3 of 3

    • Grip the battery cable by its pull tab and pull it directly away from the motherboard to disconnect it.

    • Alternatively, use the flat end of a spudger or a clean fingernail to gently push the connector out of its socket, then disconnect it completely by hand.

    Edit

  19. Steam Deck - Ultra Battery, Unclip the right trigger: step 18, image 1 of 2 Steam Deck - Ultra Battery, Unclip the right trigger: step 18, image 2 of 2

    • The right trigger will be on your left-hand side when working on the Steam Deck, as it's laying upside down.

    • The Steam Deck's triggers clip into place on two pegs on the trigger bracket, which doubles as the hinge.

    • Place the flat end of a spudger onto the inside edge of the trigger's right clip.

    • Pivot the trigger clip out, away, and up from the peg to unlatch it.

    • During reassembly, latch the outermost peg first. Once in place, push down on the trigger to latch the innermost peg, producing an audible "click" sound.

    • Check to make sure that the trigger spring is properly aligned. Test the trigger action before continuing reassembly.

    Edit

  20. Steam Deck - Ultra Battery, Remove the right trigger: step 19, image 1 of 2 Steam Deck - Ultra Battery, Remove the right trigger: step 19, image 2 of 2

    • Remove the right trigger.

    • Take care to not lose the trigger spring. It press-fits onto a peg on the trigger's underside.

    Edit

  21. Steam Deck - Ultra Battery, Remove the trigger bracket screws: step 20, image 1 of 1

    • Use a Phillips driver to remove the three 5.2 mm screws securing the right trigger bracket.

    Edit

  22. Steam Deck - Ultra Battery, Remove the trigger bracket: step 21, image 1 of 1

    • Remove the right trigger bracket.

    • Replacement triggers require calibration to work as expected. To calibrate new triggers, follow this calibration guide.

    Edit

  23. Steam Deck - Ultra Battery, Disconnect the right thumbstick: step 22, image 1 of 3 Steam Deck - Ultra Battery, Disconnect the right thumbstick: step 22, image 2 of 3 Steam Deck - Ultra Battery, Disconnect the right thumbstick: step 22, image 3 of 3
    Tool used on this step:
    Tweezers
    $4.99
    Buy

    • Use the pointed end of a spudger to lift up the small locking flap on the thumbstick cable's ZIF connector.

    • Use a pair of tweezers to slide the cable out of its connector.

    • Grip the cable by the blue pull tab, not by the cable itself.

    Edit

  24. Steam Deck - Ultra Battery, Remove the thumbstick screws: step 23, image 1 of 2 Steam Deck - Ultra Battery, Remove the thumbstick screws: step 23, image 2 of 2

    • Use a Phillips driver to remove the three 5.2 mm screws securing the thumbstick.

    • During reassembly, you may need to hold the Steam Deck off of the work surface so it isn't resting on the new thumbstick while you tighten down the screws.

    Edit

  25. Steam Deck - Ultra Battery, Remove the right thumbstick: step 24, image 1 of 2 Steam Deck - Ultra Battery, Remove the right thumbstick: step 24, image 2 of 2

    • Remove the right thumbstick.

    Edit

  26. Steam Deck - Ultra Battery, Disconnect the button board cable: step 25, image 1 of 3 Steam Deck - Ultra Battery, Disconnect the button board cable: step 25, image 2 of 3 Steam Deck - Ultra Battery, Disconnect the button board cable: step 25, image 3 of 3

    • Use the pointed end of a spudger to lift up the small locking flap on the button board cable's ZIF connector.

    • Use a pair of tweezers to slide the cable out of its connector.

    • Grip the cable by the blue pull tab, not by the cable itself.

    Edit

  27. Steam Deck - Ultra Battery, Disconnect the interconnect cable: step 26, image 1 of 3 Steam Deck - Ultra Battery, Disconnect the interconnect cable: step 26, image 2 of 3 Steam Deck - Ultra Battery, Disconnect the interconnect cable: step 26, image 3 of 3

    • Use the pointed end of a spudger to lift up the small locking flap on the button board interconnect cable's ZIF connector.

    • Use a pair of tweezers to slide the cable out of its connector.

    • Grip the cable by the blue pull tab, not by the cable itself.

    Edit

  28. Steam Deck - Ultra Battery, Disconnect the remaining button board cables: step 27, image 1 of 3 Steam Deck - Ultra Battery, Disconnect the remaining button board cables: step 27, image 2 of 3 Steam Deck - Ultra Battery, Disconnect the remaining button board cables: step 27, image 3 of 3

    • If any connectors are covered with tape, use a pair of tweezers to remove it.

    • Use the pointed end of a spudger to lift up the small locking flaps on the rest of the button board ZIF connectors. Use a pair of tweezers to slide the cables out of their connectors:

    • Disconnect the action buttons cable.

    • Disconnect the touchpad board cable.

    • Disconnect the touchpad cable.

    Edit

  29. Steam Deck - Ultra Battery, Disconnect the right haptics: step 28, image 1 of 3 Steam Deck - Ultra Battery, Disconnect the right haptics: step 28, image 2 of 3 Steam Deck - Ultra Battery, Disconnect the right haptics: step 28, image 3 of 3

    • Exercise caution when lifting this connector—pry up on the connector itself, not its housing.

    • Use the pointed end of a spudger to lift up on the haptics cable to disconnect it.

    • Alternatively, you can leave the haptics connected to the button board and flip the board up and over the edge of the shell and out of the way.

    Edit

  30. Steam Deck - Ultra Battery, Remove the button board screws: step 29, image 1 of 1

    • Use a Phillips driver to disconnect the four screws securing the right button board:

    • Three 5.2 mm screws

    • One 3.9 mm screw

    Edit

  31. Steam Deck - Ultra Battery, Remove the button board: step 30, image 1 of 2 Steam Deck - Ultra Battery, Remove the button board: step 30, image 2 of 2

    • Remove the right button board.

    • Keep track of the quick access button and its membrane, as once the right button board is removed, they're no longer secured in place.

    Edit

  32. Steam Deck - Ultra Battery, Remove the bumper screws: step 31, image 1 of 1

    • Use a Phillips driver to remove the two 5.2 mm screws securing the right bumper assembly.

    Edit

  33. Steam Deck - Ultra Battery, Remove the right bumper assembly: step 32, image 1 of 2 Steam Deck - Ultra Battery, Remove the right bumper assembly: step 32, image 2 of 2

    • Remove the right bumper assembly.

    Edit

  34. Steam Deck - Ultra Battery, Remove the bumper button: step 33, image 1 of 3 Steam Deck - Ultra Battery, Remove the bumper button: step 33, image 2 of 3 Steam Deck - Ultra Battery, Remove the bumper button: step 33, image 3 of 3

    • The bumper button clips into its bracket with plastic tabs.

    • Lift the button up and away from the bracket to unclip the topmost plastic tab.

    • Disconnect the rest of the plastic tabs to remove the button.

    • Take care to not lose the button spring.

    • During reassembly, hook the button in at the spring end first, then pull the topmost clip up and over into position on the bracket.

    Edit
Conclusion

To reassemble your device, follow these instructions in reverse order.

One other person completed this guide.

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with 1 other contributor

Global Citizens

Member since: 08/30/25

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2 Guide Comments

I'm sorry, what is this meant to be?

The title is "Ultra battery", but you don't even touch it after disconnecting it.

Also, WHY DO YOU REMOVE THE BACK COVER TWICE AND DISCONNECT THE BATTERY TWICE AS WELL?!

This literally combines the SSD replacement, battery storage mode and right bumper into one tutorial.

I thought this would be a mod to, well, REPLACE THE BATTERY TO HIGHER CAPACITY VARIANT.

Marciko - Reply Share

Thank you, you helped me to save a lot of precious time

LordTimi - Share

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