Logitech G903 Battery Replacement
crwdns2944107:0crwdnd2944107:0Dominik Schnabelrauchcrwdnd2944107:0crwdnd2944107:0crwdnd2944107:03crwdnd2944107:0crwdne2944107:0
crwdns2944111:0Mha 5, 2025crwdne2944111:0
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crwdns2942287:0crwdne2942287:0Use this guide to replace the battery in a Logitech G903.
If your battery is swollen, take appropriate precautions. For your safety, discharge your battery below 25% before disassembling your device. This reduces the risk of a dangerous thermal event if the battery is accidentally damaged during the repair.
This guide requires removing the mouse feet. If you’re planning to reuse your existing mouse feet, note that the adhesive needs to be thoroughly heated for them to be cleanly removed.
You might need replacement adhesive to reattach components when reassembling the device.
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Before you begin, flip the mouse's power switch to the OFF position.
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Unplug all cables from the mouse.
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Heat an iOpener and lay it on the mouse feet for one minute to heat the adhesive.
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Slide the tip of an opening pick under an edge of the bottom mouse foot, making sure it goes under both the foot and its adhesive pad.
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Gently slide the pick farther under the foot and lift until you can grip it with your fingers.
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Use your fingers to peel up and remove the foot.
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Slide the flat end of a spudger under an edge of the adhesive. If the adhesive seems stuck, you may need to heat it further.
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Peel the adhesive off.
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If any of the feet got damaged during removal or separated from their adhesive pads, replace them.
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Use a spudger to carefully scrape up and remove any remaining adhesive bits.
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Use isopropyl alcohol and a microfiber cloth to thoroughly clean all adhesive residue from the foot recesses. Allow the surface to completely dry.
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Remove the feet from their backing and firmly press them into place.
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Repeat the process to remove the two pentagonal mouse feet on the left and right sides.
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Heat an iOpener and apply it to the Logitech sticker for one minute to soften its adhesive.
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Slide the tip of an opening pick under an edge of the Logitech sticker.
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Gently slide the pick farther under the sticker and lift until you can grip it with your fingers.
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Use your fingers to peel up and remove the sticker.
You don't need to fully remove this sticker, all you need to do is flip the thinnest part (like till you reach the part like in the photo above), put the screwdriver in, unscrew the screw, take the screw out and stick the sticker back on. Do the same with the other screw and during the assembly.
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Use a Phillips screwdriver to remove the seven 4.5 mm‑long screws securing the two halves of the mouse together.
You'll need a T5 bit to remove the seventh top screw.
It used to be that on the older models, but on the newer one I just opened it had a Philips for that last one too, just like the guide shows.
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Swing the top case towards the rear of the mouse to access the internals.
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Keep the top case lifted with one hand, or use something heavy to support it while you work.
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Use a spudger or clean fingernail to flip up the hinged locking flap on the interconnect cable ZIF connector.
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Use tweezers or your fingers to grip the interconnect cable by its pull tab and slide it out of the socket.
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Use a pair of tweezers to firmly grasp the sides of the battery connector.
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Pull the connector up and out of its socket, gently rocking it back and forth to loosen it.
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Remove the top half of the mouse.
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Heat an iOpener and apply it to the back of the mouse.
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Insert an opening pick in to the gap between the battery housing and the battery at the side opposite to the battery cable.
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Slide the opening pick under the battery and lift up to pry the battery off of its housing.
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Remove the battery.
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If possible, turn on your device and test your repair before installing new adhesive and resealing.
Secure the new battery with pre-cut adhesive or double-sided adhesive tape. In order to position it correctly, apply the new adhesive into the device at the places where the old adhesive was located, not directly onto the battery. Press the new battery firmly into place.
Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before installing.
For optimal performance, calibrate your newly installed battery: Charge it to 100% and keep charging it for at least 2 more hours. Then use your device until it shuts off due to low battery. Finally, charge it uninterrupted to 100%.
To reassemble your device, follow the above steps in reverse order.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Check out our Answers community for troubleshooting help.
If possible, turn on your device and test your repair before installing new adhesive and resealing.
Secure the new battery with pre-cut adhesive or double-sided adhesive tape. In order to position it correctly, apply the new adhesive into the device at the places where the old adhesive was located, not directly onto the battery. Press the new battery firmly into place.
Compare your new replacement part to the original part—you may need to transfer remaining components or remove adhesive backings from the new part before installing.
For optimal performance, calibrate your newly installed battery: Charge it to 100% and keep charging it for at least 2 more hours. Then use your device until it shuts off due to low battery. Finally, charge it uninterrupted to 100%.
To reassemble your device, follow the above steps in reverse order.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Check out our Answers community for troubleshooting help.
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This guide helped me on my G900's battery. Thank you!
G903: Easy peasy. Took longer to clean the glue residues up than to open, replace the battery and close it back up.
