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As your device ages, the battery life often severely degreades. Instead of throwing away your device, consider replacing the battery instead.
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Detach the Bluetooth module from the left earcup of the headphones.
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Turn off the Bluetooth module before proceeding.
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Remove the five screws on the module using a small tri-wing bit and a Phillips head bit.
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Using an opening tool, gently pry the cover from the sides and open the module.
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Gently lift the PCB to reveal the battery.
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The battery is secured with adhesive to the back of the module. Using the opening tool, gently pry off the battery.
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Carefully desolder the two battery wires from the PCB.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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UMass Dartmouth, Team 5-4, Biswokarma Spring 2025 crwdns2935289:0UMass Dartmouth, Team 5-4, Biswokarma Spring 2025crwdne2935289:0
UMASSD-BISWOKARMA-S25S5G4
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These headphones are great and really comfortable. I replaced my battery a few years ago with a battery that I bought on eBay with the same 3.7V 140mAH specs that came with the headphones originally. However, this replacement, like the original, has very limited battery life - only a handful of hours (perhaps 3-6). Sometimes surprises me with low battery warnings when I think it should have sufficient charge. Hence, I'm looking at another replacement. When I look on Amazon now (Oct 2025), I see batteries advertised that appear to be compatible but with much larger capacity (350mAH). Do the authors know if the larger batteries are indeed compatible? My model was initially marketed as the AE2w and then renamed AE Soundlink and feature the huge detachable bluetooth module seen in the above photos. My concern is that there might be another wireless model also called the AE2 that has the receiver within the ear cup and with more physical space for a larger battery than my model couldn't accommodate.
