The Momentum True Wireless 5 Earbuds have a battery that can be replaced. The compatible Sennheiser battery is BA 501, a set of 2.
Here, we’ll guide you through each step. Watch our video instructions or follow the step-by-step guide. Your product box will also have the printed manual included.
You will require a Phillips screwdriver PH000 (not included in delivery), and our special tool for opening the earbuds (included in delivery).
Video Guide
Step-by-Step Guide
Removing the battery
Loosen the two captive Phillips head screws from the bottom of the earbud. The captive screws are not removable.
Attention! Risk of damage to the earbud’s housing or the flexible printed circuits. Do not use sharp or pointed objects to open the housing.
Open the housing carefully. Only touch and move the parts that are required for the battery replacement. Risk of damage to the speaker cable. Do not pull the housing halves too far apart.
To open the housing of the earbud, place the supplied special tool on the slotted recess (a) and twist it very slightly (b). Lever the two halves of the housing apart.
Remove the rechargeable battery by taking it out of the battery holder.
Inserting the new battery
Place the rechargeable battery into the battery holder. Pay attention to the polarity.
Attention! Risk of damage to the earbud’s flexible printed circuits or the speaker cable. Close the housing carefully. Do not touch any sensitive electronic parts. Do not pinch the speaker cable between the housing halves.
Close the housing of the earbud: - Carefully and loosely place the two halves of the housing on top of each other so that they are well aligned. - Make sure that you do not pinch the speaker cable between the housing halves. - Press the two halves of the housing together until they click into place with an audible click sound.
Attach the housing halves by tightening the two Philips head screws.
Testing your earbuds with the new battery
To test the function of the earbud with the new rechargeable battery:
Insert the earbud into the charging case, but do not close the lid.
Take the earbud out of the charging case.
Check whether the Bluetooth connection and audio playback are working.
Repeat this test another two times.
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