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Replacing the Momentum 5 battery

Updated

The Momentum 5 have a battery that can be replaced. The compatible Sennheiser battery is BA 500. 

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 PH0 (not included).

Replacing the battery with a non-compatible battery can disable safety safeguards.

The use of non-compatible rechargeable third-party batteries can lead to reduced operating time or damage to the product. 

Only use rechargeable spare batteries supplied or recommended by Sonova Consumer Hearing. We recommend using original Sennheiser batteries.

When using batteries from third-party providers, ensure that they comply with all technical specifications and applicable local regulations.

Charging blocks that support both 5V and 9V+ output should not be used, as overvoltage chargers may damage the product.

Video Guide
Step-by-step Guide
Removing the rechargeable battery 
  1. Remove the ear pad from the left ear cup to protect it from damage.
  2. Remove the four Philips head screws from the left ear cup with the screwdriver.
  3. Open the left ear cup by pulling the acoustic unit upwards.

Attention! Risk of damage to the speaker cable. Do not pull the acoustic unit off too far and move it carefully.

 

  1. Disconnect the battery cable plug from the main circuit board.
  2. Remove the rechargeable battery from the battery holder.
Inserting the new rechargeable battery
  1. Place the rechargeable battery into the holder: 
    1. Ensure that the battery is correctly aligned. 
    2. The printed arrows must point upwards, towards the headband.
  2. Carefully snap the battery into the edges of the holder. 
  3. Connect the battery cable plug to the main circuit board.
  4. Close the ear cup by putting on the acoustic unit. Attach the acoustic unit by tightening the four Philips head screws.
  5. Reattach the ear pad back onto the ear cup

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