The battery in the Sennheiser DW Pro 1 headset is located in the side of the headband that does not have the microphone boom.
- Using your fingernail, remove the BATTERY cover from the headband
- Gently disconnect the white coupling at the end of the BATTERY wires to remove BATTERY from the headset
- Connect the new BATTERY to the female coupling on the headset
- Secure the BATTERY door in place once again and allow the headset to charge for 1 hour
Diagram pictured is located on page 33 of the User Manual
Time for a new headset?
Many Sennheiser DW Pro users have switched to the Leither LH270!