![Amazon.com: Replacement Battery for LOGITECH Pure-Fi Anywhere Speaker 2nd MM50 Part NO LOGITECH NTA2335 : Electronics Amazon.com: Replacement Battery for LOGITECH Pure-Fi Anywhere Speaker 2nd MM50 Part NO LOGITECH NTA2335 : Electronics](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/71FKI-H8bjL.jpg)
Amazon.com: Replacement Battery for LOGITECH Pure-Fi Anywhere Speaker 2nd MM50 Part NO LOGITECH NTA2335 : Electronics
![Logitech MM50 speaker system: removing IR sensor. This sensor is always "on", draining the battery in less than a week. I lost the remote, so I have no need for the sensor. Logitech MM50 speaker system: removing IR sensor. This sensor is always "on", draining the battery in less than a week. I lost the remote, so I have no need for the sensor.](https://i.redd.it/nq94qz4551a41.jpg)
Logitech MM50 speaker system: removing IR sensor. This sensor is always "on", draining the battery in less than a week. I lost the remote, so I have no need for the sensor.
![Amazon.com: Replacement Battery for LOGITECH Pure-Fi Anywhere Speaker 2nd MM50 Part NO LOGITECH NTA2335 : Electronics Amazon.com: Replacement Battery for LOGITECH Pure-Fi Anywhere Speaker 2nd MM50 Part NO LOGITECH NTA2335 : Electronics](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/71tOGXZ-wmL.jpg)
Amazon.com: Replacement Battery for LOGITECH Pure-Fi Anywhere Speaker 2nd MM50 Part NO LOGITECH NTA2335 : Electronics
![Amazon.com: VINTRONS 3000mAh Replacement Battery for Logitech MM50, Pure-Fi Anywhere Speaker 1st : Electronics Amazon.com: VINTRONS 3000mAh Replacement Battery for Logitech MM50, Pure-Fi Anywhere Speaker 1st : Electronics](https://m.media-amazon.com/images/I/51XeqO05OnL.jpg)