![How to get the battery out of this heart rate monitor? I can't even fit a paper between the battery and the case : r/howto How to get the battery out of this heart rate monitor? I can't even fit a paper between the battery and the case : r/howto](https://i.redd.it/psjfmzgdj2a91.jpg)
How to get the battery out of this heart rate monitor? I can't even fit a paper between the battery and the case : r/howto
![Amazon.com : POLAR H10 Heart Rate Monitor, Bluetooth HRM Chest Strap - iPhone & Android Compatible, Gray : Sports & Outdoors Amazon.com : POLAR H10 Heart Rate Monitor, Bluetooth HRM Chest Strap - iPhone & Android Compatible, Gray : Sports & Outdoors](https://m.media-amazon.com/images/I/71ljlPWUMoL._AC_UY1000_.jpg)
Amazon.com : POLAR H10 Heart Rate Monitor, Bluetooth HRM Chest Strap - iPhone & Android Compatible, Gray : Sports & Outdoors
![Amazon.com : POLAR H7 Bluetooth Heart Rate Sensor & Fitness Tracker (Black, Medium/XX-Large) : Heart Rate Monitors : Sports & Outdoors Amazon.com : POLAR H7 Bluetooth Heart Rate Sensor & Fitness Tracker (Black, Medium/XX-Large) : Heart Rate Monitors : Sports & Outdoors](https://m.media-amazon.com/images/I/31YT8hSpaiL._AC_SY350_.jpg)
Amazon.com : POLAR H7 Bluetooth Heart Rate Sensor & Fitness Tracker (Black, Medium/XX-Large) : Heart Rate Monitors : Sports & Outdoors
![Amazon.com: HQRP 4-Pack Lithium Battery Compatible with Polar FT40 FT40M H7 H10 Heart Rate Monitor FT4O FT-40 FT-40M : Electronics Amazon.com: HQRP 4-Pack Lithium Battery Compatible with Polar FT40 FT40M H7 H10 Heart Rate Monitor FT4O FT-40 FT-40M : Electronics](https://m.media-amazon.com/images/I/61J1mSa2iuL.jpg)