Headset Bluetooth Battery
Below are copied from earlier posts in Google+
I am sure you are aware of the capability of iOS to read the battery level of Headset.
Is there away to get the value of the headset battery.
One of my friends is always laugh at me because his iPhone can do this while my note 3 doesn't. Please try.
I hope below link will help. I will keep searching and post whatever seems related.
http://stackoverflow.com/questions/16602224/how-to-get-bluetooth-headset-battery-status-in-android
https://developer.bluetooth.org/TechnologyOverview/Pages/BAS.aspx
https://together.jolla.com/question/94042/request-bluetooth-battery-status/
http://forum.choosemuse.com/forum/developer-forum/6242-how-to-display-battery-level-and-horseshoe-on-android-app
http://stackoverflow.com/questions/16602224/how-to-get-bluetooth-headset-battery-status-in-android
https://developer.bluetooth.org/TechnologyOverview/Pages/BAS.aspx
https://together.jolla.com/question/94042/request-bluetooth-battery-status/
http://forum.choosemuse.com/forum/developer-forum/6242-how-to-display-battery-level-and-horseshoe-on-android-app