Turn off "Low Battery" notification sound.
 

Se every time the battery runs low, the phone plays a sound to alert me. Not only is it annoying, it also wastes more battery.

Is there a way to disable that specific sound notification?

There seems to be nothing relevant in the Sounds and Notifications settings.

Re: Turn off "Low Battery" notification sound.
 

You would have to disable this in the registry. Use a reg editor like PHM Regeditor and use the search/find function and search strings and values for LowBatt and you should find it. Change the value to 0 to turn it off. :)