Would you like to show battery percentage on top of your Nexus 5’s battery icon? Therefore, you can quickly identify the remaining battery level. Anyone can simply implement this on his or her phone. No root privilege or ROM modification is required for this. Here is how to enable it.
Installation is simple. Download the app apk (download link at the bottom of this post) and install it. Click on “Enable Battery Percent” option and reboot the phone.
Note: Even if you can uninstall the App, setting will remain as the app changes a system setting, so to remove the percentage display, just install the App again, uncheck the setting and uninstall it.