I found a program for windows 7-10 that displays your bluetooth devices battery percentage! : r/Windows10
How to Show the Battery Percentage in Windows 10
Win10 Widgets brings the power of Widgets on Windows 10
Win10 Widgets lets you keep tabs on your hard drive, CPU and more from your desktop | Windows Central
Miss the Weather Widget in Windows 11? It's Coming Back | PCMag
battery Archives - Free Desktop Gadgets For Windows 10, Windows 8, Windows 7 and Vista
Download Bluetooth Battery Monitor 2.15.2.1
Win10 Widgets - Widgets for Windows 10
Battery Widget for PC / Mac / Windows 7.8.10 - Free Download - Napkforpc.com
Battery Meter Windows 10 Gadget - Win10Gadgets
battery Archives - Free Desktop Gadgets For Windows 10, Windows 8, Windows 7 and Vista
GPU Meter 2.4 - Free Desktop Gadgets For Windows 10, Windows 8, Windows 7 and Vista
Windows 10's Xbox Game Bar adds a widget store and much-needed transparency controls
Battery & PowerPlan - Free Desktop Gadgets For Windows 10, Windows 8, Windows 7 and Vista
How to Show Remaining Battery Percentage on Windows 10 Taskbar
battery Archives - Free Desktop Gadgets For Windows 10, Windows 8, Windows 7 and Vista
Windows 11: Fresh New Look, but Is It Enough of an Upgrade? | NDTV Gadgets 360
Win10 Widgets brings the power of Widgets on Windows 10
NEW 9/28/2017 - Win10 Widgets 1.0.0 Program launches your desktop into the future with a collection of widgets like, … | Remote desktop protocol, Widget, Windows 10
Battery Meter 2 Windows 10 Gadget - Win10Gadgets
Battery Widget for PC / Mac / Windows 7.8.10 - Free Download - Napkforpc.com
67+ Rainmeter Battery Skins [Windows 10/8/7]
20 Best Desktop Gadgets and Widgets for Windows PC
Red Battery Gauge - Free Desktop Gadgets For Windows 10, Windows 8, Windows 7 and Vista
Battery Meter - Free Desktop Gadgets For Windows 10, Windows 8, Windows 7 and Vista
Download Battery Widget for PC Windows 10,8,7 - AppsForWindowsPC