Hey there, and welcome to Apple Support Communities allmet99,
We can certainly understand your concern and see you came to us from the article Charge your Beats Fit Pro.
To answer your question, you will need to use the USB-C cable that's included with your Beats Fit Pro. Check out these steps on how to charge your device.
" Charge your Beats Fit Pro
Your earbuds each provide up to six hours of playback with Active Noise Cancellation turned on, and up to seven hours of playback with Active Noise Cancellation turned off.1 With the charging case, you can get up to 24 hours of playback.2 And with Fast Fuel, you can get up to one hour of playback after you charge for five minutes.3 To keep your Beats Fit Pro charged, put them in the charging case when you're not using them.
When the charging case is less than 40% charged, the LED on the front turns red. If the LED blinks red, you might need to reset your earphones.
When you need to charge both the earbuds and the charging case:
- Place the earbuds in the charging case.
- Connect the charging case to a power source with the USB-C cable that's included with your Beats Fit Pro.

You can also charge the case without the earbuds. "
For additional information, check out this link: Charge your Beats Fit Pro - Apple Support
Kindest regards!