Hey catria90,
Try resetting your AirPods as outlined here: How to reset your AirPods and AirPods Pro - Apple Support
"How to reset your AirPods and AirPods Pro
You might need to reset your AirPods if they won't charge, or to fix a different issue.
- Put your AirPods in their charging case, and close the lid.
- Wait 30 seconds.
- Open the lid of your charging case.
- With your AirPods in your ears and connected to your iPhone, iPad, or iPod touch, go to Settings > Bluetooth, or Settings > [your AirPods], and tap the More Info button next to your AirPods. If you don't see your AirPods in Settings > Bluetooth or in Settings > [your AirPods], just go to the next step.
- Tap Forget This Device, and tap again to confirm.
- With the lid open, press and hold the setup button on the back of the case for about 15 seconds, until the status light on the front of the case flashes amber, then white.*
- Reconnect your AirPods: With your AirPods in their charging case and the lid open, place your AirPods close to your iPhone, iPad, or iPod touch. Follow the steps on your device's screen."
After resetting, put the AirPods into the case and let the whole thing charge for an hour or two. After that, check the charge again and check if the case fully charges then.
Cheers!