Hello! I'm sorry to hear about the battery issue you're experiencing with your Linkbuds. If your earbuds are draining quickly after just 10 minutes of use, it may indicate a problem with the battery. Unfortunately, I do not have specific information about the cost of battery replacement for Linkbuds as it can vary depending on the manufacturer or service provider.
I recommend reaching out to the customer support of the company that made your Linkbuds. They should be able to provide you with details about battery replacement options, costs, and any warranty coverage that may apply to your situation.
In the meantime, you can try some troubleshooting steps such as fully charging the earbuds, resetting them, or updating any available firmware to see if it helps improve the battery performance.
I hope this information helps, and I wish you the best of luck in resolving the battery issue with your Linkbuds! Let me know if you have any other questions.