My left airpod will not work but shows it is charged.

Hi GerberGirl74

Welcome to the Apple (user-to-user) Community.

Wondering if the left AirPod has such a low volume it appears it's not working.

Pause, skip, and adjust volume with your AirPods and AirPods Pro - Apple Support

or

You might want to try the steps in this article from Apple Support:

Learn what to do: If your left or right AirPod isn't working - Apple Support

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More info:

Apple's reset method: How to reset your AirPods and AirPods Pro – Apple Support

What to do: If your AirPods won’t charge - Apple Support

To check the settings of your AirPods and AirPods Pro

Eg: Set Microphone to left, right or automatic

Change the settings of your AirPods and AirPods Pro – Apple Support

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Also:

AirPods Support Website:

Find all the topics, resources, and contact options you need for your AirPods....

AirPods Support - Official Apple Support

or

AirPods Repair & Service - Apple Support

All the best :-)