how can i know airpods max is charging

Hello visva186,

Thank you for reaching out in Apple Support Communities. Here's how to determine when the AirPods Max are charging:

Check the charge status

The status light on the right earphone shows the charge status of your AirPods Max.

If you press the noise control button when your AirPods Max are connected to power, the status light will turn green if the charge has more than or equal to 95 percent remaining, or amber if the charge has less than 95 percent remaining.

If you press the noise control button when your AirPods Max aren't connected to power, the status light will turn green if the charge has more than or equal to 15 percent remaining, or amber if the charge has less than 15 percent remaining.

You can also check the charge status of your AirPods Max with your iPhone, iPad, iPod touch, or Mac.

On your iOS device

Hold your AirPods Max close to your device. Wait a few seconds or press the noise control button to see the charge status of your AirPods Max. 

You can also check the charge status of your AirPods Max with the Batteries widget on your iOS device.

On your Mac

1. Take your AirPods Max out of the case.

2. Click the Bluetooth icon  in the menu bar.

3. Hover the pointer over your AirPods Max in the menu.

This information is outlined here for you to reference and will help you determine how the AirPods Max are charging: How to charge your AirPods Max and learn about battery life - Apple Support

Kind regards.