To stop an Amazon Elastic Block Store (EBS) volume to avoid billing charges, you can't directly "stop" an EBS volume like an EC2 instance. However, you can take a few actions to eliminate or minimize costs:
Detach the EBS Volume
Detach the volume from any EC2 instance. Once detached, the volume will no longer be in use and won't incur additional charges for being attached to an instance. However, it will still incur charges for storage, since EBS volumes are charged by the GB per month.

Delete the EBS Volume
If you no longer need the data on the volume, you can delete the EBS volume entirely. You first need to Detach volume from the instance, refresh and click on Delete button, this will stop all charges for that volume. However, be careful, as data will be lost unless you've created a snapshot or backed it up.

Create a Snapshot (Optional)
If you might need the data later, you can create a snapshot of the EBS volume. A snapshot is stored in Amazon S3 and will incur a cost, but it's usually cheaper than keeping the EBS volume itself. After creating a snapshot, you can safely delete the volume and avoid the ongoing storage cost.
