Dummy Battery Interface Camera Does Removing An Optical Drive Make A Significant Difference On Battery Drain?

Does removing an optical drive make a significant difference on battery drain? - dummy battery interface camera

My laptop has an optical drive, and came with a dummy.

I just use it to install an operating system, and even then not with my USB DVD drive. Otherwise, all USB data transfer and Wi-Fi anyway.

So I was wondering, will make a difference to remove the drive, energy smart?