simple batch script not working PS, but works in cmd

I have a .bat script that just cds into a directory

cddocs.bat

cd UsersMeDocumentsNetBeansProjects

It is in my home folder. (C:UsersMe)

In cmd when I run it

C:UsersMe>cddocs
C:UsersMe>cd UsersMeDocumentsNetBeansProjects
C:UsersMeDocumentsNetBeansProjects>

It works as expected, I'm in the NetBeans directory. In powershell, I get this

PS C:UsersMe> .cddocs

C:UsersSeth>cd UsersMeDocumentsNetBeansProjects
PS C:UsersSeth>

So it appears to run the cd command, but I am still in my home directory! I must be missing something really simple here. How can I get this tiny script to actually cd the directory in powershell?

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