Hi @cprince33394
Here's the [https://dl.dell.com/content/manual45476405-xps-15-2-in-1-service-manual.pdf?language=en-us|service manual] taken from this support [https://www.dell.com/support/home/en-au/product-support/product/xps-15-9575-2-in-1-laptop/docs|webpage] for the laptop.
Go to p.11 to view the procedure to remove the base cover.
On p.29 you will find the pre-requisite steps and then the procedure to remove/replace the battery