> For the complete documentation index, see [llms.txt](https://arcsky.gitbook.io/x55-public-knowledge-base/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://arcsky.gitbook.io/x55-public-knowledge-base/accessories-integration/bottom-mount-battery-module.md).

# Bottom Mount Battery Module

This accessory allows the user to mount the payload on the top side of the X55 for a full 360 sky view. To install this accessory to the X55, follow the steps below:

* Remove 2x FHCS from the cover

![](https://2204187310-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEEy9Jtkhq7S6GY1u4d4N%2Fuploads%2FCJ2wcXEx2KYyhpYpnNKr%2F0.png?alt=media)

* Install the additional payload rails to the top of the X55 as shown.

![](https://2204187310-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEEy9Jtkhq7S6GY1u4d4N%2Fuploads%2F7DDrILRQd8S8hOHhu1Y0%2F1.png?alt=media)

* Install the Bottom Mount Battery Module to the payload rails. Make sure the AS120 cable is facing the “Power In” side of the X55.

![](https://2204187310-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEEy9Jtkhq7S6GY1u4d4N%2Fuploads%2FOVmQx8K7hCg56cfMYk5f%2F2.png?alt=media)

* Secure the batteries using the hook & loop straps.
* Plug the battery connectors into the battery module.