> For the complete documentation index, see [llms.txt](https://avss.gitbook.io/prs-m4ex-for-dji-m4e-and-m4t-easa-c5/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://avss.gitbook.io/prs-m4ex-for-dji-m4e-and-m4t-easa-c5/prs-m4ex-for-dji-m4e-and-m4t/power-and-charging.md).

# Power & Charging

**Onboard Power**

* The PRS-M4EX EM is equipped with an independent power supply to power the PRS-M4EX in the event of a power loss from the Drone.
* The PRS-M4EX EM interfaces and charges directly from the Drone.
* If left in environments beyond the PRS limitations, the system and/or components may be damaged, the warranty shall be void, and the items may not function properly.