Skip to page content

USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

United States Department of Transportation United States Department of Transportation

AC 20-184A - Guidance on Testing and Installation of Rechargeable Lithium Battery and Battery Systems on Aircraft

Document Information

Number
20-184A
Title
Guidance on Testing and Installation of Rechargeable Lithium Battery and Battery Systems on Aircraft
Status
Active
Date issued
2026-09-18
Office of Primary Responsibility
AIR-626, Human Machine Interface Section
Description

This AC provides manufacturers and installers with an acceptable means, but not the only means, of compliance with §§ 2 3.2525, 25.1353, 27.1353, 29.1353, and additional commonly issued requirements related to the design, installation, operation, and maintenance of rechargeable lithium batteries and battery systems on aircraft.

Content
Cancels
Cancels
Number Title Date
20-184 Guidance on Testing and Installation of Rechargeable Lithium Battery and Battery Systems on Aircraft

The guidance in this AC is intended for manufacturers, installers, maintenance personnel, and users of installed rechargeable lithium batteries and battery systems on aircraft. As with all advisory material, this AC is not mandatory and does not constitute a regulation. It is issued for guidance purposes and to outline a means of compliance with applicable airworthiness requirements.

This advisory circular (AC) provides manufacturers and installers with an acceptable means of compliance to meet the installation, operation, maintenance and airworthiness requirements for installation of lithium batteries on aircraft (14 CFR part 21, 23, 25, 27 and 29).

 2015-10-15