Light Electric Wheelchair The X-lite comes with one or two standard 5.2AH lithium batteries that have an easy-release catch as well as being certified by the airline for seamless travel experiences. Battery life can be extended by adhering to the maintenance guidelines of the manufacturer and using the wheelchairs regularly. http://www.stes.tyc.edu.tw/xoops/modules/profile/userinfo.php?uid=1676736