This was removed in May of 2024 and it was used for VFR navigation until the day it was removed . A few months prior I got a internal battery low error. My upgrade was scheduled so I choose to not deal with it . If I entered past the error it worked perfectly fine and after a couple times of doing this the error went away . That being said I’m sure it needs an internal battery but seems to work fine . The screen is clear . Database is outdated . Comes with tray and antenna .