|Use this battery to take your GDL 39 or GDL 39 3D on the go so you don't have to plug it into your cigarette lighter receptacle in your vehicle or airplane.|
I carry a GDL39 for safety as a backup device. Having the battery power insures it will work if power fails in the aircraft. Coupled with my Garmin 696 from Spruce, I have a good portable avionics solution. It can be carried to other planes when I rent also. Spruce is so fast and reliable, that I count on them every year for parts.
Yes, with the GLD 39 battery attached to the 39 it will charge when you connect DC power to it.
Yes, this will include the backup battery and the wall charger.
Per the installation manual the typical battery operating time is 5 hours.