This is the ElectriFly 12V 1A AC/DC power supply from Great Planes.
Includes: One Wall Charger 12V 1A AC/DC Power Supply
Length: 2.51 (64mm)
Width: 1.10 (28mm)
Height: 2.87 (73mm)
Input: 100-240V AC
Output: 12V DC 1A
Note: Never leave the battery and charger unattended while charging. Will not work on the Helimax AXECPv3.