Spare charger for the Doogo X8 Electric Scooters (also can charge a spare battery pack).
Specs: 42 Volt, 2 Amp charger, compatible with an input of 100V - 240V (50/60Hz), and max amperage of 2.5A.
The charging port uses a one pin connector with outside diameter of 5.5 mm; inner diameter of 2.1 mm.