Li-Pol car battery charger, 8.4V, 1A, 5.5x2.1mm,

Li-Pol battery charger for car (cigarette) socket.

Input voltage: 12-24V DC
Output voltage: 8.4V DC, 1A
Connector size 5.5 mm (outer diameter) x 2.1 mm (inner diameter)
Cable length 1m
The positive pole is on the inner shell
Size 73x27x77 mm

Indicator:

Green: Battery not connected or fully charged

Red: Charging