This is a car power adapter, is very useful, it uses cigar-lighter to provide power to your Lipo battery charger through a barrel 5.5mm x 2.1mm plug.
Input voltage: DC 12V ~ 24V
Output voltage: Same as Input
Working current: 3A
Output line length: 1.35m
Working temperature: -20C ~ +50C
Feature: short-circuit protection, overvoltage protection, overcurrent protection
Compatible with devices of input DC 12V, 3A (below) working current.