3pcs 0.5A 3S Synchronous Buck Li-Ion Charger DC 5-23V to 4.2V 8.4V 12.6V Power Supply Module for 3.7V 7.4V 11.1V 18650 Lithium Battery

Description: 3-Cell(3S) 12.6V Version: Input voltage: DC 14.8-23V(Recommend DC 14.8V/15V/18V)Charging voltage: 12.6VCharging current: 0.5A Led indicator:Bright: Charging Off: full blinking: almost ful