4.2V 8.4V 12.6V 16.8V 21V 2A DC 5.5mm Or 3.5mm Power Adapter Li-ion Red Charging For 1 2 3 4 5 String Lithium Battery Charger

Voltage range : Low voltage non-USB (below 75V DC, below 50V AC) Output Power : ≤37.5 High-concerned chemical : None Data Transmission : No Output Current : 2A Power Source : DC Package : Yes Use : Standard Battery Model Number : 4.2V/8.4V/12.6V/16.8V/21V-2A Display screen : No Intelligent Charge : Yes Quick charge : Yes Type : Electric Voltage : 3.7 В Input: AC100-240V 50/60 Hz 0.8A Voltage when charging: 4.2V 8.4V 12.6V 16.8V 21V Charging Current: 2A Charging mode: CC-CV Charging indicator: Red light = charging, green light = fully charged Charging port: DC5.5 x 2.1 /3.5*1.35mm Dimensions: 94x47x33 mm Protection: overvoltage protection / overcurrent protection / overload protection / short circuit protection Application: Lithium batteries (lithium-ion batteries, lithium-polymer batteries), the nominal voltage of the battery is +-5% Protective functions: Label:Yes