Diitao 2A 5V Charge Discharge Integrated Module 37V42V Protection PCB Board Module for 18650 Lithium Battery Charging Boost Mobile Power Board Module 10PCS

Protection function:With over current,over voltage,over temperature,short circuit protection., Features:High quality,strong vibration resistance,good mechanical and electrical performance,high efficiency., Usage instructions:VN: charging port input positive +; Charger Negative Input -;GND:Lithium battery -;BAT:Lithium battery +;KEY:Output enable trigger port (low pulse trigger)., For MCU users: If a smaller load KEY is accepted, it can be connected to the MCU to provide a low level for the module to continue working for about 20 seconds.Trigger mode: Low level trigger (ground), Usage:It can be used for car charging modification,tablet computer, driving recorder power supply,household power supply,mobile power supply,etc., Package includes:10pcs 2A 5V Charge Discharge Integrated Modules.