Lithium Battery Charger Module 4 Channel Type C Battery Charging Board for 3.7V 18650 503035 603443 DC 5V 1. Thermal Regulation: This charger module is thermally regulated, so it can maximize the speed without overheating.2. Working details: This charging module works under constant current and constant voltage, pre-set charging voltage 4.24V, accuracy 1%.3. Automatic charging: This charger module supports automatic charging, charging termination C/10, power supply current 25 mu;A at shutdown, charging threshold 2.9V, soft start to limit the starting current.4. Scope of application: This charger module can be used for 3.7V 18650 503035 603443.5 batteries. Perfect Replacement: This charger module with excellent performance can be used easily, perfect replacement for your old and broken switch. Specification: Item Type: Charger Module Material: PCB Power Supply: DC 5V greater than or equal to 2A Charging Voltage: 4.24V (1%) Protection: Protection for reverse connection of battery cells Charging current: 500MAT Operating ambient temperature: -40 deg; c to + 85 deg; cPackage List: 1 x Charger Module