How to USE: 18650 Lithium Li-ion Battery Charger Module Come with Micro USB,VIN+ Port Input 5V Solar Panel, BAT+ Port Can Output 4.2V to Charger 3.7V 18650 Battery
Applications: These 18650 Lithium Li-ion Battery Charger Module Can be Used for Multimeter Converter to Lithium Battery Charging, Battery Charger Module Combines,The 18650 Battery Charger with a Boost Circuit.Adds a Battery and Converts a Low Power DC Device to a USB Rechargeable Device