Lithium Cell Charging Board Auto Step Up Protection Battery Charger Module For Replacement 4A Input 2.2A Charging Current

Lithium Cell Charging Board Auto Step Up Protection Battery Charger Module for Replacement 4A Input 2.2A Charging Current Specification: Item Type: Battery Charger Module Version: 2 cell 2S 8.4V. Input Voltage: DC 3-6V DC 3.7V 5V recommended. Charging Voltage: 8.4V Package List: 1 x Battery Charger Module