2PCS Multi-Cell 4S 2A Type-C USB Boost Converter to 8.4V 12.6V 16.8V Step-Up Power Module LiPo Polymer Li-Ion Charger Protection Board
[4-Cell(4S) 16.8V Version] Input voltage : DC 3-6V(Recommend DC 3.7V 5V);Input current : 1A(1A Version);2A(2A Version);4A(4A Version); Charging voltage : 16.8V; Charging current : 0.28A(1A Version);0.56A(2A Version);1.12A(4A Version)
High Safety Performance: Battery overvoltage protection; Protection for Battery Voltage Being Low than Input and Short Battery.
Led indicator : "CR" LED is charge status indicator; "OK" LED is fully charged OR Constant voltage mode.
Applications: The Step-Up Power module can be widely used in PDA, MP3 Players, MP4 Players, Digital Cameras,Bluetooth Applications,Game Players,Notebook,Mobile phone, Solar charging, Audio equipment,Portable Devices,POS , Electric Fan, and TYPE-C charging equipment etc.