Product introduction：

1：Diverse choices, customers choose their needs according to different needs 2: Wide range of applications 3: High safety performance 4: Simple to understand and easy to operate 5: Battery over-voltage protection

Product parameters：

2-Cell(2S) 8.4V version：

Input voltage: DC 3-6V (DC 3.7V 5V recommended) Input current: 1A (1A version); 2A (2A version); 4A (4A version) Charging voltage : 8.4V Charging current : 0.55A(1A version);1.1A(2A version);2.2A(4A version)

3-Cell(3S) 12.6V version:

Input voltage: DC 3-6V (DC 3.7V 5V recommended) Input current: 1A (1A version); 2A (2A version); 4A (4A version) Charging voltage : 12.6V Charge current: 0.37A (1A version); 0.74A (2A version); 1.48A (4A version)

4-Cell(4S) 16.8V version：

Input voltage: DC 3-6V (DC 3.7V 5V recommended) Input current: 1A (1A version); 2A (2A version); 4A (4A version) Charging voltage: 16.8V Charge current: 0.28A (1A version); 0.56A (2A version); 1.12A (4A version)

Switching frequency up to 1MHz Quasi-CV mode compensates for battery internal resistance voltage loss and alignment resistance cells Automatic re-charging Protection against voltage below input and battery short circuit Good adaptability to input power, limited drive capability Battery overvoltage protection

LED indicators: "CR" LED for charging status indicator                    "OK" LED for full charge or constant voltage mode.

Operating ambient temperature -40℃ to +85℃

Dimensions 39mm x 18mm x 6.3mm Weight: 5g

Product Applications： PDA, MP3 player, MP4 player Digital camera Bluetooth applications Game consoles Notebook Lithium Battery Lithium Battery 18650 Cell phone Solar Charging Audio Equipment Portable devices POS, electric fan TYPE-C charging device