2S / 3S / 4S Charging Module Battery Charging Board Type-C Step-Up Boost Module 18650 Lithium Battery Charger Module - 4S 4A

• Switching frequency up to 1MHz

• Quasi-CV mode to compensate for the voltage loss on the battery's internal

• Resistance and trace resistance automatic recharge

• Good adaptability to input supply with limited driving capability

• With battery overvoltage protection, low voltage protection, and short circuit protection

• Great for PDA, MP3, MP4, cameras, Bluetooth applications, games consoles, notebooks, 18650 lipo lithium battery, phones, solar charging, audio equipment, POS, electric fan, Type-C charging equipment, etc.

Specification:

• Size: 39x18x6.3mm

• Operating temperature - 40 ? ~+85 ?

2-Cell (2S) 8.4V Version

• Input voltage: DC 3-6V (Recommend DC 3.7V 5V)

• 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(Recommend DC 3.7V 5V)

• Input current: 1A (1A Version); 2A (2A Version); 4A (4A Version)

• Charging voltage: 12.6V

• Charging current: 0.37A (1A Version); 0.74A (2A Version); 1.48A (4A Version)

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)

LED Indicator:

• "CR": Charging

• "OK": Fully charged or constant voltage mode