2S 3S 4S Li-ion battery charger battery protection board TypeC USB boost charging board DC3-5V
SPECIFICATIONS
Application: Computer
Brand Name: STJF
Choice: yes
Condition: New
Dissipation Power: 1
High-concerned chemical: none
Operating Temperature: -40-+85
Origin: Mainland China
Package: DIP
Supply Voltage: 1
Type: Voltage Regulator
is_customized: Yes
semi_Choice: yes
Product description:
1: Various choices, customers choose what they need according to different needs
2: Wide range of applications
3: High safety performance
4: Simple and easy to understand, easy to operate
5: Battery overvoltage protection
Product parameters:
2-Cell(2S) 8.4V version:
Input voltage: DC 3-6V (recommended 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 (recommended DC 3.7V 5V)
Input current: 1A (1A version); 2A (2A version); 4A (4A version)
Charging voltage: 12.6V
Charging current: 0.37A (version 1A); 0.74A (version 2A); 1.48A (version 4A)
4-Cell(4S) 16.8V version:
Input voltage: DC 3-6V (recommended DC 3.7V 5V)
Input current: 1A (1A version); 2A (2A version); 4A (4A version)
Charging voltage: 16.8V
Charging current: 0.28A (version 1A); 0.56A (version 2A); 1.12A (version 4A)
Switching frequency up to 1MHz
Quasi-CV mode compensates for battery internal resistance voltage loss and trace resistance battery
automatic recharge
Protection voltage below input and battery short circuit
Good adaptability to input power, limited drive capability
Battery overvoltage protection
LED indicator: "CR" LED is the charging status indicator
"OK" LED fully charged or constant voltage mode;
Working ambient temperature -40°C to +85°C
Dimensions 39mm x 18mm x 6.3mm
Weight: 5g
Applications:
PDA, MP3 player, MP4 player
digital camera
Bluetooth application
game console
notebook
Lithium battery Lithium battery 18650
cell phone
solar charging
Audio equipment
portable device
POS, electric fan
TYPE-C charging equipment





- Standard Shipping: Standard Shipping (12–18 Business Days)
- Express Shipping: Expedited Shipping (5–9 Business Days)
- Free Shipping: Orders over $199 qualify automatically
- Tracking: Full tracking number provided for all orders
- Returns: 30-day hassle-free return window
- Condition: Items must be unused and in original packaging
- Refund: Full refund processed within 3-5 business days
- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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