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
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