Onboard subminiature PFM control DC/DC boost controller chip
Any input 0.9 V ~ 5 V dc voltage, it gives stable output 5 V dc voltage
The USB female socket can be directly connected to the USB interface equipment power supply
Input voltage indicator light on board.
1. Input USB model; MicroUSB
2. input voltage; DC5V +- 0.3V
3. charging current; (Max 1A)
4. charging mode, the first constant current, after the constant voltage
5. the output: Dual USB base
6. the output voltage is; 5V plus-minus0.3V 8, discharge efficiency: about 85% Suitable for 18650(3.7v) battery/ li-ion lithium lipo battery(3.7v)
When charging, the red LED flash, full charged, the LED light up. When discharge, the Blue LED light up
Notes: Should connect the battery polarity correctly. Or it will damage the main board. B- connect to battery-, B+ connect to battery+
