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Description
Product Description
2A 5V charge and discharge integrated module 3.7V 4.2V 18650 lithium battery charging boost power supply protection board
Introdction
Pin description: 1.VIN: Input + on the charging port (DC45V-5.5V(DC5V recommended) 2.GND: Negative input - of the charging port 3.GND: Wires battery - 4.BAT; Battery + 5.GND: Negative output - at the output outlet 6. VOUT: positive output + at the output outlet 7.KEY: Output enable trigger port (pulse trigger)
1. In discharge mode (electric mode KEY function takes effect), the KEY port is triggered to open output once; Triggers the KEY port twice to disable output. 2. When the load is connected for the first time, the output is automatically enabled. Output is turned off after 30 seconds if the load is less than 50MA: Output is turned on continuously if the load is greater than 50mA. 3. Allow discharge while charging (note: the output voltage is >4.7/<5V)
