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Specification
Brand : DAOKI
BulletPoint1 : Charging voltage: DC 4.5V-5.5V (DC 5V recommended); Charging current : 0-2.1A; Charging quiescent current: 100uA; Full voltage: 4.2V+-1%; Discharge current: 0-2.4A; Discharge quiescent current: 50uA; Discharge efficiency: up to 96%; Output voltage: 5V; Output current: 0-2.4A;
BulletPoint2 : The module protection function: Over-current protection (OCP); Overvoltage protection (OVP); Short Circuit Protection (SCP); Over-temperature protection (OTP)
BulletPoint3 : Note:The first time the load is connected, the output is automatically turned on. If the load is less than 50MA, the output will be automatically turned off after 30 seconds; if the load is greater than 50MA, the output will be automatically turned on; Allow discharge while charging. (Note: At this time output voltage 4.7 / 5V)
BulletPoint4 : Widely use for solar panel turning to mobile phone charging, car charging retrofit, driving recorder power supply, household power supply, intelligent plugging transformation, fast charging adapter, etc.
BulletPoint5 : Package Content:5 x 2A 5V Charge Discharge Integrated Module, 1 x USB Female Cable
ConnectivityProtocol : Usb
ConnectorType : Usb
ItemDisplayWeight : 1 pounds
ItemName : DAOKI 5PCS 5V 2A Charge Discharge Integrated Module 3.7V 4.2V for 18650 Lithium Battery Charging Boost Mobile Power Supply Charge and Discharge Protection PCB Board Module with USB Female Cable
ItemPackageDimensions_Height : 13.5 centimeters
ItemPackageDimensions_Length : 2.5 centimeters
ItemPackageDimensions_Width : 7.4 centimeters
ItemPackageQuantity : 1
ItemTypeKeyword : electronic-component-pushbutton-switches
Manufacturer : DAOKI
Material : Aluminum
ModelNumber : DR-US-369
MountingType : Panel Mount
NumberOfItems : 1
OperatingVoltage : 5 volts
OperationMode : Automatically
PartNumber : DR-US-369
ProductDescription : Description:
Charging voltage: DC 4.5V-5.5V (DC 5V recommended)
Charging current : 0-2.1A
Charging quiescent current : 100uA
Full voltage: 4.2V+-1%.
Discharge current: 0-2.4A;
Discharge quiescent current : 50uA
Discharge efficiency: up to 96%
Output voltage: 5V
Output current: 0-2.4A;
Ambient temperature: -20° to +85°
Pin description:
VIN : Charge port positive input +
GND : Charger Negative Input -
BAT : Lithium Battery +
GND : Lithium Battery -
GND : Output negative output -
VOUT: Output Positive Output +
KEY : Output Enable Trigger Port (Low Pulse Trigger)

Use tutorial:
1.In the discharging mode (the charging mode KEY function is invalid), the KEY port is triggered once and the output is turned on; the KEY port is triggered twice in succession and the output is turned off.
2.The first time you access the load, the output is automatically turned on. If the load is less than 50MA, the output will be turned off after 30 seconds; if the load is greater than 50MA, the output will be continuously turned on.
3.When the module is charging, the output will switch the external power supply (it
will be powered off for 0.3s). The charging output voltage will be less than >4.7/<5V,
depending on the charger load capacity!
4.Trigger mode: low level trigger (ground)
MCU users, if you accept a small load KEY can be connected to the microcontroller about 20S to give a low level allows the module to continue working!
Connect the user of the single-chip microcomputer, if the small load KEY can be
connected to the single-chip 20S to give a low level, the module can continue to work

Package Included:
5 x 2A 5V Charge Discharge Integrated Module
1 x USB Female Cable

ProductSiteLaunchDate : 2020-10-28T02:32:58.114Z
SpecificationMet : Ma
SupplierDeclaredDgHzRegulation : not_applicable
SwitchType : Temperature Switch
UnitCount : 1
UnspscCode : 39122200