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DC-DC step-up 5V 2.1A for 18650 Charge/Discharge (boost) / battery protection

:FAL08065
€3.66

4 in 1 Charging + Discharging + Lithium Battery Protection + Battery Level Indicator Module. Lithium battery protection function: over-current, overvoltage, over-temperature, short circuit protection.

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*Disclaimer: The images are merely illustrative.

  • MCU users, if you accept a small load KEY can be connected to the microcontroller about 20s to provide a low level allows the module to continue working. Trigger mode: low level trigger (ground)
  • In discharge mode (The charging mode KEY function is invalid), trigger the KEY port once to open the output; continuously trigger the KEY port twice to close the output.
  • 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)


Charging voltage: DC4.5V-5.5V (DC5V recommended)
Charging current: 0-2.1A
Charging quiescent current: 100uA
Full voltage: 4.2V+-1%
Discharge current: 0-3.5A
Discharge quiescent current: 50uA
Discharge efficiency: up to 96%
Output voltage: 5V
Output current: 0-2.1A
Ambient temperature: -20°to+85°
colour: black
Material: PCB+electronic components
Size: 25x15.9mm

FAL08065

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