Description
- USB lithium battery charge and boost circuit board ideal for diy power banks with a maximum quiescent current of 8uA.
- Micro USB for charging of the 3.7v lithium cell and USB connector with boost circuit for 5v output.
- Charging current upto 1A with built in charge status LED and an output current upto 2A with over voltage protection, short circuit protection, overload protection.
- Input voltage : 3.7v to 5.5v;
- Charging current :1A;
- Output current :1A & 2A (max);
- Standby current : 8uA
- Output voltage : 5V;
- Battery charged cut of voltage : 4.2v ±1%;
- Battery discharge cut off voltage : 2.9v ±1%;
- Discharging efficiency : 85% (input 3.7V output 5V/1A)
- Charging Display:when charging 0-25%,
- the first light will flash,and other lights are off;
- when charging 25%-50%,the second light will flash,and the first light remains on;
- when charging 50%-75%,the third light will flash,and the first two lights remain on;
- when charging 75%-100%,the fourth light will flash,and the first three lights remain on
- then the four lights are all on until charging to 100% .
- Package Include: 1 x 5V Booster PCB
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