I'm a lithium battery power source designed for raspberry pie, which allows raspberry pie to work offline for as long as 9 hours.
Of course, I'm not limited to raspberry pie, I board 2 USB-A ports, and 1 can power the Pi board. If necessary, the other can power the embedded LCD screen and other devices.
I integrated a lithium battery charging management chip / boost imports. Bring your own batteries and weigh only 80g. In strict accordance with international raspberry pie HAT extended edition size D are stacked with simple pillars can be installed and raspberry pie board.
Battery capacity: 3800mAH
Maximum discharge current: 1.8A
No load output voltage: 5.1V + 0.1V
Standard charging current / voltage: 1.0A@5.0V
The lithium battery is full of up to voltage: 4.18V - 4.2V
CHG LED action:
Light up: charger for constant current charging.
Out: charger floating up until full of lithium.
ON LED action:
Light up: USB-A interface outputs 5V outwards
Put out: USB-A interface, no voltage output.