New and high quality
Size:9.9*4.2cm
Package Included:1pc
Instructions for use:
1. When used as a UPS, it is necessary to install a battery to ensure that the input 5V power supply has sufficient power, and the output is kept on in real time, and the battery can be started at any time when the power is off.
2. If the UPS wants to save energy consumption, solder down the output indicator after all tests are completed, which can reduce the current consumption of more than ten mA without affecting the normal output of the circuit, which is more power-saving.
3. During the use and operation, the board may be triggered to enter the protection state without output due to various reasons (incorrect touch, wrong connection, etc.). After troubleshooting, connect the board's charging port to 5V for charging, and the board is powered on again. Re-output can be activated.
4. The 5V charging power supply used by individual users uses a relatively large output capacitor. This capacitor can continue to discharge after the power is turned off, so that the power supply voltage has a slow drop process, which will cause the board after the power is turned off. Did not switch battery power quickly. If you encounter such a situation, you can connect a 1K discharge resistor in parallel to the 5V input port.
5. If you want to increase the battery capacity of the UPS module, you can use multiple cells in parallel, and other functions will not be affected.
Note:
1. Due to manual measurement, please allow an error of 1-3mm.
2. As different computers display different colors, thank you for your understanding, the actual product color may be slightly different from the image.