18650 Dual USB Powerbank lithium battery Charger Board

The lithium battery charging and discharging module is suitable for use in a power bank, it has two outputs of 1 and 2 amps with a USB port and a voltage of 5 volts. The LCD on the product module is used to display the charge level and the status of the charger. This module can perform charging operations in two working modes: standard charging and fast charging. Only by connecting a 5V voltage source with a micro USB port to the input of the charger, it can charge the battery connected to the output up to 5V. This module is generally suitable for portable power supplies that use 18650 lithium batteries. You don't need to press the button to use this module, we will automatically output it by connecting to the mobile phone. The appropriate current for charging the mobile battery is automatically set. This module is not suitable for power less than 0.5 W and higher than 10.5 W. It should be noted that this module does not have a protective circuit, therefore, according to the voltage of 3 to 4.2 volts, multiple batteries in series should not be paralleled with each other. The battery should have a capacity of about 4A for discharge.

In order to use the fast charging mode, hold the button on the board for 5 seconds. At this time 5V/2.1A. It will be shown on the screen and you can use it.

Note: If you use the infinite stream function (continuous flow from the module), do not use the fast charging mode. Otherwise, the module will be damaged.