The charger - MicroUSB is designed for 3.7V lithium single-cell batteries. With its small size, it can be easily integrated into your applications. It adopts the TP4056X charging chip, which ensures fast and safe charging. Three current output modes can be easily selected through different connection points on the back (the default output is 50mA). The thermal feedback on the TP4056X can automatically adjust the charging current, limiting the chip's temperature under high power or high ambient temperature conditions.

Connect the charger to a power source via the micro USB port. The LED on the charger will blink when no battery is connected, stay lit during charging, and turn off when the battery is fully charged. The LED does not consume power from your battery. At the same time, you can connect an external indicator to conveniently check the charging status when the charger is integrated into your applications.

There are 3 charging stages: low current charging, constant current, and constant voltage, ensuring safety and saving time.

Features:

• Multiple current output modes (50/200/500mA)
• Small size
• Available external indicator
• Safe and fast charging

Specifications:

• Input Voltage: 5V
• Charging Current: 50mA, 200mA, 500mA
• Charging Voltage Limit: 4.2V±1%
• Operating Temperature: -40℃~85℃
• Dimensions: 16.5 x 25mm