Lithium Battery Expansion Board for Development Kits and Boards

The UPS Lithium Battery Expansion Board with 3800mAh Lithium Battery offers two distinct working modes: outdoor portable power supply and indoor UPS power supply. As an outdoor portable power supply, the motherboard is solely powered by the lithium battery, with a maximum external power supply capacity of 5.1V 2.5A.

For indoor UPS power supply, users can insert a Micro-USB into a standard 5V 2A power adapter, and the external USB-A interface can output a maximum of 5.1V 3A. The board features 4+2 LEDs to indicate charging, discharging, and battery power level.

The product boasts high-security features, including an overcurrent and overdischarge protection system integrated into the motherboard. The external output port has a self-recovery mechanism to prevent damage from external short circuits. Additionally, the PMU (Power Management Unit) will automatically cut off the 5V output when the lithium battery voltage drops below 2.8V, preventing over-discharge. When the total current of the two USB output ports reaches 3A, the self-recovery feature will activate, and when the external port is unloaded, the 5V output will automatically shut off.

The Lithium Battery Expansion Board comes with a 3.7V 3800mAh lithium battery and weighs approximately 122g/4.3oz. The package includes the expansion board, the lithium battery, and a set of installation accessories.

In summary, the UPS Lithium Battery Expansion Board offers a versatile power solution, with the ability to function as both an outdoor portable power supply and an indoor UPS power supply. Its comprehensive safety features and intuitive design make it a reliable choice for a variety of applications.

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