Lithium Battery Expansion Board for Development Kits and Boards

The UPS Lithium Battery Expansion Board features a built-in 3800mAh lithium battery and offers two distinct operating 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, providing a maximum external power capacity of 5.1V 2.5A.

For indoor UPS power supply, users can simply insert a Micro-USB into a standard 5V 2A power adapter, enabling the external USB-A interface to output up to 5.1V 3A. This versatility allows the user to seamlessly transition between the two modes based on their specific needs.

The device features a comprehensive set of safety and monitoring capabilities. It integrates overcurrent and overdischarge protection, with 4+2 LEDs to indicate the charging, discharging, and battery power status.

The external output port is equipped with a self-recovery mechanism to prevent damage in the event of an external short circuit. Moreover, the PMU (Power Management Unit) is designed to automatically cut off the 5V output when the lithium battery voltage drops below 2.8V, safeguarding against over-discharge.

Additionally, when the total current across the two USB output ports reaches 3A, the self-recovery feature will initiate fusing to protect the system. Conversely, when the external port is unloaded, the 5V output will automatically shut off to conserve power.

The UPS Lithium Battery Expansion Board comes packaged with the following items: 1 Lithium Battery Expansion Board, 1 Lithium Battery, and 1 set of installation accessories. The total package weight is approximately 122g/4.3oz.

In summary, this versatile UPS Lithium Battery Expansion Board offers a seamless transition between outdoor portable power supply and indoor UPS power supply, with robust safety features and efficient power management capabilities. Whether you need a reliable power source for your outdoor activities or a backup solution for your indoor electronics, this expansion board can cater to your diverse power requirements.

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