Features: The Power Management Expansion Board is the UPS solution for Jetson Nano Developer Kit, providing uninterrupted power supply and safe power management. With its compact design and integrated battery holder, the Expansion Board offer a power backup for Jetson Nano. The Expansion Board ensures uninterrupted power supply, allowing you to focus on your creation without worrying about sudden power loss. Experience hassle free power management with the Expansion Board, featuring automatic powering off after system safe shutdown and intelligent charging and discharging. It can communicate through the I2c interface, measure parameters such as battery voltage, current, power, and remaining power, and detect the working status of the module in real-time;On board 0.91inch OLED display screen, displaying real-time information such as battery voltage, IP address, and memory;Onboard battery protection circuit, preventing overcharging, overvoltage, overcurrent, short circuit, etc., balanced charging, stable and safe operation; Specifications: Material:Plastic Size:Approx.11.3x7.9cm/4.45x3.11in for Jetson Nano; Output:5V Charging Power:8.4V2A Control Interfaces:I2C Battery Capacity:4x18650 10400mAh Note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1xUPS Power Board 4xScrew 1x6Pin 9cm Cable 4x18650 Battery 1x Charger