Efficient Dual Voltage Output: This Mini UPS offers a versatile 5V and 12V output, catering to a wide range of devices, ensuring that your essential gadgets remain powered during outages. User-Friendly DIY box: Includes three 18650 battery cases (without battery) that require no soldering, making assembly easy and safe. Perfect for DIY enthusiasts looking to build their own reliable backup power source. Portable and Compact: Designed for mobility, this power bank kit is ideal for outdoor activities, emergency power backup, or any situation where traditional power sources are unavailable. Robust and Reliable: Built to last, this kit ensures a steady power supply, safeguarding your devices against power interruptions. Color: Black Material: ABS Package Contents: 1 * U-shaped 3-cell 5V12V lithium battery box (without battery) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.