Features: The nonwelding power supply set revolutionizes projects with its solderfree 6x18650 lithium batteries slot, built in overcharge/short circuit protections for enhanced safety. Engineered with durability plastic metal PCD composite construction, this power shell box delivers exceptionals shock resistance and long term reliability, while its design enables easy assembly in minutes. Ideal for electronics hobbyists, STEM educators, and field technicians seeking power solution for prototyping, emergencies backups, or portable device charging stations. Perfectly serves as uninterrupted power for home security systems, camping equipment, robotics projects, and mobile workstations requiring stable 18650 battery driven electricity. Compact yet robust, this versatile power supply set combines industrial grade components with user friendly operate, making professional energy management accessible for workshop applications. Specifications: Component: Plastic + Metal + PCD, Size:Approx.6x5cm/2.36x1.97inch Charging Input:12-13V Output:12V/9V USB 5V Supports 6x18650 lithium batteries(not included), weldingfree design, convenient and fast; Usage scenarios: Suitable for electronic enthusiasts, engineers and users who need portability power solution. It can be used in laboratories, workshops or homes. Package Includes: 1pc Battery Case(Battery not included) note: Please allow 1-10mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.