16x18650 Battery Case (batteries not included) with charging capabilities to replenish energy Function and energy management Provides a structured 16x18650 battery solution with builtin charging capabilities to help replenish power on the go. Compatibility Remains compatible with a range of devices. Output options Offers multiple output options including two USB ports and a TypeC port to charge different devices from a single unit. Durability and protection Built with a strength shell that provides impact resistance to safeguard internal components during travel and outdoor use. Onthego practicality Enables energy replenishment during travel or daily activities, supporting multiple devices from one portable charging box. Use scenarios Daily commute or office use Keep your smartphone, Bluetooth headset, and wearable devices powered throughout the day without needing frequent wall outlets. Road trips, camping, and outdoor adventures Power a phone, GPS, camera, and other essentials simultaneously, reducing the need to search for power sources on the move. DIY projects Provide reliable power for testing and powering components during prototype work.