Product Description: 6 Sections 18650 DIY Type C Two Way Fast Charging Power Bank Nesting Case Powerful Charging Capability: This power bank case supports up to 5.0A battery charging current with self-adaptive charging current adjustment. It ensures your devices are charged quickly and efficiently, adapting to the optimal current for each device. Versatile USB Support: Enjoy fast charging on any USB port. When using two or more output ports simultaneously, the power bank supports a stable 5V output, making it perfect for charging multiple devices at once without compromising on speed. High Efficiency Discharging: Featuring high-efficiency synchronous switch discharging at 5V 2A, this power bank case achieves up to 95% efficiency. This ensures minimal energy loss during charging, maximizing the power available to your devices. Broad Compatibility: Designed to support fast charging for BC1.2, Apple, and Samsung cellphones, this power bank case is highly compatible with a wide range of devices. Whether you're charging a smartphone or a tablet, it delivers reliable performance. Advanced Protocol Support: The power bank case supports multiple protocols, including PD2.0 two-way input/output, PD3.0 input/output, and PPS output protocol. It accommodates various voltage inputs and outputs (5V, 9V, 12V) and supports PPS from 5V to 11V, ensuring flexibility and compatibility with the latest charging standards. This DIY power bank case is perfect for tech enthusiasts and professionals who need a reliable, efficient, and versatile charging solution. Its advanced features and broad compatibility make it an essential accessory for keeping your devices powered up on the go.