The Anker Zolo Power Bank A1681 combines a 20,000 mAh battery with up to 30 W output in a portable design with built-in USB-C and Lightning cables. The integrated cables reduce the need to carry separate charging cables for compatible devices. Key Features 20,000 mAh Capacity: High-capacity portable battery for extended charging away from a power outlet. Up to 30 W Output: High-speed charging for compatible devices. Dual Built-In Cables: Integrated USB-C and Lightning charging cables. Charge Up to 4 Devices: Built-in cables, USB-C port and USB-A port provide four charging outputs. Digital Display: Integrated display provides convenient power-bank status information. Durable Integrated Cables: Built-in cables are designed to withstand approximately 10,000 bends. Technical Specifications Component Specification Anker Series Zolo Model Family A1681 A1681611 Capacity 20,000 mAh Maximum Output 30 W Built-In Cables USB-C + Lightning Outputs Built-In USB-C Cable, Built-In Lightning Cable, USB-C Port, USB-A Port USB-C Output Up to 30 W Lightning Cable Output Up to 27 W USB-A Output Up to 22.5 W USB-C Input Up to 20 W Multi-Device Output Up to 15 W Total Simultaneous Charging Up to 4 Devices Display Digital Display Dimensions Approx. 120 × 73 × 31 mm Weight Approx. 360 g Color Black Compatibility & Important Information Maximum charging output depends on the charging capabilities of the connected device. When multiple outputs are used together, total output is limited to 15 W. The built-in Lightning cable is intended for compatible Lightning-equipped devices, while the built-in USB-C cable supports compatible USB-C devices. Pass-through charging is not supported. Package Contents Anker Zolo Power Bank USB-C to USB-C Cable, 0.3 m User Manual Please to review Q: What is the capacity of the Anker Zolo A1681? A: It has a 20,000 mAh battery capacity. Q: What is the maximum charging output? A: Maximum single-output charging is up to 30 W. Q: Which cables are built into the power bank? A: It has built-in USB-C and Lightning cables. Q: How many devices can be charged at the same time? A: Up to four devices can be connected simultaneously. Q: Does maximum output change when several devices are connected? A: Yes. Total multi-device output is limited to 15 W. Q: Does it support pass-through charging? A: No. Pass-through charging is not supported.