7,800mAh POWER GRAIN CYLINDRICAL Enjoy your business trip with small size and light weight powergrain. Specification Dimension: 98*63*24.3mm Weight: 170g Battery Type: Li-ion 18650 Capacity: 7800mAh Micro Input: DC 5V/2A USB'A Output: DC 5V/2.1A Protection functions: Short circuit,overcharging,overdischarging,overcurrent Life cycle: â?§300 Accessory USB-A to USB-C cable (20 CM)