"It is perfect. For quality, you can trust and rely on, look no further. Does your Vinsic 20000mah power bank have the real capacity?. The capacity of the Power Bank: 20000mAh. (20000mAh x 3.7/5 80%)/1810=6.5."
Type: Emergency / Portable Output Interface: Type C Output Interface: Double USB Output Interface: 5V/2.4A VINSIC Model: VSPB303 Is LED Lamp Illumination: No Quality Certification: CE Quality Certification: RoHS Quality Certification: FCC Input Interface: USB Type C Input Interface: Micro USB Weight: 430g Battery Capacity: 15001-20000mAh Brand Name: Vinsic Battery Type: Li-polymer Battery Support Quick Charge Technology: Two-way Quick Charge Supports Solar Energy: No Size: 158*83*25mm Compatible Model: Universal Voltage: 5V Socket Type: Others Applicable Object: Universal