This is not a battery charger! Descriptions: Built-in Portable 5V 2A MAX USB Mobile Power Supply System Portability: compact design for portability Input: 14-21V Output TYPE-C:5V2A/5V3A 9V/2A 12V/1.5A/PD USB: 5V2A/5V3A 9V/2A 12V/1.5A/QC3.0 ...
See also: Chargers more The whole socket is 8.4x5.2x3.5cm; while they are advertised as Black or White they are also available for those who prefer it in a Maroon red colour. Early USB adapters could only charge .5amp, and then some computers allowed charging at 1amp. Yes there are ...