In general, a higher current will result in a faster charging time. So, in a comparison between 1A and 2A, a current of 2A will charge faster than 1A. In other words, a charging current of 2A is faster than 1A.

It is important to note that the charging speed also depends on the capacity of the device being charged. Some devices have a maximum charging current they can handle, and using a higher current may not charge faster if the device cannot utilize the higher current.

When charging electric vehicles, the charging speeds can vary depending on the capacity of the charging station and the vehicle itself. It is advisable to consult the charging capacities and specifications of your specific vehicle and charging infrastructure to determine the optimal charging speed.