The power of charging piles varies from 1kW to 500kW. Generally, the power levels of common charging piles include 3kW portable piles (AC); 7/11kW wall-mounted Wallbox (AC), 22/43kW operating AC pole piles, and 20-350 or even 500kW direct current (DC) piles.

The (maximum) power of the charging pile is the maximum possible power it can provide for the battery. The algorithm is voltage (V) x current (A), and the three-phase is multiplied by 3. 1.7/3.7kW refers to single-phase power supply (110-120V Or 230-240V) charging pile with a maximum current of 16A, 7kW/11kW/22kW refer to charging piles with single-phase power supply of 32A and three-phase power supply of 16/32A respectively. Voltage is relatively easy to understand. Household voltage standards in various countries, and current are generally the standards of existing electrical infrastructure (sockets, cables, insurance, power distribution equipment, etc.). The market in North America, especially the United States, is quite special. There are many types of sockets in American households (the shape, voltage, and current of NEMA sockets). Therefore, the power levels of AC charging piles in American households are more abundant, and we will not discuss them here.

The power of the DC pile mainly depends on the internal power module (internal parallel connection). At present, there are 25/30kW modules in the mainstream, so the power of the DC pile is a multiple of the power of the above modules. However, it is also considered to match the charging power of electric vehicle batteries, so 50/100/120kW DC charging piles are very common on the market.