An input port is where you plug in the cable that charges the power bank itself. If your power bank is dead or running low, this is the port you want to use. You plug one end into the power bank’s input and the other end into a wall charger, USB port on your laptop, or anything else that sends power. Common input port types:
For more information, check our power bank ports guide. Some portable chargers come with built-in charging cables—usually tucked into the side or hidden under a flap. These are designed to make life easier, especially if you tend to forget your cords.
However, some power banks can even feature 12V sockets, AC plugs, barrel-type ports, and even cigarette lighter sockets. Power banks have a minimum of one output port, but they can have as many as 7-8 different output ports, especially larger capacity models. Power banks with more than one port can generally charge multiple devices simultaneously.
Voltage is like the pressure that pushes electrical current through your device. Most modern power banks are built to output either 5V, 9V, or even 12V depending on the type of charging they support (like standard charging or fast charging). A regular USB-A port usually outputs 5V.
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Assuming you’ve got the requisite charging cables, you’ll also need a compatible charger or portable power bank to enable fast charging.
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