What is a portable power bank?

A portable power bank is a battery with a special case and a circuit that controls power flow. Just like a bank account, it allows you to store electrical energy and use it later to charge your device.

What is a power bank and how does it work?

A power bank is a portable device that stores electrical energy and allows you to charge your devices later. Similar to a bank account, you can deposit energy into a power bank and withdraw it when needed. Before exploring the different types of power banks, let's understand the power measurement unit used in these devices, mAh.

What does a battery do in a power bank?

The battery is the heart of the power bank, responsible for storing the electrical energy. The circuitry acts as the brain, regulating the flow of energy and protecting your devices from overcharging or overheating. The charging ports, often USB or USB-C, are where you connect your devices.

How does a power bank control power flow?

A portable power bank is a battery which resides in a special case that has a specific circuit that controls power flow. Much like a bank account where you deposit you hard earned cash and withdraw it later, a power bank allows you to store electrical energy and then use it later to charge your device.

What is a common feature of some power banks?

Some portable power banks feature both an AC outlet and USB ports plus USB-C, while others may only have a single USB option. While there are various styles and brands that cater to a user’s specific needs, you can break down the types of portable power banks into three categories.

What are the components of a power bank?

Power output ports: Another key component of a power bank is its output ports. These serve as power outlets for your electronic devices and they are usually USB type C, USB type C, or for older models micro USB. However, some power banks can even feature 12V sockets, AC plugs, barrel-type ports, and even cigarette lighter sockets.