Power bank: What is it and how does it work?

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MG-PB laptop powerbank MOJOGEAR meenemen in vliegtuig
In our modern world, portable electronic devices such as smartphones, tablets and wireless earbuds have become indispensable. They offer us convenience, connectivity and entertainment, but they have one drawback: limited battery life. Fortunately, there is a smart solution to this problem: the power bank. In this article we explain to you what exactly a power bank is and how it works to supply your devices with energy.

What is a power bank?

A power bank, also known as a portable charger or external battery, is a compact, rechargeable battery that you can easily take with you. The power bank acts as a mobile energy source, allowing you to charge your electronic devices on the go without needing a socket. A power bank is auseful accessory if you are traveling , have a long day at a festival or are simply not near a power socket. A power bank gives you the freedom to charge your devices anytime, anywhere.

How does a power bank work?

But how exactly does a power bank work? Let's take a look under the hood. A power bank usually consists of several internal battery cells, a charging circuit and a number of output ports. The internal battery cell is usually a high-quality lithium-ion or lithium-polymer battery, which can store sufficient energy. The charging circuit controls the charging process of the power bank itself.

To charge your electronic devices with a power bank, simply connect your device to one of the ports on the power bank using a suitable charging cable . The power bank automatically detects the type of device and adjusts the optimal charging current to charge the battery safely and efficiently. Many power banks these days have multiple output ports, so you can charge multiple devices at the same time.

The capacity of a power bank is usually expressed in milliampere hours (mAh) or watt hours (Wh). The higher the number of mAh or Wh, the more energy the power bank can supply. It is important to note that the actual efficiency of a power bank may vary, as some energy is always lost in the charging process.

Things to pay attention to when buying a power bank

Now that you have a better understanding of what a power bank is and how it works, it's time to look at some high-quality power bank options on the market. There are several brands that offer reliable and durable power banks to meet your needs.

It is always useful to look for a power bank that suits your specific requirements, such as capacity, size and extra functions. Take the time to compare and rate the available options based on user reviews and quality.

Looking for Power banks?

Capacity

There are a number of things important when choosing a power bank. Firstly, the capacity of the power bank is important. This is usually expressed in milliampere hours (mAh). The higher the number of mAh, the more energy the power bank can supply and the more often you can charge your devices before the power bank itself needs to be charged. We recommend choosing a power bank of at least 10,000 mAh. You can usually charge your phone two or three times with this. If you are without power for several days (e.g. at a festival), choose a power bank of 20,000 mAh or more.

If you want to take a power bank with you on the plane, you are bound by a number of rules. It is not allowed to simply take a power bank with a large capacity or multiple power banks with you. Read more about this in our article about taking a power bank on a plane .

USB ports

In addition, it is useful to pay attention to the number and type of output ports of the power bank. If you want to charge multiple devices at the same time, make sure you choose a power bank with multiple output ports. An important detail to keep in mind is that in modern power banks there are often two different types of USB ports: USB-A and USB-C, where the former will charge slower than the USB-C port. In addition, there are various technologies that ensure that you can charge your device quickly: USB Power Delivery and Quick Charge 3.0.

Another factor in choosing your power bank is its capacity. Power banks like the MOJOGEAR Mini EVO are perfect for charging smartphones but are often not powerful enough to power a laptop. In that case, we recommend a power bank with a capacity of at least 65W, so you can supply most modern laptops with power without any problems.

Size and weight

Another thing to take into account is the size and weight of the power bank. If you plan to take the power bank with you often, for example when traveling, it is useful to choose a compact and lightweight option that fits easily in your bag. A perfect power bank for traveling is, for example, the MOJOGEAR Mini EVO , which is no bigger than a debit card and still has enough power to charge your devices.

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Additional functionalities

Most power banks automatically start charging as soon as you connect your smartphone or other device. This often does not apply to low-consumption devices such as a smartwatch or Bluetooth headphones. When you try to charge it, the power bank fails because it does not register the device. The solution for this is to choose a power bank with a so-called low-current mode, such as the MOJOGEAR MINI EVO .

Another useful feature is pass-through charging. A power bank with Pass-through can be charged while the power bank charges another device at the same time. This allows you to work faster and more efficiently.

In short, a power bank offers the freedom to charge your electronic devices on the go. Whether you're a traveler, adventurer or just someone who always wants to stay connected, a power bank is an indispensable accessory. Make sure you choose a power bank that suits your needs and enjoy the benefits of a portable energy source.

Do you have any questions about power banks or another product? Please feel free to contact us via our contact page !

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