Why is the power bank your new indispensable ally?

Today’s digital lifestyle demands constant power. Whether for our cell phones, tablets or other electronic gadgets, autonomy is a major issue. This is where the power bank comes in, a simple and effective solution for keeping your devices charged, even on the move.

In this article, we’ll explore in detail what a power bank is, how it works, its capacity, and how to choose the right one for your specific needs.

What is a power bank?

A power bank is a portable external battery that can be used to charge electronic devices. It usually takes the form of a compact case containing one or more rechargeable batteries.

These batteries store energy that can be used to charge devices such as smartphones, tablets, MP3 players and other electronic gadgets that can be charged via a USB port.

How does a Power Bank work?

The operation of this is device is  fairly straightforward. It contains one or more lithium-ion or lithium-polymer batteries that store energy when charged. This energy is then redistributed to your devices via a USB port when you plug them into the external battery.

It’s worth noting that the amount of energy an external battery can store, as well as the speed at which it can charge your devices, varies according to its capacity and technology.

external battery 5000 mAh USB-C

What is the capacity of a Power Bank?

Its capacity is generally measured in milliampere-hours (mAh). This is a unit of measurement that indicates the amount of energy the battery can store.

For example, a 10,000 mAh power bank can theoretically fully charge a smartphone with a 2,500 mAh battery four times over. However, due to various factors such as energy efficiency and battery quality, in practice you’re likely to get around 70-75% of this provision.

Which Power Bank to choose? 10,000 mAh or 20,000 mAh?

The choice between a 10,000 mAh or 20,000 mAh power bank depends on your specific needs. If you only have one device to charge, and generally have access to an electrical outlet, a 10,000 mAh external battery may be sufficient.

However, if you have several devices, or plan to be away from a power source for an extended period, a 20,000 mAh external battery would be more appropriate.

How long does it take to charge a 20,000 mAh power bank?

The time needed to charge a 20,000 mAh battery depends on several factors, including the speed of the AC adapter used to charge the external battery and the energy efficiency of the battery itself.

In general, a 20,000 mAh external battery can take between 10 and 12 hours to fully charge with a standard charger. However, with a fast charger, this time can be halved.

Power bank Powertec: Cutting-edge technology for your energy needs

Our external batteries are more than just external batteries. They feature the latest fast-charging technology, Power Delivery, to ensure your devices charge quickly and efficiently. With this technology, you’ll never have to worry about running out of battery in the middle of the day.

Whether you’re on a business trip, hiking or just out and about, they’re the perfect accessory for all your portable charging needs. They give you the freedom to keep your electronic devices charged, wherever you are and whatever you’re doing.

For those who prefer a more eco-friendly solution, or for digital nomads, we offer our Powertec portable solar panel. It allows you to charge your external battery when you’re out and about, or when you’re far from an electrical outlet.

Power bank USB-C Power Delivery 20,000

Discover our external battery today!



1. Why use a Power Bank?

A power bank lets you keep your electronic devices charged when you’re on the move, traveling or during a power cut. It’s compact, portable and can charge several devices at once.

2. How does a Power Bank work?

An external battery stores energy in its built-in battery when you charge it. This energy can then be used to charge your electronic devices via a USB port.

3. What capacity for Power Bank?

The capacity of  this is measured in milliampere-hours (mAh) and indicates the amount of energy it can store. The choice of capacity depends on your specific charging needs.

4. Which power bank is good 10,000 mah or 20,000 mah?

The choice between a 10,000 mAh or 20,000 mAh power bank depends on your specific needs. If you have several devices to charge or need long autonomy, a 20,000 mAh external battery would be more appropriate.

5. How long does it take to charge a 20,000 mAh external battery?

The time needed to charge a 20,000 mAh power bank varies according to the speed of the AC adapter used. In general, it takes between 10 and 12 hours for a standard charger.

The Evolution of Power Banks

Power banks have evolved significantly since their inception. Early models were bulky and had limited capacity, but technological advancements have led to the development of sleek, high-capacity devices. Modern power banks not only offer increased storage but also incorporate features such as fast charging, wireless charging, and multiple ports to charge several devices simultaneously. These innovations have made power banks more versatile and user-friendly, catering to the diverse needs of today’s tech-savvy consumers.

Additionally, the integration of smart technology into power banks has been a game-changer. Many now come equipped with LED indicators to show the remaining battery life, built-in protection against overcharging and short-circuiting, and even apps that allow users to monitor and control the charging process from their smartphones. These enhancements ensure that users can rely on their power banks for safe and efficient charging, making them indispensable in both daily life and emergency situations.

The Environmental Impact of Power Banks

As with any electronic device, the production and disposal of power banks have environmental implications. However, manufacturers are increasingly adopting eco-friendly practices to mitigate these effects. For instance, many power banks now use recyclable materials in their construction and are designed to have a longer lifespan, reducing the frequency of replacement. Moreover, the rise of solar-powered power banks represents a significant step towards sustainability. These devices can be charged using solar energy, reducing dependence on conventional electricity sources and promoting the use of renewable energy.

For environmentally conscious consumers, opting for power banks from companies that prioritize green manufacturing practices and offer recycling programs is a positive step. These initiatives ensure that old power banks are disposed of responsibly, minimizing their environmental footprint. By choosing eco-friendly power banks, consumers can enjoy the convenience of portable power while also contributing to environmental sustainability.

Conclusion :

This has established itself as an indispensable tool for keeping our electronic devices charged, especially in an increasingly mobile world. Whether you need to keep your smartphone charged during a long trip, or simply want a power reserve for your gadgets, an external battery may be the solution.

In short, they’re the ideal choice for all your portable charging needs. They combine cutting-edge technology, versatility and respect for the environment to deliver an unrivalled charging experience.

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