Large power bank: always and everywhere enough energy
An empty battery always comes at an inconvenient time. Especially when you're on the go, working, or traveling. That's exactly why more and more people are choosing a large power bank. This ensures that your smartphone, tablet, or other devices stay charged at all times. But what is a good choice? And how big should a power bank be? We will explain this clearly here.
What is a large power bank?
A large power bank is an external battery with a higher capacity than standard models. While a small power bank often has around 5,000 mAh, a larger variant usually starts from 10,000 mAh and can go up to 20,000 mAh or more. The larger the capacity, the more often you can charge your device. With a large power bank, you can often fully charge a smartphone multiple times, depending on the model.
How big should a power bank be?
The question of how big a power bank should be mainly depends on your usage. Do you use your phone normally and just want an extra charging moment on the go? Then a 10,000 mAh power bank is often sufficient.
Are you often on the go, traveling, or using multiple devices at the same time? Then a larger power bank of 15,000 to 20,000 mAh is a better choice.
In practice, we see that many users choose a balance between capacity and size. A larger power bank offers more assurance but is often slightly heavier and less compact.

Power bank large capacity: what does that mean in practice?
A power bank with large capacity sounds handy, but what does that really mean?
- 10,000 mAh → about 2 times charging your smartphone
- 15,000 mAh → 3 to 4 times charging
- 20,000 mAh → 4 to 6 times charging
This depends on your device and usage. Tablets and other devices, for example, require more energy.
Our experience: when do people choose a large power bank?
In practice, we see that people often switch to a large power bank after encountering limitations.
For example:
- your phone doesn't last until the end of the day;
- you need to charge multiple devices;
- you are often on the go without a power outlet.
What to look for in a good large power bank?
A good large power bank is not only recognized by its capacity. Also pay attention to:
- reliable battery technology;
- protection against overcharging and overheating;
- USB-C and fast charging options;
- solid construction.
Additionally, it is important that the power bank meets European safety standards, such as a CE marking.
Why Grixx power banks are a good choice
At Grixx, we develop power banks that are suitable for daily use. Our products combine capacity, safety, and ease of use.
- meet European guidelines;
- are tested for safety and reliability;
- have a good price-quality ratio;
- are suitable for on the go, work, and travel.
This way, you can be sure that you are choosing a large power bank you can rely on.










