Mobile battery

A mobile battery makes it possible to use reliable power anywhere without emissions of CO₂, nitrogen or particulate matter. Whether you work on a construction site, organize an event or need emergency power: with mobile battery energy storage you always have a sustainable, quiet and efficient solution at hand. This allows you to avoid the use of polluting generators and meet the increasingly stringent requirements around working without emissions. Want to know more about smart applications? Read our article on alternatives to generators.

Bob Hermans

Bob Hermans

18/9/2025
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Table of contents

What is a mobile battery?

A mobile battery is a portable unit for battery power storage. The system stores energy in powerful lithium-ion batteries and delivers it when you need it. Thanks to the plug-and-play design, our solutions can be deployed quickly, without complicated installation. This makes a mobile battery ideal for temporary projects or situations where you have no or insufficient grid connection. Want to know how this connects to larger systems? Find out more in our blog on energy storage systems.

Benefits of on-site battery energy storage

The benefits of a mobile battery are immediate. You operate completely emission-free, contributing to a cleaner living environment. In addition, operation is virtually silent, which means less inconvenience for employees and local residents. It also has financial benefits: you save on fuel costs, avoid fines for exceeding emission standards and manage peak power more intelligently. This fits perfectly with current challenges such as grid congestion and peak voltage.

How does battery power storage work in a mobile unit?

A mobile battery flexibly captures the demand for power and can be combined with different energy sources. Thus, you always work efficiently and reliably, regardless of the situation:

  • Electrical equipment: easily charge cranes, excavators and other electric construction equipment.
  • Solar panels or wind: store renewable energy directly in the battery and use it later.
  • Hybrid deployment: combine the battery with a generator for backup or longer autonomy.
  • EMS (energy management system): prevent overloading and optimally coordinate supply and demand. Want to know more? Check out our article on energy management system.

Thanks to these smart technologies, you are assured of reliable energy storage that is easily scalable, from small projects to large-scale applications.

When do you choose a mobile battery?

A mobile battery is ideal in situations where flexibility and sustainability come together. Think of construction sites without a fixed connection, events that require a lot of power temporarily, or emergency situations where a reliable backup is essential. A mobile battery also offers immediate relief for businesses experiencing grid congestion or peak loads. Also discover how a mobile battery is used in a variety of industries.

Why Frax for mobile battery energy storage?

At Frax, we distinguish ourselves through innovative plug-and-play solutions that completely take the worry out of your hands. Our mobile batteries are available in different versions such as indoor, cabinet and container, including the robust battery container. Combined with our powerful inverters and smart EMS systems, you always get a customized solution. In addition, you benefit from expert service, installation advice and a reliable partner for all your projects. Want to know more about the business benefits? Read our article on business battery.

Ready for emission-free battery power storage?

Do you want to switch to sustainable and flexible energy solutions? With Frax you choose mobile battery energy storage that is easy to deploy, operates completely emission-free and helps you save costs. Whether you have a construction site, event or emergency facility, we offer the right solution. Contact us today and find out how Frax helps you with energy solutions that are ready for the future.

This post was last updated on: 

14/9/2025

Bob Hermans

Founder & CEO

After being active in the energy market for more than a decade, I decided to found Frax in 2023. With Frax, I want to support installers with smart, plug-and-play battery storage systems that really make a difference. My passion lies in renewable energy and innovation, and I believe that simple, reliable solutions are the key to a future with more efficient energy use.

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