Tested under extreme conditions for maximum safety.

With the Battery flex, you can significantly increase the independence and self-consumption of your household. Surplus energy is stored and is then available to you.
With the Battery flex, you can significantly increase the independence and self-consumption of your household. Surplus energy is stored and is then available to you.

Tailor-made energy storage. 

Battery flex energy storage offers the right amount of storage for every size and type of system. You can easily expand the capacity of your Battery flex if your household needs more. 
Graphic memory expansion Battery flex
*System details: 4-person household in a new building (approx. 145 m²) with heating based on a heat pump system, including an e-car with an annual mileage of approx. 15,000 km with various modules combined with 3 battery sizes. The building is located in Munich, Germany, on a south-facing roof at a 35° angle, calculation via PV Sol.

BMW and Solarwatt: Partners focused on quality.

In BMW we have found the perfect partner to develop and manufacture a home energy storage system using automotive cells. These products are designed to meet high expectations in terms of function, performance and quality.
  • Highest quality standards
  • Environmentally friendly manufacturing
  • Highly efficient
Batteries with brainpower.
Our Battery flex storage systems use BMW cell modules, supported by our many years of experience in home energy storage systems for maximum peace of mind.
  • Security
  • Expertise
  • Made in Germany
Clean energy has a home:
Yours.

The crowning glory.
The top pack securely seals the top of the Battery flex storage system. This means you can use it outside just as easily as indoors.
A flexible
high-performer.
The middle pack’s highly modular nature allows you to customize the design of your system. This avoids you spending money on storage you don’t need. And if you find you need more later, you can just add it on.

The base.
The base is the backbone of the Battery flex system. It connects the energy storage with your household’s power network. It also provides cooling for the other modules.

All the energy, flexibility, and independence you need.

New model
Solarwatt Battery flex
Battery flex
With the SOLARWATT Battery flex, you can consume even more of your self-generated, clean energy yourself, even during power outages. This makes you even more independent of your grid provider and the current solar radiation.
  • [eco] Up to 80 % self-sufficiency
  • [size] Storage size is modularly expandable
  • [yield] Electricity security around the clock
  • [yield] Overview and control via app

A few more impressive details:

Get the right storage solution for your home.