Technology that can do more

This is the future

The specific properties of the individual components determine the performance, service life and safety of a storage system. That’s why we only use the highest-quality components, such as the prismatic high-performance cells from our partner Samsung SDI. For our A and E series products, we have also developed particularly efficient battery control systems for charging and discharging the individual cells.

In the A series, the TESVOLT Active Battery Optimizer (ABO) enhances performance and longevity, while in the E series, the TESVOLT DynamiX Battery Optimizer (DBO) combines maximum power with high efficiency. In direct comparison, the A series stands out as particularly flexible, due to its modular design and wide range of expansion options.

All the benefits at a glance

Our components

To make things simpler, we have broken down the construction of our TESVOLT battery storage systems into three categories:

  • Physical components that make up the battery system
  • Battery management components that optimise performance
  • Energy management applications for controlling and monitoring the storage system and connected systems (e.g. charging points, photovoltaic installations, combined heat and power units, etc.)


Each TESVOLT system consists of several prismatic battery cells that are connected within individual modules. Each module contains a balancing-system, which controls and monitors the charging and discharging of each individual cell. Depending on the overall size, the combined systems are installed in either cabinets or containers.

Battery cells

We only use lithium NMC cells from SAMSUNG SDI, which offer unique performance in terms of their calendar and cyclic lifespan. The prismatic design also makes them highly stable and thus extremely safe. Their high energy density makes them very powerful, and they boast a recycling rate of over 90%.

Battery modules

A module consists of either 14 or 22 battery cells connected in series and two touch-proof, high-voltage plug-in contacts. Plastic covers on all sides protect the module from mechanical influences. An integrated ABO/DBO directly controls the state of charge of the cells, which ensures particularly high efficiency of up to 98% for TESVOLT battery storage systems.

Active power unit (APU)

The APU is the built-in battery system protection at cell and module level and is part of the battery management system. It enables communication with the other devices in the system. The APU also monitors the safety of the battery system as well as the state of charge and the ageing of the batteries.


Our cabinets and containers protect the battery system against mechanical influences, with containers offering additional protection against wind and weather. The robust metal body secures all the technology within a small footprint and – depending on the design, application and location – also provides active or passive cooling.


The battery management of the TESVOLT storage systems includes various hardware and software solutions that monitor and protect both the condition and the function of the individual components of the battery system. They enable communication within and with the system, optimise functional processes, form integral components of the safety concept and offer the user full transparency in relation to performance data and limit values.

BATMON battery monitoring

All our storage systems can be monitored continuously using BATMON software. This software visualises the status of the entire system, all battery modules and each individual cell. Our system also displays the voltage, state of health (SOH) and state of charge (SOC). This allows users to detect and correct any deviations and defects promptly.

Active Battery Optimizer (ABO)

For our A series storage systems, each battery module is fitted with an ABO, which controls and monitors the charging and discharging of each individual cell through powerful active balancing. This maximises efficiency, extends the lifespan of each cell and gets the maximum capacity out of each module.

DynamiX Battery Optimizer (DBO)

The second balancing system in our E series is the DynamiX Battery Optimizer (DBO), which is based on resistance balancing. Each filter fan of the battery module is integrated in the balancing system to enhance cell balancing performance. Module and cells are actively cooled and the cells are kept at an identical voltage level. Reducing the thermal load maximises the lifespan of the cells.


All energy flows can be recorded, controlled and monitored with the innovative TESVOLT energy management system, which consists of the TESVOLT Energy Manager and the myTESWORLD portal. With a variety of individual setting options, you can combine a wide range of applications to perfectly adapt the system to any requirement. You can combine different installations in the myTESWORLD portal, such as mapping of microgrids or virtual power plants (sector coupling). This results in optimal coordination of generation and consumption in an integrated approach. The EMS is available as a free Basic version or as a fee-based Pro version with valuable additional functions such as minute-by-minute data evaluation for even greater transparency, or multi-use functions.

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TESVOLT Energy Manager

The TESVOLT Energy Manager is a central unit within the energy management system. It can be integrated locally in the meter cabinet or via the TESVOLT Backup Control Box, and it controls all connected generators and consumers while also recording all relevant data and optimising energy flows.

myTESWORLD portal

You can access our portal via your web browser. It offers various functions for monitoring and controlling energy flows. They are available in both a free Basic version and a fee-based Pro version, corresponding to the associated areas of use.

  • Live dashboard
  • Overview of power consumption and generation
  • Detailed breakdown of consumption and generation
  • Energy balance
  • Metering data history
  • Energy reports and detailed meter readings (may not be used for billing purposes)
  • Charging point management (prioritisation, energy supply)