
Easy stacking: The storage system consists of battery modules that can simply be stacked on top of each other without any external cabling. Depending on the inverter configuration, between three and ten battery modules can be stacked in a single string. Up to four of these battery strings can be DC-coupled to form one complete battery storage system.
We develop and manufacture our battery management system in Germany. By using Infineon chips, we ensure long-term availability while strictly adhering to both functional safety and cybersecurity requirements. Modern IoT technology also enables over-the-air updates and remote service access.
Another advantage: the battery storage system operates without an active cooling or heating system. Ambient temperatures ranging from -17.5°C to +50°C do not affect the TESVOLT TAYTAN. It is suitable for outdoor installation in protected areas, such as under a carport.
A twelve-year performance warranty and up to 15,000 charge cycles provide maximum planning reliability and ensure long-term economic operation.
As a TESVOLT partner, you will find all information about our products and offers in the Partner Portal. If you have any questions about this product or are looking for an installer in your area - we are here for you!

Infineon Cybersecurity Chip from the Automotive Industry
Designed for the highest safety standards. Used in many safety-relevant control systems in the automotive industry, such as active driver assistance systems, autonomous driving, HV controls in the powertrain (BMS, OBC, DC/DC converters) and other safety-relevant assemblies, such as electric steering and braking systems.



The TESVOLT TAYTAN is suitable for a wide range of requirements and offers a high degree of flexibility even after installation. Battery modules can be retrofitted to the stack within 24 months of commissioning. Additional stacks can be retrofitted in parallel connection at any time without restriction.

Suitable for private households to large commercial enterprises and can be installed indoors and outdoors

From 18.75 kWh to 62.5 kWh per stack

4 battery stacks can be connected in parallel to an inverter input without DC/DC combiner

Up to 250 kWh can be connected to an inverter input (max. number / size of stacks depending on the inverter)
With up to 15,000 charge and discharge cycles and up to two cycles per day, the battery storage system delivers exceptional durability and operational flexibility. This makes it ideal for demanding applications and long-term economic operation.
New: Each module guarantees 35.8 MWh of energy throughput, regardless of C-rate or ambient temperatures ranging from -17°C to +50°C across the entire operating range. The system delivers consistent performance under all conditions – compact, efficient, and reliable.

The available applications depend on the energy management system (EMS) used. This may be either the EMS integrated into the inverter or the TESVOLT Energy Manager.
Generation Control
Consumption optimisation via active connection/disconnection of generators depending on the energy generated in grid operation.



3 to 8 Modules
18.75 kWh to 50 kWh
5 to 10 Modules
31,25 to 62,5 kWh
0,48 – 1 C *
9 to 10 Modules
56,25 to 62,5 kWh
0,8 – 1 C *
Single- and multi-string systems expandable up to 250 kWh
(Capacity expansion on a single inverter input without an external DC/DC combiner)
| Property | Specification | |
| Nominal Energy | 62.5 kWh* | |
| Nominal voltage | 832 V | |
| Nominal power battery | 62.5 kW | |
| Energy throughput | 35.8 MWh (100% DoD / SOH 65 % /> -17°C < 50°C/ 1C/ 1C) | |
| Expected cycles | 15,000 (100% DoD / SOH 65 % /> -17°C < 50°C/ 0,5C/ 0,5C) | |
| Optimal operating temperature | 15 °C ≤ T ≤ 30 °C | |
| Operating Temperature (Ambient Temperature) | -20 °C ≤ T ≤ 50 °C | |
| Height | ≤ 3,000 m | |
| Dimension | B 785 mm * T 481 mm * H 1660 mm** | |
| Weight | ≈ 650 kg** | |
| Housing protection class | IP55 | |
| Cooling method | Natural air cooling | |
| Max. number in parallel | 4 Strings | |
| Protection class / surge category | I / II | |
| Certification | IEC62619 / VDE AR 2510-50 / IEC 61010 | |
* Conditions: 25°C Ambient Temperature, 0.3 C ** Based on pre-production sample data
