TS 48 V
The flexible one

TS 48 V Lithium Storage System

  • Can be flexibly expanded in 4.8 kWh increments
  • Three different rack sizes
  • Optimised for use with the SMA Sunny Island
  • Flexible configuration and expansion possible, even years down the road
  • Built to last 30 years or 8,000 full cycles
  • 1C charging speed
  • Utmost cell technology safety


The TS 48 V lithium storage system offers outstanding flexibility and can be optimally adjusted to suit any application. Its cutting-edge prismatic lithium battery cells from Samsung SDI and innovative technology like the Active Battery Optimizer ensure outstanding efficiency and performance.

The system is designed to last 8,000 cycles or a lifespan of 30 years, guaranteeing excellent cost efficiency. Its modular construction makes exchanging individual battery modules a breeze, and the capacity can be expanded even years later.

With its continuous power of 1C, the TS 48 V storage system can charge and discharge in next to no time, making it ideal for professional use in commercial applications, agriculture and industry.

Current Product Innovations

  • Time of use
  • APU with SD memory card (optional)
  • ABO 2.0 with rack balancing cables that only plug in one way, and break-resistant ribbon cables

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Areas of application

All TS lithium storage systems are suitable for both off-grid and on-grid use and can be flexibly combined with any type of energy generator such as photovoltaic, bioenergy, wind power or diesel generators.

Self-Consumption Optimisation

Use more of the power you generate and cut your electricity costs

Back-up Power

The storage system immediately takes over the power supply in the event of a power outage.

PV-Diesel-Hybrid Optimisation

TESVOLT solutions have the option of making the utility grid available while counterbalancing production and consumption peaks. This keeps diesel generators operating as efficiently as possible to minimise diesel costs.

Off-Grid Power Supply

Create your own power grid independently of energy suppliers, for example by combining a photovoltaic installation and TESVOLT storage solution.

Time of Use

Time-dependent use of functions.

Charging Station Control

Smart interconnection of charging station and central controls via the TESVOLT Energy Manager. This allows charging processes to be digitally recorded and controlled.


Supplying a small power grid with or without connection to a public utility grid; here the battery makes part of the grid available, for example when only a limited grid connection is available.

Forecast-Based Battery Charging

Depending on the weather forecast, curtailment losses from photovoltaic installations are avoided and self-consumption is optimised.

Ancillary Services

Remote control of active and reactive power.

Zero Feed-In

Fulfils the normative guidelines (Germany) stipulating that no power can be fed in to the utility grid.

Direct Marketer Interface

Gives access to direct marketers for the purposes of marketing electricity from renewable energy sources.

Modular Principle

TS storage systems can be flexibly adapted to suit your application. Choose your desired capacity in 4.8 kWh increments. One Active Power Unit (APU) can control up to 16 battery modules. Three different racks are available as housing for up to five, eight or 10 battery modules. The 1-phase or 3-phase connection and the connected load determine the number of battery inverters required.

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Complete System

Number of battery modules 2 3 4 5 6 7 8 9 10
TS 25 (2 – 5 modules) 1300x600x600mm (HxWxD)
TS 40 (2 – 8 modules) 1900x600x600mm (HxWxD)
TS 50 (2 – 10 modules) 2300x600x600mm (HxWxD)
TS Flex (energy as required) Flexibly configure your system according to your requirements.
Energy [kWh] 9,6 14,4 19,2 24,0 28,8 33,6 38,4 43,2 48,0
Capacity [Ah] 188 282 376 470 564 658 752 846 940
Maximum output power 1C
Maximum output current [A] 188 282 376 470 564 658 752 846 940
Maximum short circuit current per APU [A] 1200
Selfconsumption (standby) [W] 3 (without battery inverter)
Weight [kg] 188 222 256 290 374 408 442 496 530
System 1-phase, 3-phase
Protection class IP 20 (indoor use)
System compatibility Sunny Island (SMA Solar Technology AG)

Technical Specifications TESVOLT battery module

Module energy 4.8 kWh
C-rate 1C
Cells Lithium NMC prismatic (Samsung SDI)
Max. charging, discharging current 94 A
Cell balancing Active Battery Optimizer
Cycles @ 100 % DoD I 70 % EoL I 23°C +/-5°C 1C/1C 6000
Cycles @ 100 % DoD I 70 % EoL I 23°C +/-5°C 0,5C/0,5C 8000
Efficiency (battery) up to 98%
Operating voltage 47.6 to 58.1 V DC
Operating temperature -­10 to 50 °C
Humidity 0 to 85 % (non-condensing)
Altitude of installation site < 2000 m above sea level
Weight 34 kg
Dimensions (H x W x D) 163 x 490 x 480 mm
Certificates/standards Cells IEC 62619, UL 1642, UN 38.3
Product CE, UN 38.3, IEC 61000-­6-­1/2/3/4, BattG 2006/66/EC
Warranty 10-year performance guarantee, 5-year system guarantee
Recycling TESVOLT offers free return of batteries from Germany
Battery specification as per DIN EN 62620:2015 IMP47/175/127/[14S]E/­20+60/90
TESVOLT Storage Calculator
Find the optimum storage system for your individual requirements – just like that!

Specification text

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Battery Disposal