Lithium Batteries

Our storage systems have been developed specifically for commercial and industrial applications. That’s why when it comes to TESVOLT products, safety, durability, performance and reliability are top priorities.

TESVOLT exclusively uses high-grade prismatic lithium nickel manganese cobalt oxide cells (lithium NMC) from Samsung SDI, which have thus far been employed in high-quality electric cars.

These cells are designed in such a way that they pose no risks to safety, even in the case of failure or mechanical damage.

Thanks to their above-average number of charge cycles and extremely long service life, our storage systems offer excellent economic efficiency.

The cells can be charged and discharged at 1C on a long-term basis, and even at 4C for short periods (max. 20 seconds).

Our battery cells do not contain environmentally harmful heavy metals and can be recycled. As a matter of course, we offer a take-back scheme for TESVOLT batteries at no additional cost.


  • Reliable, advanced technology
  • Extremely cost-efficient
  • High capacities
  • Long service life of up to 30 years and 8,000 cycles
  • Recyclable
  • High efficiency rating
  • Maximum operating safety
  • Low-maintenance
Technical data TESVOLT battery cells
C-Rate 1C (4C max. 20 sec.)
Cells Lithium-NMC prismatic (Samsung SDI)
Cycles @ 100% DoD | 70% EoL | 23°C +/-5°C 1C/1C 6,000
Cycles @ 100% DoD | 70% EoL | 23°C +/-5°C 0,5C/0,5C 8,000
Efficiency (battery) up to 98%
Operating voltage 44.8 to 58.1V
Operating temperature -10 to 50°C
Humidity 0 to 85% (non-condensing)
Certificates/norms UL 1642, UN 38.3
Warranty 10-year performance warranty, 5-year product warranty
Recycling free take-back scheme from TESVOLT