TESVOLT Lithium Ion Battery Storage

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These high-grade lithium-iron-manganese-phosphate (LiFeMnPO4) batteries are ideal for commercial applications in conjunction with Sunny Island inverters and feature:

  • Dependable, mature technology
  • High capacities up to megawatt-class power stations
  • High cycle durability
  • Recyclable
  • High efficiency
  • Reliable
  • Low-maintenance
  • Manganese content allows high current load over a short period

Ideal for:

  • Self consumption optimisation
  • Peak shaving
  • Emergency power
  • Off-grid systems
TESVOLT Logo Li System Sunny Island

TESVOLT TLC Series

These are ideal for commercial energy storage applications and offer capacities from 120kWh to 960kWh.

Supplied as pre-wired containerised solutions complete with Sunny Island inverters and Multicluster box ready for 'plug-and-play' operation. Containers are designed for outdoor placement and are insulated and air-conditioned to provide a regulated indoor temperature and so can be used worldwide.

They are suitable for use in both on and off grid applications and due to their ability to deliver very high power are suitable for true emergency power and grid back up use.

Can be connected in low voltage systems to various generation units, including photovoltaic plants, biogas, wind turbines, CHPs and hydroelectric power plants

  • Three phase
  • 8,000 cycles to 70% DOD
  • 5,000 cycles to 90% DOD
  • Max. efficiency: 90%
  • Self-discharge: < 3% per month
  • Warranty: battery 10 years; electronics 5 years
  • Made in Germany
TESVOLT TLC Container
TESVOLT TLC Container TESVOLT TLC 120 kWh TESVOLT TLC 250-500 kWh
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Product Code Description Retail Price
(ex VAT)

TESVOLT Li Series

Modular Lithium storage solutions in cabinets designed for small commercial applications. Integrated active battery management system for use with Sunny Island inverters.

Single Phase

Uses one Sunny Island SI-3.0H (2.3kW) to SI-8.0H (6.0kW) and one cabinet from Li-10 (10kWh) up to Li-60 (60kWh)

Three phase

Uses one cluster of three Sunny Islands 3 x SI-3.0H (6.9kW) to 3x SI-8.0H (18.0kW) and up to four cabinets per cluster from 4 x Li-10 (40kWh) up to 4 x Li-60 (240kWh)

By including a Multicluster box, bigger systems are possible of up to 72kW & 960kWh using the MC-Box 12 on-grid or up to 216kW and 2880kWh using the MC-Box 36 off-grid.

  • Modular and expandable
  • 10 year performance warranty
  • 8,000 cycles to 70% DOD
  • 5,000 cycles to 90% DOD
  • Max. efficiency: 90%
  • Working temperature: 0°C to + 40°C
  • Self-discharge: < 3% per month
  • Made in Germany
 Li-10Li-20Li-30Li-40Li-50Li-60Li-120
Nominal capacity 10 kWh 20 kWh 30 kWh 40 kWh 50 kWh 60 kWh 120 kWh
Usable capacity 7-9 kWh 14-18 kWh 21-27 kWh 28-36 kWh 35-45 kWh 42-54 kWh 84-108 kWh
Max. nominal power 6.9 kW 13.8 kW 18.0 kW 18.0 kW 18.0 kW 36.0 kW 72.0 kW
Max. charge current 150 A 300 A 375 A 375 A 375 A 375 A 375 A
Max. discharge current 300 A 900 A 900 A 900 A 900 A 900 A 900 A
TESVOLT Li Series
TESVOLT Li-20 kWh Lithium Battery TESVOLT Li-30-40-60 kWh Lithium Battery TESVOLT Li-120 kWh Lithium Battery TESVOLT Li Series Lithium Batteries On Pallets
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Product Code Description Retail Price
(ex VAT)
LI-10 Li-Ion 10kWh, 48V battery cabinet £11,168.61
LI-20 Li-Ion 20kWh, 48V battery cabinet £20,361.56
LI-30 Li-Ion 30kWh, 48V battery cabinet £28,569.13
LI-40 Li-Ion 40kWh, 48V battery cabinet £36,095.06
LI-50 Li-Ion 50kWh, 48V battery cabinet £40,735.28
LI-60 Li-Ion 60kWh, 48V battery cabinet £49,811.59
LI-120 Li-Ion 120kWh, 48V battery cabinet £92,264.93
Product Code Energy content Usable capacity Max. nominal charge power (DC) Max. nominal discharge power (AC) Weight Dimensions mm (lxwxh)
LI-10 10 kWh 7-9 kWh 4.6 kW 6.9 kW 230 kg 500 x 600 x 1,000
LI-20 20 kWh 14-18 kWh 4.6 kW 13.8 kW 520 kg 780 x 950 x 1,900
LI-30 30 kWh 21-27 kWh 4.6 kW 18.0 kW 640 kg 780 x 950 x 1,900
LI-40 40 kWh 28 - 36 kWh 13.8 kW 18.0 kW 760 kg 780 x 950 x 1900
LI-50 50 kWh 35-45 kWh 13.8 kW 18.0 kW 870 kg 780 x 950 x 1,900
LI-60 60 kWh 42 - 54 kWh 18.0 kW 36.0 kW 990 kg 780 x 950 x 1900
LI-120 120 kWh 84 - 108 kWh 18.0 kW 72.0 kW 1,980 kg 2 x (780 x 950 x 1900)