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Energy storage AC coupling emergency power capable for new and existing plants.

system data:

Complete system nominal capacity 6.5 kWh including battery module 1x 6.5 kWh,

Battery: Lithium nickel manganese cobalt oxide (NMC), depth of discharge 90%;

Safety: Multi-level, hardware- and software-redundant cell monitoring

Max. AC power charge / discharge 2.2 / 1.8 kW; integrated 3-phase battery inverter and power electronics

Rated current emergency power operation 5.8 A per phase; overload emergency power operation max. 12 A per phase; switchover time emergency power operation < 90 seconds

Protection class IP22, mains connection 400 V AC, 3-phase phase-symmetrical, 50 Hz (TN and TT networks)

Cooling: temperature-dependent fan control

Noise emission typical/max.: 42 dBA / 49 dBA

Installation inside the house, ambient temperature +5 degrees to +30 degrees

System warranty: 10 years (permanent internet connection), 5 years (without internet connection)

Battery cell warranty: Warranty: 10 years or 4,000 cycles (remaining capacity 80%, see manufacturer’s warranty for details).


Energy management system EMS VS-Pro 2, power recording via current sensor (included in delivery)

Visualization of production data and dynamic active power limitation via Sunspec

Visualization via VARTA Storage App for Android and iOS, web portal and local web server.

Hardware interfaces: RJ45 (Ethernet), 2x RJ12 (current sensor + PV sensor).

Smart Home interfaces: XML, Modbus TCP, Sunspec

Switching contacts for load and generator control (Rutenbeck TCR IP 4)

Backup power functionality incl. automatic switching and black start (via separately available VARTA emergency power box)

Certifications and directives:

CE conformity, Low Voltage Directive 2014/35/EU, EMC Directive 2014/30/EU, UN 38.3, DIN EN 62109-1:2011,

VDE-AR-N 4105:2018-11, TOR generator type A V1.1


Number of phases

Quantity of kWh


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Out of stock