Battery Storage
Stromspeicher für Balkonkraftwerk und Haushalt
Ein Speicher nimmt den Solarüberschuss auf und gibt ihn ab, wenn die Sonne nicht mehr scheint. Die hier gelisteten Geräte sind Plug-in-Speicher: Sie werden zwischen Erzeuger und Steckdose gesetzt, ohne Eingriff in die Hausinstallation.
Kapazität, Leistung, Ausbau
Entscheidend sind drei Werte: die nutzbare Kapazität in kWh, die Lade- und Entladeleistung in Watt und die maximale Ausbaustufe. Alle Modelle lassen sich mit Erweiterungsakkus stapeln – ein Basisgerät bleibt dabei zwingend erforderlich.
Nulleinspeisung
In Verbindung mit einem Smart Meter regeln die Geräte die Einspeisung auf null und decken stattdessen den Hausverbrauch.
All-in-one battery with an integrated 800 VA microinverter and four MPPT inputs for up to 2.4 kW of PV output. Expandable to 10.24 kWh, making it the most affordable entry into an expandable Marstek battery.SpecificationsUsable capacity2.56 kWh (expandable to 10.24 kWh)Output power800 VAPV input4 × MPPT, max. 2,400 WCell technologyLiFePO₄ (LFP)Cycles> 6,000IP ratingIP65Warranty10 years
Add-on battery for the Marstek Jupiter C Plus. Up to three modules expand the system to 10.24 kWh. Requires a Jupiter C Plus base unit and cannot be operated without one.SpecificationsCapacity2.56 kWhCompatible withMarstek Jupiter C PlusMax. expansion3 modules (10.24 kWh total)Cell technologyLiFePO₄ (LFP)Cycles> 6,000IP ratingIP65Weight23 kgWarranty10 years
Plug-in battery with 2.24 kWh and two separate PV inputs for up to 1,600 W of module output. Compact enough for a balcony and commissioned without any work on the building's electrical installation.SpecificationsUsable capacity2.24 kWhOutput power800 W (2 × 400 W)PV input2 × 800 W, max. 1,600 WCell technologyLiFePO₄ (LFP)Cycles> 6,000 to 80 % remaining capacityIP ratingIP65Dimensions309 × 175 × 350 mmWeight20 kg ± 0.5 kgWarranty10 years
All-in-one battery with an integrated microinverter and four MPPT trackers. Takes up to 2.4 kW of PV output directly, so no separate inverter is needed. Expandable to 12.72 kWh with up to five add-on batteries and delivers 1.5 kW of backup power.SpecificationsUsable capacity2.12 kWh (expandable to 12.72 kWh)Power1,500 W bidirectional, 800 VA standard outputPV input4 × MPPT, max. 2,400 WBackup power1.5 kWCell technologyLiFePO₄ (LFP)Cycles> 6,000, 80 % remaining capacity after 15 yearsIP ratingIP65Dimensions450 × 340 × 220 mmWeight26 kg ± 1 kgConnectivityWi-Fi, Bluetooth, EthernetWarranty10 years
Add-on battery for the Marstek Venus A. Up to five modules can be stacked, expanding the system to 12.48 kWh. Requires a Venus A base unit and cannot be operated without one.SpecificationsCapacity2.12 kWhCompatible withMarstek Venus AMax. expansion5 modules (12.48 kWh total)Cell technologyLiFePO₄ (LFP)Cycles> 6,000IP ratingIP65Weight19 kg ± 1 kgWarranty10 years
All-in-one battery consisting of separate power and battery modules. 2,500 W charge and discharge power, expandable to 15.36 kWh with up to six battery modules. The modular construction keeps the weight of each unit low during installation.SpecificationsUsable capacity2.56 kWh (expandable to 15.36 kWh)Power2,500 W (2.2 kVA)Cell technologyLiFePO₄ (LFP)Cycles> 6,000 at 25 °CIP ratingIP65Dimensions, power module480 × 320 × 230 mmDimensions, battery module480 × 320 × 115 mmWeight28 kg power module, 19 kg per battery moduleWarranty10 years
Battery module for the Marstek Venus D. Up to six modules give a total capacity of 15.36 kWh. Requires a Venus D power module and cannot be operated without one.SpecificationsCapacity2.56 kWhCompatible withMarstek Venus DMax. expansion6 modules (15.36 kWh total)Cell technologyLiFePO₄ (LFP)Cycles> 6,000IP ratingIP65Warranty10 years
AC-coupled home battery with 5.12 kWh of usable capacity and 2,500 W charge and discharge power. Installed between generation and house grid without any work on the DC side, and stackable to up to three units (15.36 kWh). Combined with a smart meter, the system regulates for zero feed-in.SpecificationsUsable capacity5.12 kWh (stackable to 15.36 kWh)Charge / discharge power2,500 WCell technologyLiFePO₄ (LFP)Cycles> 6,000 at 25 °C, then 80 % remaining capacityIP ratingIP65Operating temperature−20 °C to +55 °CDimensions480 × 153 × 624 mmWeight60 kgWarranty10 years
Compact plug-in battery with 2 kWh for balcony solar systems. Bidirectional 1.5 kW power stage with 800 W standard output. With over 10,000 charge cycles, the longest-lasting battery in the Marstek range.SpecificationsUsable capacity2.0 kWh (2,009.6 Wh)Power1.5 kW bidirectional, 800 W standard outputCell technologyLiFePO₄ (LFP)Cycles> 10,000 at 25 °CIP ratingIP65Operating temperature−20 °C to +60 °CDimensions386 × 450 × 105 mmWeight22 kgWarranty10 years