• Marstek Venus-E V3.0 5.12kWh
  • Marstek Venus-E V3.0 5.12kWh rear
  • Marstek Venus-E V3.0 5.12kWh left
  • Marstek Venus-E V3.0 5.12kWh right
  • Marstek Venus-E V3.0 5.12kWh app
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Marstek Venus-E V3.0 home battery 5.12 kWh

Price excluding VAT

€1.457,00 EUR
€1.457,00 EUR

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Smart meter choice:

The Marstek Venus-E V3.0 5.12 kWh is the latest generation AC-coupled home battery with plug-and-play installation, dynamic tariffs/AI control, and whole-home backup (with Smart Box). It works with any PV system and is ready for zero-injection/anti-feed-in and capacity control.

Our price now temporarily includes transport for NL and BE.

What's new compared to Venus-E V2

  • More compact & lighter: 430×153×524 mm and approx. 60 kg, easier to place in small spaces.
  • Wired LAN included: in addition to Wi-Fi/BT/RS485, now also an Ethernet port for a stable connection and integration with EMS/Modbus/Open API.
  • Higher practical power: on-grid 800–2.5 kW (selectable per country standard) and backup 2.5 kVA , with 3.5 kVA peak (10 s).
  • Official multi-unit/whole-home backup: up to 3 units per phase (1-phase) and 9 units total in 3-phase with Smart Box.
  • Anti-feed-in / 100% self-consumption with Marstek CT002 and Shelly meter support.

Main plus points

  • Plug and play
  • Universal — compatible with any PV inverter via AC coupling.
  • Expandable — start with 5.12 kWh and scale up to 3 units on 1-phase or 9 units on 3-phase.
  • Safe & robust — LiFePO₄, >6000 cycles @25 °C, IP65, natural convection.
  • Integration — LAN/Wi-Fi/BT/RS485 + Open API/Modbus for external EMS.
Important: A smart meter is required for proper operation. For 1–3 units per phase, one smart meter is sufficient. Select the correct model:
  • Without smart meter – only for replacement/expansion where a compatible meter is already present.
  • With CT002 – for meters without a P1 port, for smart meters with software versions older than SMR5.0, and for Belgium, in accordance with Synergrid approval. Works with current coils. View technical information
  • With CT003 – suitable for smart meters with P1 port (SMR5.0 or higher). View technical information

Technical specifications

  • Storage capacity: 5.12 kWh (51.2 V, 16S) — LiFePO₄, DoD 90%, >6000 cycles (@25 °C).
  • On-grid power: 0.8–2.5 kW (country-specific); Rated input 2.5 kVA; grid 230 V ± (187–253 V), 50 Hz, PF >0.99, THDi <3%.
  • Backup power: 2.5 kVA continuous, 3.5 kVA peak (10 s); 230 V, 50 Hz, THDu <3%.
  • Efficiency (AC battery side max.): >93.5%.
  • Protection/environment: IP65; −20 °C…+55 °C (storage −30…+85 °C); 0–95% RH; max. 2000 m.
  • Mains connection: three-wire Euro plug (16A); Backup connection: Euro contra.
  • Communication: LAN / Wi-Fi / Bluetooth / RS485; Open API/Modbus (for EMS).
  • Dimensions (w×d×h) & weight: 430×153×524 mm; 60 ± 0.5 kg.
  • Standards/certification: EN 50549, VDE 4105, G98, CEI 0-21; battery safety CB 62619; EMC/RED standards.
  • Warranty: 10-year manufacturer's warranty.

Download datasheet (V3.0)

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