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Marstek Venus E Mini plug-in AC battery storage system 2 kWh 1.5 kW LiFePO4 wall-mounted
The Marstek Venus E Mini is the thinnest plug-in storage system in the range: only 105 mm thick and 22 kg for 2 kWh of capacity and a 1.5 kW bidirectional inverter. It mounts on the wall and AC-couples to the household grid in minutes, with no DC-side work and no need to replace the existing solar inverter, with which it stays 100% compatible.
It is made for balconies, garages and flats where space is tight, and for anyone who wants to start storing with a small but expandable size: two units reach 4 kWh and 3 kW with the single-phase SmartBox. The backup socket delivers 1.5 kVA continuous with EPS switchover in under 15 ms, the LiFePO4 cells exceed 10,000 cycles and the built-in BMS provides six layers of protection. IP65 rated and operating from -20 to +60 °C.
Key features
Technical specifications
| Feature | Value |
|---|---|
| Product code | Venus E mini |
| Rated capacity | 2.0096 kWh (314 Ah × 2S) |
| Battery rated voltage | 6.4 V |
| Cell chemistry | LiFePO4 |
| Cycle life | > 10,000 cycles at 25 °C |
| Depth of discharge (DoD) | 90 % |
| AC input power (charging) | 1.5 kW |
| AC output power | 0.8 kW standard / 1.5 kW (Premium version) |
| Grid voltage and frequency | 230 V, 50 Hz |
| Maximum input current | 6.52 A |
| Backup power | 1.5 kVA continuous, 1.8 kVA peak for 60 s |
| EPS switchover time | < 15 ms |
| Maximum efficiency (battery to AC) | > 88 % |
| Power factor | > 0.99 (adjustable ±0.8) |
| Harmonic distortion (THDi / THDu) | < 3 % |
| Ingress protection | IP65 |
| Protection class | I (overvoltage category DC II / AC III) |
| Operating temperature | -20 °C to +60 °C (storage -30 °C to +85 °C) |
| Communication | Bluetooth, Wi-Fi |
| Expandability | Up to 2 units: 4 kWh and 3 kW with single-phase SmartBox |
| Dimensions (L×D×H) | 386 × 450 × 105 mm |
| Weight | 22 kg |
| Mounting | Wall-mounted |
| Warranty | 10 years |
Documentation
PDFMarstek Venus E Mini - Product Introduction (PDF)Official manufacturer documentPDFMarstek Venus E Mini - Brochure (PDF)Official manufacturer documentInstallation and wiring must be carried out by qualified personnel in accordance with the applicable standards and the electrical design of the system.