The Marstek Venus-E V3 is a compact and smart home battery that efficiently stores solar energy and uses it when it yields the most.
Thanks to the integrated AC inverter, you can connect the system directly to the electricity grid – completely plug and play , without an electrician.
The supplied P1 meter automatically connects the battery to your smart meter.
This means that the Venus-E V3 charges and discharges fully automatically: it stores energy when there is a surplus and supplies power back when demand increases.
This way you can easily increase your self-consumption of solar energy and reduce your energy bill.
With a usable storage capacity of 5.12 kWh, the Venus-E V3 offers a powerful solution for households looking to get the most out of their solar panels.
The battery uses LiFePO₄ technology , known for its safety, lifespan and efficiency.
Benefits of the Marstek Venus-E V3
Plug & Play installation: easy via 230 V socket, no electrician required
Smart energy management: automatic connection to smart meter via P1
Powerful storage capacity: 5.12 kWh, ideal for households with solar panels
Safe & sustainable: LiFePO₄ technology with more than 6,000 charge cycles
Weatherproof design: IP65 protection, suitable for indoor and outdoor use
Ease of use: monitoring and control via app, Wi-Fi and Bluetooth
Long lifespan: 10-year warranty
Technical details
Storage capacity: 5,120 Wh (5.12 kWh)
Battery type: LiFePO₄ (lithium iron phosphate)
Rated Voltage: 51.2V (16S)
Rated AC power: 2.5 kW input / 800 W output
Mains voltage: 230 V (187–253 V range)
Mains frequency: 50 Hz
Number of charge cycles: > 6,000 (at 25 °C, 80% residual capacity)
Operating temperature: −20 °C to +55 °C
Storage temperature: −30 °C to +85 °C
Protection degree: IP65
Dimensions: 560 × 690 × 201 mm
Weight: approx. 60 kg
Communication: Wi-Fi, Bluetooth, App control
Protection: Integrated BMS with overvoltage and temperature protection
Certification: CE, RoHS, International Standards (VDE 4105, EN50549)
