A safe home starts with energy.
An energy storage you just plug into an outlet.
No installation. No rewiring. Ready to go in minutes.
Trusted by homeowners
Join the growing community of MARSTEK Venus E 3.0 owners
“Highly recommend!”
“Simple installation, solid build and zero issues. Highly recommend!”
“Excellent workmanship, intuitive app.”
“During a blackout I was 2 days without power. Not a pleasant experience with 2 kids. Buying Venus will protect me from unpleasant surprises with future outages.”
“Highly recommend!”
“Simple installation, solid build and zero issues. Highly recommend!”
“Excellent workmanship, intuitive app.”
“During a blackout I was 2 days without power. Not a pleasant experience with 2 kids. Buying Venus will protect me from unpleasant surprises with future outages.”
Everything you need
Advanced technology in a compact package.
Plug into a regular 230V outlet and start using it within minutes.
More usable energy — minimal conversion losses.
Sufficient capacity for a full day of energy independence.
The system learns your habits and optimises consumption automatically.
Full protection against dust and water. Indoor and outdoor installation.
Silent operation — full comfort.
Built to last
LiFePO4 cells — the most durable chemistry in home energy storage.
Power what matters most
With 5.12 kWh of capacity, the Venus E 3.0 keeps your essentials running.
Fridge
8 days non-stop
0.6 kWh / day
Lighting
85 h of light
60 W
Cooking
2 h non-stop
1–2 hobs (~2 kW)
Kettle
40 boil cycles
2200 W
Vacuum cleaner
4.5 h non-stop
850 W
Boost your power
Compact next-generation home battery with LiFePO4 technology.
Control at your fingertips
Control at your fingertips
Manage your battery with the MARSTEK app. Monitor, control and optimise — wherever you are.
Real-time monitoring
Track production, consumption and battery status live.
Charge scheduling
Set automatic charging when electricity is cheapest.
Remote control
Manage your system from anywhere in the world.
Smart alerts
Notifications for faults, full charge and savings milestones.
AI management
AI analyses your consumption and energy prices to build the most cost-effective charge and discharge plans.
Technical specs
Detailed specifications for the Venus E 3.0
Battery
Frequently asked questions
Answers to the questions we hear most often
Installation is straightforward, but we recommend using a qualified electrician. The system ships with a comprehensive manual and all the mounting hardware you need.
With a 5.12 kWh capacity and an average household draw of around 500 W, the battery provides roughly 10 hours of backup. A fridge can run for up to 8 days, and LED lighting for up to 85 hours continuously.
Yes. The Venus E 3.0 automatically switches to off-grid mode during a power cut, delivering seamless, uninterrupted power to your connected devices.
The product comes with a 10-year manufacturer warranty. The LiFePO4 cells retain over 80% of their capacity after 6,000 charge cycles — that translates to more than 15 years of use.
Absolutely. The system is fully modular. You can connect up to 3 Venus E 3.0 units for a combined 15.36 kWh of storage and 7,500 W of continuous output.
The Venus E 3.0 is compatible with any solar PV installation. It supports PV input up to 1,500 W and works with popular energy meters including Shelly, HomeWizard and everHome.
Start saving
from day one
Join the growing community of MARSTEK Venus E 3.0 owners and gain full energy independence — backed by a 10-year warranty.
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