Marstek Venus E 4.0 Plug & Play Home Battery | 5.12kWh | 3000W | 314Ah LiFePO4 | 10000 Cycles | 10-Year Warranty
Original price was: £1,499.99.£1,349.99Current price is: £1,349.99. Save 10% online · trade saves 30–50%
In stock — order by 2pm for next-working-day dispatch.
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Authorised UK stockist of Marstek — genuine units, full manufacturer warranty.
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Description
The Marstek Venus E 4.0 represents a step-change in plug-in home battery performance. Delivering 3kW bidirectional power and using premium 314Ah LFP cells rated for 10,000+ cycles, the E 4.0 is the best-value home battery at this capacity tier. At 45kg in a compact 480×624×153mm chassis, instant sub-10ms backup switching protects your entire home circuit. Built-in AI energy management connects to dynamic tariff providers, automatically charging when electricity is cheapest and discharging at peak rates. Expandable to 15kWh / 9kW via SmartBox parallel operation. Below 30dB — quieter than a conversation. Currently sold out at all UK retailers.
- Capacity: 5.12kWh | Expandable to 15kWh / 9kW (3 units)
- Output: 3,000W bidirectional AC | Backup: 3,000W
- EPS backup switchover: <10ms | <30dB operation
- 314Ah LiFePO4 cells | 10,000+ cycles | 15+ year lifespan
- IP65 | Operating temp: -20°C to +60°C
- Dimensions: 480 × 624 × 153mm | Weight: 45kg
- AI tariff optimisation | Smart EV charging | VPP ready | 10-year warranty
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