Marstek VENUS D ESS | Inverter + Battery | Full Set
- Plug & Play — Installation in Just 5 Minutes
- 4 MPPT for Max. 4000W Solar Input
- 2200W Bidirectional Power
- 2200W Backup Power, Peak at 2500W
- Flexible Expansion up to 6 Units & 15.36kWh
- EPS < 15ms
Regular price
From HK$13,800.00
Regular price
Sale price
From HK$13,800.00
(-0%)
Unit price
per
HK$13,800.00
Adaptive Energy Storage Unit
Number of Energy Storage Unit
Total Capacity of the Product
Life Cycle
Battery Type
Depth of Discharge
Battery Capacity
MST-E2.5ST-D
6pcs (Max.)
2.56kWh ~ 15.36kWh
> 6000 (25°C )
LiFePO4
90%
50Ah
Maximum Input Power
MPPT Operating Voltage Range
Maximum Input Current (Single Channel)
MPPT Track Number
MPPT Efficiency
4kW
25V ~ 55V
32A
4
99.80%
Rated Output Power
Peak Output Power
Rated Output Voltage
THDu (Linear Load)
2.2 kVA
2400 VA, 60s
230 V
< 3%
Rated Output Power
Working Phase
Rated Grid Voltage
Rated Grid Frequency
Rated Grid Output Current
Power Factor
THDi
2.2 kVA / 0.8 kVA & 2.2 kVA
L / N / PE
230 V
50 Hz
9.57 A / 3.48 A & 9.57 A
> 0.99 (default), 0.8 lagging... 0.8 leading (adjustable)
< 3%
Ambient Temperature Range
Relative Humidity
IP Level
Cooling Method
Maximum Altitude
Grid Connection
Photovoltaic Connection
Off-grid Port
Display
Communication
-20 °C ~ 60 °C (Storage -30°C ~ 85°C
0 ~ 95 %
IP65
Natural Cooling
2000 m
BC01
MC4
UK Socket
LED
Bluetooth, Wi-Fi & RS-485, EtherNet
2.2kW bidirectional AC flow lets you charge when rates are low, and power your home when they rise.
Ultimate Power Flow with
4 MPPTs intelligently track multiple PV strings—maximizing output from every roof, every angle, every hour, with up to 99.8% efficiency.
Stay powered during outages. 2.2kW for essentials, 2.5kW peak when you need it most.
Leading EPS switches power in less than 15ms to keep essentials running.
Superior Compatibility, Seamless
Plug in, power on—live in minutes, zero hassle.
Stack design from 2.56kWh to 15.36kWh, tailored to your needs.
Your Whole Home,
Power your entire home by linking multiple MARSTEK VENUS D modules with the SmartBox.
up to 6.6 kW / 46.08 kWh on single-phase or
19.8 kW / 138.24 kWh on three-phase.
Solar powers your home first, with any excess stored instantly.
AI schedules smart charging during off-peak hours, while the Smart Meter ensures nothing is wasted.
From day to night, your energy flows efficiently—no feed-in, no interruption.
Energy, Perfected by
MARSTEK VENUS D makes your energy smarter. By learning from your location, weather, and energy usage, it predicts how much solar energy you'll have each day. It then adjusts your system to use that energy wisely, saving you money and reducing waste.
Supreme Anti Feed-In Efficiency with
Real-time load tracking ensures every extra ray is stored, not wasted. It knows when your home needs more—and when to save the rest, maximizing self-consumption effortlessly.
Total Energy Control with
MARSTEK App monitors battery health, tracks real-time energy flow, and lets you set schedules, wattage limits, and automation rules.
From solar surplus to peak pricing, it adapts to your needs.
Apple - App Store
Google Play
Built to Endure, over 6000 Cycles Strong
With automotive-grade LFP cells, MARSTEK VENUS D offers 6000+ cycles with 80% capacity retention over 15+ years. Backed by a 10-years warranty and ongoing support, it delivers long-lasting, safe, and efficient performance.
Multiple Connectivity, Complete Insights
Stay connected your way — Bluetooth, Wi-Fi, or Ethernet.
With added Ethernet support, VENUS D keeps your system stable and your data perfectly safe, even when Wi-Fi fluctuates.
Rated from -20°C to 60°C, performance remains reliable from freezing cold to scorching heat, ensuring safety and efficiency in all conditions.
Built Tough with
Fully protected against dust and water, the IP65 rating ensures reliable performance in all weather conditions, keeping your system safe and efficient year-round.
Create Your Custom Energy System with
Open API enables effortless integration with third-party EMS, offering real-time data exchange and customizable strategies for a flexible, scalable smart energy eco system.
Certifications & Standards
What press say...
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This device focuses on what you really need in everyday life – a large storage capacity at a low price. An inverter is already integrated. All you need are the solar panels.
Peter Hryciuk
Customer
-
The device can even operate without an app. It features a touchscreen display that allows you to define the feed-in power according to schedules.
Kai Schmerer
Reporter
-
Thanks to four MPPT inputs, this enables the use of up to 4 kW of solar energy.
Marcus Schwarten
Senior Tech Writer
-
Marstek promises annual electricity cost savings of up to €1,797 through AI-supported time-use management and anti-feed-in technology.
Thommy
Autor
-
It fits existing balcony solar installations and can be charged extremely quickly using grid energy – practical in combination with dynamic electricity tariffs.
Julia Struck
Senior Editor
FAQ
Q1: What type of battery do MARSTEK products use?
A: Marstek products utilize high-quality Lithium Iron Phosphate (LiFePO₄) batteries. These batteries support over 6,000 charge-discharge cycles, with a design lifespan exceeding 10 years while retaining over 80% of their original capacity, ensuring long-term reliability.
Q2: Are Lithium Iron Phosphate batteries safe?
A: Yes, they are highly safe. Marstek employs self-developed Grade A LiFePO₄ cells with a thermal runaway threshold above 270°C, fundamentally enhancing safety. All batteries undergo rigorous tests, including nail penetration and compression, to prevent combustion or explosion during use.
Q3: Does MARSTEK offer warranty and after-sales services?
A: Absolutely. Marstek provides comprehensive support, including a 5-year worry-free after-sales service and an extended 10-year manufacturer warranty, ensuring peace of mind throughout the product lifecycle.
Q4: How do I register a MARSTEK product?
A: To streamline service, we recommend registering your product via the official Marstek mobile app after purchase for seamless activation and support.
Q5: How is shipping calculated?
A: For orders within Hong Kong totaling HKD 100 or more, shipping is free. Currently, we do not offer international shipping.
Note: Deliveries to remote areas (e.g., outlying islands) or locations requiring special handling (e.g., stair climbing) may incur additional fees. Please contact us in advance for details
Q6: What is the return and exchange policy?
A: We stand by our product quality. If you identify any non-human-caused quality issues within 7 days of delivery, contact us immediately.
Our team will verify the situation and arrange for a replacement, return, or refund as needed.