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SolarFlow 4000 Mix AC+ — Zendure
8 kWh stored, 4 000 W delivered : store your solar production, reduce your bill by up to 91 % and benefit from an automatic backup power supply.
Universal AC coupling · Expandable to 50 kWh · 10-year warranty
Integrated 8 kWh energy storage
Expandable up to 50 kWh
4 000 W — 5 000 W via PV-IN
10 000 cycles — 15 years
Savings of up to 1 250 €/year
IP65 — -20°C to +55°C
4 000 W + dedicated PV-IN port
4 kW via a standard socket, 5 kW when your PV inverter is connected through the dedicated port — ideal for households consuming more than 5 000 kWh/year.
Expandable from 8 to 50 kWh
Start with the integrated 8,038 kWh, then add up to 6 7 kWh batteries without replacing the main unit.
10 000 cycles — LCOS 0,20 €/kWh
Cells certified for 10 000 cycles at 70 % SOH, providing 15 years of service. The real cost per kWh delivered is half that of 6 000-cycle solutions.
ZENKI™ AI — 840+ suppliers
AI automatically optimises charging during off-peak hours and discharging during peak hours — up to +73 % efficiency vs CT mode.
Automatic backup 3 680 W / 7 200 W peak
Switches over in 10 ms. Continues producing solar energy even during a grid outage via the PV-IN AC port.
IP65, wheels, Home Assistant
Deployable indoors or outdoors, on swivel wheels. Compatible with MQTT, HEMS 2.0, Shelly and Homey. 10-year manufacturer warranty.
Why choose this system ?
1
ROI in 3,32 years
1 250 €/year in estimated savings — your electricity is free for the following 12 years.
2
Compatible with all inverters
Huawei, SMA, Fronius, Enphase… AC coupling eliminates all DC rewiring. Fast commissioning.
3
Never obsolete
Automatic OTA updates, scalability up to 50 kWh, HEMS 2.0 integration for heat pumps and EV chargers.
Take it further
Savings
Your bill drops from the very first month
ZENKI™ AI analyses your consumption habits and your supplier’s tariffs in real time. It stores energy produced during the day, releases it during peak hours and automatically selects dynamic tariffs — up to 91 % bill reduction in the Zendure 2026 reference configuration.
Estimated 1 250 €/year
-91 % on your bill
840+ suppliers
Installation
Connects to your existing installation without DC rewiring
The SF4000 Mix AC+ connects directly to the electrical panel (or to a wall socket up to 3 000 W) without modifying your DC wiring. The dedicated PV-IN AC port accepts the output of your existing PV inverter — Huawei, SMA, Fronius, Enphase — in just a few minutes.
Universal AC coupling
Socket or electrical panel
Terminal block included
Scalability
A system that grows with your needs
Unlike the SF3000 Mix AC+, limited to its internal 8 kWh, the SF4000 is expandable. Add 7 kWh batteries whenever you wish — without changing the main unit. The dedicated DC connection port is already integrated.
8 → 50 kWh
6 optional batteries
Integrated DC port
Performance
90 % round-trip efficiency — 5 points more than the competition
For 100 kWh charged from your panels, 90 kWh are effectively delivered. The LCOS of 0,20 €/kWh is half that of 6 000-cycle solutions. The 7 200 W peak power in off-grid mode handles the start-up loads of pumps, washing machines and ovens.
RTE 90 %
0,20 €/kWh LCOS
7 200 W peak
Your estimated return on investment
System price2 399 €
Estimated annual savings1 250 €/year
Electricity bill reductionup to 91 %
Service life (10 000 cycles)15 years
Cost per kWh delivered (LCOS)0,20 €
Estimated payback period~ 3,32 years
Savings over 15 years+ 16 350 €
Your questions answered
« What is the difference between the SF4000 and the SF3000 Mix AC+ ? »
Three key differences : power increases from 3 000 W to 4 000 W (5 000 W via PV-IN), the SF4000 adds a dedicated PV-IN AC port that maintains solar production even during a grid outage, and it is expandable up to 50 kWh whereas the SF3000 is limited to its internal 8 kWh. The SF4000 is designed for households consuming more than 5 000 kWh/year.
« Can I connect my existing PV inverter (Huawei, SMA, Fronius) ? »
Yes. AC coupling is compatible with all inverters on the market. You can connect the PV inverter via the dedicated PV-IN AC port (5 000 W max., production maintained during an outage) or via your distribution panel. No DC rewiring is required.
« Do I need an electrician for the installation ? »
When connected to a Schuko socket, power is limited to 3 000 W and no intervention is required. To reach 4 000 W, a connection to the electrical panel via a circuit breaker ≥ 25 A is required — the terminal block is included in the box. Our team is available on 04 83 58 04 79 to assist you.
« 2 399 € is a lot — is it really worth it ? »
With estimated savings of 1 250 €/year, this system pays for itself in 3,32 years. During the following 12 years, the electricity you consume from your battery costs 0,20 €/kWh instead of 0,275 €. Over 15 years, total estimated savings exceed 16 000 €.
Technical specifications
| Poids | 82 kg |
Documents & Guides
Kit Solaire support
Need advice about this product?
Our technical team is here to answer all your questions and support your solar project.
Mon-Fri 9am-6pm | Sat 9am-1pm
| Type de configuration | Tête tout-en-un seule |