Zendure SolarFlow 4000 Mix Pro — All-in-one

Zendure SolarFlow 4000 Mix Pro ZDA2501-gy-eu

Photo from the manufacturer

All-in-one F3 · Flat-sized (3–8 kWh)

Zendure Zendure SolarFlow 4000 Mix Pro

Name: Zendure SolarFlow 4000 Mix Pro
Brand: Zendure
SKU: ZDA2501-gy-eu
Price: 2399.00 EUR
Availability: InStock
Author: JouleSpecs

Manufacturer's list price

2399 € ≈ $2,591

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Sheet on the Zendure website →

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Data from official source

Sheet curated by JouleSpecs — We check every spec sheet against the manufacturer's own documentation: each value carries its source and the date we read it. Published Sept. 22, 2026 · Data verified Sept. 22, 2026

Zendure SolarFlow 4000 Mix Pro is a storage unit that's added to a rooftop solar system, with two ways to receive its energy: in alternating current from the solar inverter already there, like its siblings in the same series, or directly in direct current from the panels, with its own dual MPPT tracker input built for new systems or for anyone redoing the system from scratch. It can return more energy to the home grid than a system within balcony solar limits does, and that share can be increased by having an electrician hardwire it, within what local regulations allow.

It recognizes a power outage on its own and switches to the battery to power the loads connected to its dedicated emergency outlet, both day and night; if the panels connected directly or through the existing inverter are still producing, they keep charging the battery even while the grid is down. What it powers in an emergency is what's plugged into its dedicated outlet, not the home's system.

It also charges and discharges based on the energy price, when the utility makes it known: it draws from the grid or from the sun during the cheapest hours and returns the stored energy when it costs more. It's heavy, and it moves by pushing it sideways on its wheels. It's built for anyone redoing or expanding a rooftop solar system who wants a single device that accepts both new panels and the inverter they already have; anyone looking for a small balcony storage unit with no rooftop solar system of their own needs a different device, built for that scope.

01 · Verified data

Technical specifications

Backup power UPS

Cost per kWh 450,00 €/kWh

midpoint of the estimated range — on nominal capacity

Round-trip efficiency 90 %

Standby consumption Zendure does not state it.

where we looked

Parameter	Value	Source
Weight	80.0 kg (176.4 lb)	manufacturer website
Nominal capacity	8 kWh	Declared by the brand
Continuous output	3680 W	Declared by the brand
Phases	Single-phase	Declared by the brand
Maximum charge power	4 kW	Declared by the brand
Backup power	UPS	Declared by the brand
Switchover time	10 ms	Declared by the brand
Grid charging	Yes	Declared by the brand
Dynamic tariffs	Built in	Declared by the brand
Rated cycles	10000 cicli	Declared by the brand
Capacity at end of cycle life	70 %	Declared by the brand
Warranty	10 anni	Declared by the brand
Round-trip efficiency	90 %	Declared by the brand
Ingress protection	IP65	Declared by the brand
Minimum temperature	-20 °C	Declared by the brand
Maximum temperature	55 °C	Declared by the brand
Grid connection power	3 kW	Declared by the brand
Usable capacity	—	Not declared
Depth of discharge	—	Not declared
Cell chemistry	—	Not declared
Cell supplier	—	Not declared
Expandable	—	Not declared
Maximum expanded capacity	—	Not declared
Battery voltage	—	Not declared
Backup phases	—	Not declared
Black start	—	Not declared
EV charger integration	—	Not declared
Heat pump integration	—	Not declared
Virtual power plant	—	Not declared
Guaranteed throughput	—	Not declared
Guaranteed remaining capacity	—	Not declared
Standby consumption	—	Not declared
SPI index (HTW Berlin)	—	Not declared
HTW test edition	—	Not declared
Mounting	—	Not declared
Cell heating	—	Not declared
Noise level	—	Not declared
Works without internet	—	Not declared
Local control	—	Not declared
Open protocols	—	Not declared
Home Assistant integration	—	Not declared
Where the data is hosted	—	Not declared
Remote updates	—	Not declared
App required for setup	—	Not declared
Declared standards	—	Not declared
Battery passport	—	Not declared
Carbon footprint	—	Not declared
Recycled content	—	Not declared

02 · The numbers

What it really costs

Cost per kWh 450 €/kWh midpoint of the estimated range — on nominal capacity

How we worked it out

price: 3600
nominal capacity: 8

Battery life cycles 3650 cycles warranty years

the manufacturer does not state the guaranteed total energy throughput, which for heavy users is often the limit that runs out first

How we worked it out

stated cycles: 10000
warranty years: 3650

Cost of stored energy 0.137 €/kWh warranty years

the manufacturer does not state the guaranteed total energy throughput, which for heavy users is often the limit that runs out first
on nominal capacity: the manufacturer does not state the usable figure, so the real cost is higher

How we worked it out

price: 3600
nominal capacity: 8
battery life cycles: 3650
round-trip efficiency: 90
energy delivered over the whole life: 26280

Energy density 100 Wh/kg

on nominal capacity: the manufacturer does not state the usable figure, so the true number is lower

How we worked it out

nominal capacity: 8
weight: 80

Power-to-capacity ratio 0.460 C

on nominal capacity: the manufacturer does not state the usable figure, so the true number is lower

How we worked it out

continuous power: 3680
nominal capacity: 8

These numbers are calculated, not stated: they have no source to cite, they have a formula you can redo. The price used is the manufacturer's list price, which is stable and the same in every country — not a shop's price on the day.

03 · Summary

Pros and cons

In favour

It accepts the panels' energy both directly in direct current and in alternating current from the existing solar inverter, without having to choose in advance. source
When power fails it switches to the battery on its own, powering the loads connected to its dedicated emergency outlet.
It charges from the grid or from the sun during the cheapest hours and returns the stored energy when it costs more.
It doesn't need a technical room: it withstands rain and splashes and stays outdoors, as long as it's sheltered from direct rain.

Worth knowing

It can't be moved or mounted alone: it takes an extra pair of hands. source
Above 3 kW fed into the grid it needs an electrician to hardwire it, and local regulations may not allow it.
Emergency power comes out of a single outlet: the home's circuits stay off.

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