Photo from the manufacturer
Zendure Zendure SolarFlow 2400 AC
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SolarFlow 2400 AC is a control unit with no battery of its own: it has no panel inputs and doesn't store energy on its own, but it reads how much an existing rooftop solar system produces and how much the home consumes, and exchanges the difference with the grid through its cable with a Schuko plug. All the capacity comes from a dedicated satellite battery that attaches under the control unit: the manufacturer's store doesn't sell this model without at least one battery, and up to six can be connected in series.
A dedicated outlet stays powered even when the grid goes down, but it has to be enabled from the app before it's needed, and turned off again afterward. It withstands operating temperatures up to sixty degrees, which matters for anyone installing it on a south-facing balcony in full summer.
It mounts on a wall with the included brackets. Without the app and an account, it never gets to its first startup. It's the choice for anyone who already has panels on the roof and wants to recover the energy that today goes to waste, factoring in buying the battery together with the control unit.
JouleSpecs Awards
Most capable Outlet-sized (up to 1 kWh) · Modular
Highest technical score among the 5 sheets in the Modular category (outlet-sized tier): 67/100.
How we assign awards →Technical specifications
| Parameter | Value | Source |
|---|---|---|
| Weight | 10.12 kg (22.3 lb) | manufacturer website |
| Cell chemistry | LFP (lithium iron phosphate) | Declared by the brand |
| Expandable | Yes | Declared by the brand |
| Maximum expanded capacity | 17.28 kWh | Declared by the brand |
| Battery voltage | 48 V | Declared by the brand |
| Feed-in limit | 2400 VA | Declared by the brand |
| Grid charging | Yes | Declared by the brand |
| Maximum charge power | 2.4 kW | Declared by the brand |
| Backup power | EPS (brief interruption) | Declared by the brand |
| Backup output | 2400 W | Declared by the brand |
| Rated cycles | 6000 cicli | Declared by the brand |
| Ingress protection | IP65 | Declared by the brand |
| Mounting | Wall mounted | Declared by the brand |
| Minimum temperature | -20 °C | Declared by the brand |
| Maximum temperature | 60 °C | Declared by the brand |
| Cell heating | Yes | Declared by the brand |
| App required for setup | Yes | Declared by the brand |
| Declared standards | CE | Declared by the brand |
| Usable capacity | — | Not declared |
| Depth of discharge | — | Not declared |
| Cell supplier | — | Not declared |
| Inverter included | — | Not declared |
| Maximum solar input | — | Not declared |
| MPPT trackers | — | Not declared |
| Dynamic tariffs | — | Not declared |
| Switchover time | — | Not declared |
| Capacity at end of cycle life | — | Not declared |
| Warranty | — | Not declared |
| Guaranteed throughput | — | Not declared |
| Guaranteed remaining capacity | — | Not declared |
| Round-trip efficiency | — | Not declared |
| Standby consumption | — | 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 |
| Battery passport | — | Not declared |
| Carbon footprint | — | Not declared |
| Recycled content | — | Not declared |
Which documents this page rests on
The rest of the data comes from one page on the manufacturer's site, cited row by row in the table above.
A manual or a datasheet counts as a source even when the original file is hosted elsewhere: what matters is the document, not the server. Where that happens, it is stated above.
What it really costs
- the manufacturer does not state the warranty: the limit could be shorter than the stated cycles
- 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
- 6000
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.
Pros and cons
In favour
- It reads what the home's existing rooftop solar system already produces and stores it in the battery, without adding panels of its own. source
- With the satellite battery, it reaches up to six units connected in series, more than any other SolarFlow in this batch.
- Even on a freezing night the battery doesn't stop charging: self-heating brings it to the right temperature on its own.
- It withstands higher operating temperatures than its siblings in this batch, useful on a balcony that gets direct sun all day.
Worth knowing
- It isn't sold without a battery: anyone who wants just the control unit, maybe to add it later, can't buy it alone on this page. source
- Anyone expecting immediate protection is disappointed: the outage outlet is off by default and has to be turned on by hand from the app.
- Anyone starting from scratch, without an already installed rooftop solar system, has nothing to store with it. source
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Updates to this sheet and Manufacturer Notes
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Price updated