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Zendure SolarFlow 2400 Pro is a balcony storage unit that holds the battery, the converter and four independent solar panel inputs in a single body, to limit visible cabling and simplify wall or balcony mounting. It returns energy into the home through a dedicated outlet, within the limit allowed by balcony solar regulation: exceeding that limit needs an electrician to hardwire it to a new circuit breaker and register it as a non plug-and-play storage inverter. It grows with more batteries from the same system, when the starting capacity isn't enough anymore.
It recognizes a power outage in the home on its own and switches to the battery to power the loads connected to its dedicated emergency outlet, separate from the one that returns energy to the grid. It also charges from the grid when no panels are connected or when the sun isn't enough, which makes it useful too for anyone who wants to take advantage of the cheapest hours or of surplus energy on the grid. Below zero it heats the battery on its own before charging it, to avoid damaging it with the cold.
It's set up and controlled from the manufacturer's app, which is also needed to choose the operating mode and for remote monitoring: without a smartphone and a Wi-Fi connection, initial setup can't be completed. It talks to several third-party smart meters to adjust the power returned based on what the home is drawing at that moment, avoiding feeding back energy that's already been paid for. It's built for anyone who already has a sunny balcony or outdoor wall and wants to store the excess energy; anyone looking for a reserve able to power the whole home during a prolonged blackout needs a different system.
Highest technical score among the 18 sheets in the All-in-one category (room-sized tier): 79/100.
How we assign awards →| Parameter | Value | Source |
|---|---|---|
| Dimensions | 32.6 × 25.1 × 29.4 cm (12.8 × 9.9 × 11.6 in) | manufacturer website |
| Weight | 27.8 kg (61.3 lb) | manufacturer website |
| Nominal capacity | 2.4 kWh | Declared by the brand |
| Cell chemistry | LFP (lithium iron phosphate) | Declared by the brand |
| Expandable | Yes | Declared by the brand |
| Maximum expanded capacity | 16.8 kWh | Declared by the brand |
| Battery voltage | 48 V | Declared by the brand |
| Feed-in limit | 800 VA | Declared by the brand |
| Inverter included | Yes | Declared by the brand |
| Maximum solar input | 3000 W | Declared by the brand |
| MPPT trackers | 4 | Declared by the brand |
| Grid charging | Yes | Declared by the brand |
| Maximum charge power | 2.4 kW | Declared by the brand |
| Dynamic tariffs | Built in | Declared by the brand |
| Backup power | EPS (brief interruption) | Declared by the brand |
| Backup output | 2400 W | Declared by the brand |
| Warranty | 10 anni | 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 |
| Cell heating | Yes | Declared by the brand |
| App required for setup | Yes | Declared by the brand |
| Usable capacity | — | Not declared |
| Depth of discharge | — | Not declared |
| Cell supplier | — | Not declared |
| Switchover time | — | Not declared |
| Rated cycles | — | Not declared |
| Capacity at end of cycle life | — | Not declared |
| Guaranteed throughput | — | Not declared |
| Guaranteed remaining capacity | — | Not declared |
| Round-trip efficiency | — | Not declared |
| Standby consumption | — | Not declared |
| Mounting | — | 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 |
| Declared standards | — | Not declared |
| Battery passport | — | Not declared |
| Carbon footprint | — | Not declared |
| Recycled content | — | Not declared |
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.
Chosen by the declared use tier and footprint, not by price: we don't publish prices.
