sonnenBatterie 10 hybrid vs Zendure SolarFlow 4000 Mix AC+
Technical comparison · All-in-one
The choice is a three-phase house with slow backup or a single-phase house with instant backup: the sonnenBatterie 10 hybrid works on three phases and restarts power after about 5 seconds, the SolarFlow 4000 Mix AC+ is single-phase and switches over in 10 ms. Figures are manufacturer-declared.
| Parameter | ||
|---|---|---|
| Awards | — | |
| In brief | ||
| Usable capacity | 5 kWh | — |
| Continuous output | 2500 W | 3680 W |
| Cell chemistry | LFP (lithium iron phosphate) | — |
| Cost per kWh | — | 200 €/kWh |
| List price | — | 1600 € |
| Weight | — | 80 kg |
| Dimensions (W×D×H) | 69 × 36 × 172 cm | — |
| How long it lasts | ||
| Battery life cycles | 3650 cicli | 3650 cicli |
| The limit that runs out first | anni di garanzia | anni di garanzia |
| Rated cycles | 10000 cicli | 10000 cicli |
| Capacity at end of cycle life | — | 70 % |
| Warranty | 10 anni | 10 anni |
| The numbers | ||
| Cost of stored energy | — | 0.061 €/kWh |
| Energy density | — | 100 Wh/kg |
| Power-to-capacity ratio | 0.5 C | 0.46 C |
| Identity | ||
| Use tier | F3 — Flat-sized (3–8 kWh) | F3 — Flat-sized (3–8 kWh) |
| Price | ||
| Price | — | 1999 € |
| Category specs | ||
| Expandable | Yes | — |
| Maximum expanded capacity | 25 kWh | — |
| Phases | Three-phase | Single-phase |
| Maximum charge power | 2.5 kW | 4 kW |
| Backup power | EPS (brief interruption) | UPS |
| Backup phases | Three-phase | — |
| Switchover time | 5000 ms | 10 ms |
| Grid charging | — | Yes |
| Dynamic tariffs | — | Built in |
| EV charger integration | Yes | — |
| Round-trip efficiency | — | 90 % |
| Ingress protection | IP30 | IP65 |
| Minimum temperature | -5 °C | -20 °C |
| Maximum temperature | 45 °C | 55 °C |
| Noise level | 35 dB | — |
| Works without internet | — | With limitations |
| Grid connection power | — | 3 kW |
JouleSpecs Awards
No awards in this tier.
Best value Flat-sized (3–8 kWh)
Best balance of technical score and price among the 3 sheets in the All-in-one category (flat-sized tier): list price €1999, technical score 79/100.
How we assign awards →The differences that matter
- Switchover, 5000 ms vs 10 ms → with the SolarFlow power passes over almost without a gap; with the sonnenBatterie the house is without power for about 5 seconds.
- Three-phase vs single-phase, backup included → depends on the connection of your house.
- Continuous output, 2500 W vs 3680 W, and charging 2.5 kW vs 4 kW → the SolarFlow carries more loads together and fills faster.
- IP30 and -5 to 45 °C vs IP65 and -20 to 55 °C → the sonnenBatterie wants an indoor room; the SolarFlow tolerates a garage or outdoors.
Which one to choose
Choose sonnenBatterie 10 hybrid if…
the house is three-phase and backup has to cover all three phases: 5 kWh usable, expandable to 25 kWh, and it talks to the wallbox. You accept a pause of about 5 seconds when it switches to backup, 2500 W continuous and 2.5 kW charging, and indoor installation: IP30, -5 to 45 °C.
Choose Zendure SolarFlow 4000 Mix AC+ if…
the installation is single-phase and nothing may switch off when the grid drops: 10 ms switchover, 3680 W continuous, 4 kW grid charging with native hourly tariffs, a declared round-trip efficiency of 90% and IP65 with operation from -20 to 55 °C. You accept a single-phase system and, without internet, reduced operation.
Where to buy
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