sonnenBatterie 10 performance vs Zendure SolarFlow 4000 Mix AC+
Technical comparison · All-in-one
The choice turns on what the battery must do when the grid is gone. sonnenBatterie 10 performance is three-phase and delivers 7 kW continuous, but with no backup power it does not feed the house in an outage; Zendure SolarFlow 4000 Mix AC+ is single-phase at 3.7 kW and keeps running. Figures are manufacturer-declared.
| Parameter | ||
|---|---|---|
| Awards | — | |
| In brief | ||
| Usable capacity | 10 kWh | — |
| Continuous output | 7000 W | 3680 W |
| Cell chemistry | LFP (lithium iron phosphate) | — |
| Cost per kWh | — | 200 €/kWh |
| List price | — | 1600 € |
| Weight | 165 kg | 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 | 60.6 Wh/kg | 100 Wh/kg |
| Power-to-capacity ratio | 0.7 C | 0.46 C |
| Identity | ||
| Use tier | F4 — House-sized (8–20 kWh) | F3 — Flat-sized (3–8 kWh) |
| Price | ||
| Price | — | 1999 € |
| Category specs | ||
| Expandable | Yes | — |
| Maximum expanded capacity | 50 kWh | — |
| Phases | Three-phase | Single-phase |
| Maximum charge power | 7 kW | 4 kW |
| Backup power | None | UPS |
| Backup phases | None | — |
| Switchover time | — | 10 ms |
| Grid charging | — | Yes |
| Dynamic tariffs | — | Built in |
| EV charger integration | Yes | — |
| Virtual power plant | sonnenVPP | — |
| Round-trip efficiency | — | 90 % |
| Ingress protection | IP30 | IP65 |
| Minimum temperature | -5 °C | -20 °C |
| Maximum temperature | 45 °C | 55 °C |
| Works without internet | — | With limitations |
| Declared standards | VDE-AR-N 4105, UN 38.3, IEC 62619, VDE 2510-50 | — |
| 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
- Three-phase → single-phase: the first is built for a three-phase installation, the second for a single-phase one.
- Backup power: none → UPS, 10 ms: in an outage only the Zendure keeps connected loads running.
- Expandable up to 50 kWh (sonnenBatterie): you start at 10 kWh and add modules as consumption grows.
- IP30 → IP65: a dry indoor room against a more exposed spot.
Which one to choose
Choose sonnenBatterie 10 performance if…
the house is three-phase and you want a 7 kW battery with 10 kWh usable, charging at up to 7 kW, that can grow to 50 kWh by adding modules and talks to the EV charger and to the sonnenVPP virtual power plant. The trade-off: no backup power, so an outage leaves the house dark, and IP30 means a dry indoor room.
Choose Zendure SolarFlow 4000 Mix AC+ if…
a single-phase battery of 3,680 W is enough and connected loads must stay on through an outage, with a declared 10 ms switchover. IP65 and -20 to 55 °C allow a spot outside the living space, and it keeps working in reduced mode without internet. The trade-off: 3,680 W instead of 7,000 W continuous, charging capped at 4 kW and a declared connection power of 3 kW.
Where to buy
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