E3/DC S10 X Compact vs sonnenBatterie 10 hybrid
Technical comparison · All-in-one
Two all-in-one home batteries, both three-phase and both with emergency power. Sizing decides it: the E3/DC S10 X Compact is built for high loads and heavy household consumption, the sonnenBatterie 10 hybrid for a smaller starting need and growth by adding modules. All figures are manufacturer-declared.
| Parameter | ||
|---|---|---|
| In brief | ||
| Usable capacity | 8.25 kWh | 5 kWh |
| Continuous output | 12000 W | 2500 W |
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| Weight | 130 kg | — |
| Dimensions (W×D×H) | 59 × 50 × 120 cm | 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 |
| Warranty | 10 anni | 10 anni |
| Guaranteed remaining capacity | 80 % | — |
| The numbers | ||
| Energy density | 63.5 Wh/kg | — |
| Power-to-capacity ratio | 1.45 C | 0.5 C |
| Identity | ||
| Use tier | F4 — House-sized (8–20 kWh) | F3 — Flat-sized (3–8 kWh) |
| Universal specs | ||
| Voltage | 230 V | — |
| Category specs | ||
| Expandable | Yes | Yes |
| Maximum expanded capacity | 11.2 kWh | 25 kWh |
| Phases | Three-phase | Three-phase |
| Maximum charge power | 6 kW | 2.5 kW |
| Backup power | EPS (brief interruption) | EPS (brief interruption) |
| Backup phases | Three-phase | Three-phase |
| Switchover time | — | 5000 ms |
| Grid charging | Yes | — |
| Dynamic tariffs | Built in | — |
| EV charger integration | — | Yes |
| Heat pump integration | Yes | — |
| Ingress protection | IP20 | IP30 |
| Minimum temperature | 5 °C | -5 °C |
| Maximum temperature | 35 °C | 45 °C |
| Noise level | — | 35 dB |
| Works without internet | Fully | — |
| Local control | Modbus | — |
| Open protocols | Modbus TCP, CAN bus, EEBus | — |
| Declared standards | CE, UN 38.3, VDE-AR-N 4105, IEC 62619, VDE 2510-50 | — |
The differences that matter
- Usable capacity, 8.25 kWh vs 5 kWh → more energy to draw on before going back to the grid.
- Continuous output, 12000 W vs 2500 W → at 2.5 kW, just a few heavy loads together already reach the rated limit.
- Maximum charge power, 6 kW vs 2.5 kW → in theory and without losses, about 1 h 20 min to fill the E3/DC against about 2 h for the sonnenBatterie.
- Maximum expanded capacity, 11.2 kWh vs 25 kWh → the room to grow belongs to the sonnenBatterie 10 hybrid.
Which one to choose
Choose E3/DC S10 X Compact if…
the house has high consumption and the unit goes in an indoor technical room: 59 × 50 cm footprint, 120 cm tall. The operating range is 5–35 °C with IP20, so no unheated rooms exposed to frost.
Choose sonnenBatterie 10 hybrid if…
the room is cold in winter or hot in summer, such as a cellar or garage: the sonnenBatterie 10 hybrid is rated from -5 to 45 °C with IP30. The trade-off is starting with less energy and less power than the E3/DC offers, then adding capacity in modules. It is also 172 cm tall.
Where to buy
The purchase links are the same as on the two product pages and don't influence the verdict. The product pages have the complete data.