Anker SOLIX Solarbank Max AC vs E3/DC S10 X Compact
Technical comparison · All-in-one
A modular single-phase storage unit against a three-phase home system with open protocols: two machines of different scale. The Anker is single-phase at 3,500 W, expandable to 42 kWh; the E3/DC reaches 12,000 W three-phase and talks to the heat pump. Figures are manufacturer-declared.
| Parameter | ||
|---|---|---|
| In brief | ||
| Usable capacity | — | 8.25 kWh |
| Continuous output | 3500 W | 12000 W |
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| Cost per kWh | 228.57 €/kWh | — |
| List price | 1600 € | — |
| Weight | 73 kg | 130 kg |
| Dimensions (W×D×H) | 67 × 32.5 × 35.6 cm | 59 × 50 × 120 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 | ||
| Cost of stored energy | 0.063 €/kWh | — |
| Energy density | 95.9 Wh/kg | 63.5 Wh/kg |
| Power-to-capacity ratio | 0.5 C | 1.45 C |
| Identity | ||
| Use tier | F3 — Flat-sized (3–8 kWh) | F4 — House-sized (8–20 kWh) |
| Price | ||
| Price | 1599 € | — |
| Universal specs | ||
| Voltage | — | 230 V |
| Category specs | ||
| Depth of discharge | 100 % | — |
| Expandable | Yes | Yes |
| Maximum expanded capacity | 42 kWh | 11.2 kWh |
| Battery voltage | 400 V | — |
| Phases | Single-phase | Three-phase |
| Maximum charge power | 3.5 kW | 6 kW |
| Backup power | UPS | EPS (brief interruption) |
| Backup phases | Single-phase | Three-phase |
| Switchover time | 10 ms | — |
| Grid charging | Yes | Yes |
| Dynamic tariffs | Built in | Built in |
| Heat pump integration | — | Yes |
| Ingress protection | IP66 | IP20 |
| Mounting | Floor standing | — |
| Minimum temperature | -20 °C | 5 °C |
| Maximum temperature | 55 °C | 35 °C |
| 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 |
| Grid connection power | 3.68 kW | — |
The differences that matter
- Continuous output 3,500 vs 12,000 W → the first covers a single-phase installation, the second a three-phase home.
- Phases: single vs three, also in backup → in an outage only the E3/DC powers all three phases.
- Expansion to 42 vs 11.2 kWh → the Anker can grow much further after installation.
- Modbus TCP, CAN bus, EEBus and heat-pump communication (E3/DC) → it integrates locally with the other systems in the house.
Which one to choose
Choose Anker SOLIX Solarbank Max AC if…
your installation is single-phase with a 3.68 kW connection power and you want room to grow to 42 kWh over time. It has UPS backup with a 10 ms switchover, IP66 protection and works from -20 to 55 °C. The trade-off is 3,500 W continuous output, a 3.5 kW maximum charge rate and single-phase backup only.
Choose E3/DC S10 X Compact if…
you have a three-phase home and want a system that talks to the heat pump and can be controlled locally: 12,000 W, 8.25 kWh usable, three-phase backup, Modbus TCP, CAN bus and EEBus, full operation even without internet. The trade-off is 130 kg, IP20 with a 5–35 °C range (so a sheltered room), declared expansion only up to 11.2 kWh, and backup with a brief pause.
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.