Anker SOLIX C1000 vs EcoFlow DELTA 2
Technical comparison · Home backup
Two room-size power stations that are nearly twins: about 1 kWh, 1,800 W continuous, LFP cells and a five-year warranty. What separates them is how they behave when the mains drop: the SOLIX C1000 in continuity mode (UPS, 20 ms), the DELTA 2 with a short pause (EPS, 30 ms). Values are manufacturer-declared.
| Parameter | ||
|---|---|---|
| In brief | ||
| Nominal capacity | 1.056 kWh | 1.024 kWh |
| Continuous output | 1800 W | 1800 W |
| Peak output | 2400 W | 2700 W |
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| Cost per kWh | 946.02 €/kWh | 584.96 €/kWh |
| List price | 999 € | 599 € |
| Weight | 12.9 kg | 12 kg |
| Outlets | ||
| AC outlets | — | Yes (×4) |
| How long it lasts | ||
| Battery life cycles | 1825 cicli | 1825 cicli |
| The limit that runs out first | anni di garanzia | anni di garanzia |
| Rated cycles | 3000 cicli | 3000 cicli |
| Capacity at end of cycle life | 80 % | 80 % |
| Warranty | 5 anni | 5 anni |
| The numbers | ||
| Cost of stored energy | 0.518 €/kWh | 0.321 €/kWh |
| Energy density | 81.9 Wh/kg | 85.3 Wh/kg |
| Power-to-capacity ratio | 1.7 C | 1.76 C |
| Identity | ||
| Use tier | F2 — Room-sized (1–3 kWh) | F2 — Room-sized (1–3 kWh) |
| Universal specs | ||
| Voltage | — | 220 V |
| Category specs | ||
| Expandable | Yes | Yes |
| Maximum expanded capacity | 2.112 kWh | — |
| Fastest USB-C | 100 W | 100 W |
| Maximum charge power | 1.3 kW | 1.2 kW |
| Maximum solar input | 600 W | 500 W |
| Backup power | UPS | EPS (brief interruption) |
| Switchover time | 20 ms | 30 ms |
| Mounting | Portable | Portable |
| Minimum temperature | -20 °C | -10 °C |
| Maximum temperature | 40 °C | 45 °C |
The differences that matter
- Backup, UPS at 20 ms vs EPS at 30 ms → when the mains fail the SOLIX C1000 moves to battery in continuity mode, the DELTA 2 with a short pause: it matters for anything that must not switch off.
- Solar input and mains charging, 600 W and 1.3 kW vs 500 W and 1.2 kW → small gaps that do not change the size of the setup.
Which one to choose
Choose Anker SOLIX C1000 if…
the station sits somewhere cold, such as a garage or a cellar (the maker declares operation from −20 to 40 °C), or you want to be able to add capacity: with the expansion it reaches a declared 2.1 kWh. The compromise is a lower declared peak (2,400 W).
Choose EcoFlow DELTA 2 if…
the place gets warm, up to a declared 45 °C, or you need a higher peak (2,700 W) for loads with a strong start-up surge. It has four mains sockets. You accept the pause in emergency mode and a minimum temperature of −10 °C.
Where to buy
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