BLUETTI AC240P vs EcoFlow DELTA Pro 3
Technical comparison · High capacity
Same kind of use, different sizes: the BLUETTI AC240P stores about 1.8 kWh in 33 kg, the EcoFlow DELTA Pro 3 over 4 kWh in 51.5 kg, going by manufacturer-declared figures. The choice sits between portability and the ability to run heavy loads.
| Parameter | ||
|---|---|---|
| In brief | ||
| Nominal capacity | 1.843 kWh | 4.096 kWh |
| Continuous output | 2400 W | 4000 W |
| Peak output | 3600 W | 8000 W |
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| Cost per kWh | 1247.42 €/kWh | 805.42 €/kWh |
| List price | 2299 € | 3299 € |
| Weight | 33 kg | 51.5 kg |
| Dimensions (W×D×H) | 41.95 × 29.35 × 40.95 cm | 41.04 × 34.1 × 69.3 cm |
| Outlets | ||
| AC outlets | Yes (×4) | Yes (×5) |
| How long it lasts | ||
| Battery life cycles | 2190 cicli | 1825 cicli |
| The limit that runs out first | anni di garanzia | anni di garanzia |
| Rated cycles | 3500 cicli | 4000 cicli |
| Capacity at end of cycle life | 80 % | 80 % |
| Warranty | 6 anni | 5 anni |
| The numbers | ||
| Cost of stored energy | 0.57 €/kWh | 0.441 €/kWh |
| Energy density | 55.8 Wh/kg | 79.5 Wh/kg |
| Power-to-capacity ratio | 1.3 C | 0.98 C |
| Identity | ||
| Use tier | F2 — Room-sized (1–3 kWh) | F3 — Flat-sized (3–8 kWh) |
| Price | ||
| Price | 2299 € | ~2200–5000 € |
| Category specs | ||
| Expandable | Yes | Yes |
| Maximum expanded capacity | 10.443 kWh | 12 kWh |
| Fastest USB-C | 100 W | 100 W |
| 0–80% charge time | 45 min | 60 min |
| Maximum solar input | 1200 W | 2600 W |
| Backup power | UPS | UPS |
| Switchover time | 15 ms | 10 ms |
| Ingress protection | IP65 | IP65 |
| Mounting | Portable | Portable |
| Minimum temperature | -20 °C | — |
| Maximum temperature | 40 °C | — |
| Noise level | 53 dB | 30 dB |
| Wheels and handle | — | Yes |
| Declared standards | CE | — |
The differences that matter
- Continuous output, 2400 W vs 4000 W → the first struggles to start several motor loads together; the second handles them in parallel.
- Capacity, 1.8 kWh vs 4.1 kWh → at the same load the second lasts more than twice as long.
- Solar input, 1200 W vs 2600 W → with generous panels the second fills up much sooner.
- Weight, 33 kg vs 51.5 kg → one person can load the first into a car; the second is better left on its wheels.
Which one to choose
Choose BLUETTI AC240P if…
you move the battery often, in a van or between home and a job site, and run computers, lights and small tools: it weighs about 18 kg less, recharges from 0 to 80% in 45 minutes and has a 6-year warranty. You accept a 2400 W continuous limit, a 1200 W solar input and a 53 dB fan.
Choose EcoFlow DELTA Pro 3 if…
you need to run several motor or heating loads together: 4000 W continuous with peaks up to 8000 W absorb start-up surges, and the 2600 W solar input refills faster from panels. It costs 51.5 kg to move (wheels and a handle help), 60 minutes to reach 80% and a 5-year warranty instead of 6.
Where to buy
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