EcoFlow DELTA Pro 3 vs EcoFlow DELTA Pro
Two of the home backup power stations (3 kwh+) in our best home backup power stations and whole-home batteries comparison, lined up spec by spec. Every figure comes from the manufacturer pages linked below, and the scores use the same published formula as the full ranking.
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Best for: 4 kWh with 120/240 V outlets and 2,600 W solar
Check price at AmazonBest for: The original wheeled 3.6 kWh home battery
Check price at AmazonSpec-by-spec comparison
Green marks the better published figure. "Not listed" means the manufacturer doesn't publish it.
| Spec | EcoFlow DELTA Pro 3 | EcoFlow DELTA Pro | Weight |
|---|---|---|---|
| Battery capacityUsable runtime scales with watt-hours. A 1,000 Wh station runs a 100 W load for roughly 8–9 hours once inverter losses are counted. | 4096 Wh | 3600 Wh | 25% |
| Continuous AC outputThe rated (continuous) inverter output decides which appliances you can plug in. We use the rated figure, not surge or 'boost' modes. | 4000 W | 3600 W | 20% |
| Max solar inputHigher solar input means faster recharging off-grid, if you have enough panels to use it. | 2600 W | 1600 W | 15% |
| WeightLighter is easier to carry to a campsite or between rooms. | 51.5 kg | 45 kg | 10% |
| Max AC charging powerMore AC input watts means a faster wall recharge before a trip or storm. | Not listed | 1800 W | 5% |
| 240 V output (listed)240 V output runs well pumps, dryers and other 240 V circuits through a transfer switch or home panel. We mark Yes only when the maker lists 240 V output on the unit itself. | Yes | No | 10% |
| Rated cycle lifeHow many full cycles the maker rates the battery for. Thresholds differ (70% vs 80% remaining capacity), so read the note under each product. | 4000 cycles | 3500 cycles | 10% |
| Surge / peak outputShort bursts for motor start-up (fridges, pumps). Skipped when the maker doesn't publish a surge figure. | 8000 W | 7200 W | 5% |
| Chemistry | LFP | LFP | info |
| Cycle rating | 4,000 cycles to 80% | 3,500 cycles to 80% (6,500 to 50%) | info |
| AC output | 4,000 W (6,000 W X-Boost), 8,000 W surge; 120/240 V | 5 outlets, 3,600 W total (surge 7,200 W); X-Boost 4,500 W | info |
| Outlets | 4 × NEMA 5-20R, TT-30R, 6-20R (240 V), L14-30R (120/240 V) | Not listed | info |
| Solar input | 2,600 W total (High-PV 1,600 W + Low-PV 1,000 W) | 1,600 W max, 11–150 V | info |
| Expansion | 12 kWh with 2 extra batteries; 48 kWh systems with EcoFlow Smart Home Panel 2 | Up to two DELTA Pro Smart Extra Batteries | info |
| UPS | 10 ms | Not listed | info |
| IP rating | IP65 battery | Not listed | info |
| Weight | 51.5 kg (113.54 lb) | About 99 lb / 45 kg | info |
| AC input | Not listed | 1,800 W at 120 V; 3,000 W at 240 V | info |
| 240 V | Not listed | Needs two units and EcoFlow's Double Voltage Hub | info |
| VoltPick score | 4.1/10 | 2.1/10 | 100% |
Where each one comes out ahead
EcoFlow DELTA Pro 3
Better published figure on: Battery capacity, Continuous AC output, Max solar input, 240 V output (listed), Rated cycle life, Surge / peak output.
What we like
- 120/240 V on the unit, including L14-30R
- 2,600 W dual solar input
- 4,000 cycles to 80%
- 10 ms UPS
Watch out for
- Over 50 kg
- Not compatible with DELTA Pro or DELTA Pro Ultra accessories (EcoFlow note)
EcoFlow DELTA Pro
Better published figure on: Weight.
What we like
- 3,600 W output and 7,200 W surge
- Expandable with extra batteries
- 1,600 W solar
Watch out for
- 120 V only on its own
- EcoFlow lists it as limited stock before discontinuation
Verdict
DELTA Pro 3 adds 240 V outlets, 400 W more output, 1,000 W more solar and a 4,000-cycle rating. The original DELTA Pro is being phased out.
- EcoFlow DELTA Pro 3: EcoFlow: DELTA Pro 3 specs
- EcoFlow DELTA Pro: EcoFlow: DELTA Pro specs