Capacity
Higher is better | Scale max: 4,096 Wh | DELTA Pro 3 leads
DELTA (Gen 1) 1,260 Wh
DELTA Pro 3 4,096 Wh
DELTA Pro 3: +2,836 Wh (+225.1%).
DELTA (Gen 1) vs DELTA Pro 3
VS
1,800W
Running power
4,000W
1,260 Wh
Battery
4,096 Wh
30.9 lbs
Weight
113.5 lbs
At a Glance
This comparison targets buyers deciding between an entry-level portable power station and a heavy-duty home backup unit, both from EcoFlow. The DELTA Pro 3 delivers 4000W of running power and 4096 Wh of capacity, roughly doubling the DELTA Gen 1 on output and tripling it on stored energy.
It also runs 48 out of 53 tested devices compared to 40 for the Gen 1, giving it noticeably broader device coverage. LFP chemistry and a 4000-cycle lifespan make the Pro 3 far more durable than the Gen 1's 800-cycle NMC cells.
Expansion support and up to 2600W of solar input position it as a serious whole-home backup solution. The tradeoff is weight: at 113.5 lbs, the Pro 3 is nearly four times heavier than the 30.9 lb Gen 1, which limits grab-and-go portability.
Overall Winner
DELTA Pro 3
Powers 48 of 53 tested devices vs 40 for DELTA (Gen 1)
Home backup: DELTA Pro 3 RV / mobile: DELTA (Gen 1) Solar: Tie
DELTA Pro 3 wins overall, but the best pick depends on your use case.
Choose DELTA (Gen 1) if...
- + Portability matters (31 lbs vs 114)
- + You want faster solar recharging
Choose DELTA Pro 3 if...
- + You value battery longevity (LFP, 4,000 cycles)
- + You need 240V-capable loads
- + You want future battery expansion
- + You want broader device compatibility
- + You need all-day runtime headroom
Spec Snapshot
Absolute values shown. Bars are scaled within this comparison for readability.
Each metric is independent. Bar lengths are not comparable across different compare pages.
Running Power
Higher is better | Scale max: 4,000 W | DELTA Pro 3 leads
DELTA (Gen 1) 1,800 W
DELTA Pro 3 4,000 W
DELTA Pro 3: +2,200 W (+122.2%).
Surge Power
Higher is better | Scale max: 8,000 W | DELTA Pro 3 leads
DELTA (Gen 1) 3,300 W
DELTA Pro 3 8,000 W
DELTA Pro 3: +4,700 W (+142.4%).
Weight
Lower is better | Scale best: 30.9 lbs | DELTA (Gen 1) leads
DELTA (Gen 1) 30.9 lbs (14.0 kg)
DELTA Pro 3 113.5 lbs (51.5 kg)
DELTA (Gen 1): -82.7 lbs (72.8% lighter).
Battery Life
Higher is better | Scale max: 4,000 cycles | DELTA Pro 3 leads
DELTA (Gen 1) 800 cycles
DELTA Pro 3 4,000 cycles
DELTA Pro 3: +3,200 cycles (+400.0%).
Where Compatibility Actually Differs
Out of 53 devices tested, 8 show a different result between these two stations.
Both can run: 40 · Differences: 15% (8/53) · Neither can run: 5
Only DELTA Pro 3 can run 8
Circular Saw (Corded) DELTA (Gen 1): Surge shortfall
Electric Chainsaw (14-inch) DELTA (Gen 1): Surge shortfall
Shop Vac (Wet/Dry, 5-6 HP Peak) DELTA (Gen 1): Surge shortfall
Dehumidifier (70 Pint) DELTA (Gen 1): Needs soft-start
Portable AC (12,000 BTU) DELTA (Gen 1): Needs soft-start
Sump Pump (1/2 HP) DELTA (Gen 1): Needs soft-start
Well Pump (1 HP) DELTA (Gen 1): Voltage mismatch
Microwave Oven (1000W) DELTA (Gen 1): Running shortfall
Neither can run · 5 devices
These are 240V or high-voltage devices — neither station supports them.
Pancake Air Compressor (6-Gallon)
Central AC (3-Ton)
Electric Water Heater (50 Gal)
Electric Clothes Dryer
RV Rooftop AC (13,500 BTU)
Full Specs Comparison
| Spec | DELTA (Gen 1) | DELTA Pro 3 |
|---|---|---|
| Capacity | 1,260 Wh | 4,096 Wh ✓ |
| Running Power | 1,800 W | 4,000 W ✓ |
| Surge Power | 3,300 W | 8,000 W ✓ |
| Weight | 30.9 lbs (14.0 kg) ✓ | 113.5 lbs (51.5 kg) |
| Energy Density | 90.0 Wh/kg ✓ | 79.5 Wh/kg |
| Portability Tier | portable | stationary |
| Chemistry | NMC | LFP |
| Cycle Life | 800 | 4,000 ✓ |
| Expandable | No | Yes |
| UPS | No | No |
| AC Voltage | 120V | 120V/240V |
Solar Charging
Best-case charging profile using compatible solar panels.
DELTA (Gen 1)
Faster Max solar input 400 W
Connector XT60
Full charge time ~4.5h
Compatible panels 19/20
MPPT: 10-65V
DELTA Pro 3
Max solar input 2,600 W
Connector XT60 + XT60i
Full charge time ~14.6h
Compatible panels 20/20
MPPT: 30-150V
Charge speed comparison
Longer bar = faster charge (inverted scale)
Device Compatibility
All tested devices grouped by category. Click a category to expand.
DELTA (Gen 1)DELTA Pro 3
Emergency(2)
1/22/2
1/2
2/2
| Device | DELTA (Gen 1) | Runtime | DELTA Pro 3 | Runtime |
|---|---|---|---|---|
| Full-Size Freezer (15-17 Cu. Ft.) | Safe | 5.5h | Safe | 17.9h |
| Sump Pump (1/2 HP) | Soft Start | 0.8h | Safe | 2.5h |
Entertainment(2)
2/22/2
2/2
2/2
EV & Transportation(2)
2/22/2
2/2
2/2
Heating & Cooling(7)
4/76/7
4/7
6/7
| Device | DELTA (Gen 1) | Runtime | DELTA Pro 3 | Runtime |
|---|---|---|---|---|
| Box Fan (20-inch) | Safe | 10.6h | Safe | 34.5h |
| Central AC (3-Ton) | Voltage Fail | N/A | Fail | N/A |
| Dehumidifier (70 Pint) | Soft Start | 1h | Safe | 3.3h |
| Gas Furnace Fan (Blower) | Safe | 0.8h | Safe | 2.7h |
| Portable AC (12,000 BTU) | Soft Start | 0.6h | Safe | 2.1h |
| Space Heater (1,500W) | Safe | 0.6h | Safe | 1.9h |
| Window AC (8,000 BTU) | Safe | 1.2h | Safe | 4h |
Home Infrastructure(3)
1/32/3
1/3
2/3
| Device | DELTA (Gen 1) | Runtime | DELTA Pro 3 | Runtime |
|---|---|---|---|---|
| Electric Water Heater (50 Gal) | Voltage Fail | N/A | Fail | N/A |
| Garage Door Opener (Residential) | Safe | 4.9h | Safe | 15.9h |
| Well Pump (1 HP) | Voltage Fail | N/A | Tight | 1.2h |
Kitchen Appliances(11)
10/1111/11
10/11
11/11
| Device | DELTA (Gen 1) | Runtime | DELTA Pro 3 | Runtime |
|---|---|---|---|---|
| 2-Slice Bread Toaster | Safe | 0.6h | Safe | 1.9h |
| Coffee Maker | Safe | 0.6h | Safe | 1.8h |
| Digital Air Fryer | Tight | 0.5h | Safe | 1.7h |
| Electric Skillet | Safe | 0.6h | Safe | 1.9h |
| Electric Stove (Single Burner) | Tight | 0.5h | Safe | 1.6h |
| Electric Water Kettle | Safe | 0.6h | Safe | 1.9h |
| Instant Pot (6 Qt) | Safe | 0.6h | Safe | 2h |
| Microwave Oven (1000W) | Fail | N/A | Safe | 1.5h |
| Rice Cooker | Safe | 0.9h | Safe | 3h |
| Slow Cooker | Safe | 2.9h | Safe | 9.6h |
| Toaster Oven | Tight | 0.5h | Safe | 1.6h |
Large Appliances(4)
3/43/4
3/4
3/4
Medical(4)
4/44/4
4/4
4/4
Outdoor & RV(6)
5/65/6
5/6
5/6
Personal Care(2)
2/22/2
2/2
2/2
Power Tools(5)
1/54/5
1/5
4/5
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The Bottom Line
The DELTA Gen 1 suits travelers, car campers, and light-duty users who need a 30.9 lb unit they can carry solo and recharge via solar in about 4.5 hours. The DELTA Pro 3 fits homeowners and power-hungry users who need 4000W output, expandable storage, and the longevity of LFP cells rated for 4000 cycles. With a score of 96 versus 75.5, the DELTA Pro 3 is the clear winner for anyone who can accommodate its size and weight.
DELTA (Gen 1) vs DELTA Pro 3 FAQ
Q Which is better for home backup, DELTA (Gen 1) or DELTA Pro 3?
DELTA Pro 3 is the stronger overall choice in this matchup based on weighted compatibility across 53 tested devices.
Q Which has longer runtime, DELTA (Gen 1) or DELTA Pro 3?
DELTA Pro 3 has higher battery capacity (4,096 Wh), which generally supports longer runtime on the same load.
Q Which charges faster with solar panels?
DELTA (Gen 1) has the faster best-case solar recharge profile in our panel compatibility test set.
Q Which is more portable, DELTA (Gen 1) or DELTA Pro 3?
DELTA (Gen 1) is lighter at 30.9 lbs vs 113.5 lbs. DELTA (Gen 1) is rated portable for portability.
Q How many devices can each power station run?
DELTA Pro 3 powers 48 of 53 tested devices, compared to 40 for DELTA (Gen 1).
Q Can you expand the battery capacity of DELTA (Gen 1) or DELTA Pro 3?
Only DELTA Pro 3 supports expansion batteries for additional capacity. DELTA (Gen 1) is limited to its built-in 1,260 Wh.