Capacity
Higher is better | Scale max: 4,096 Wh | DELTA Pro 3 leads
Delta Pro 3,600 Wh
DELTA Pro 3 4,096 Wh
DELTA Pro 3: +496 Wh (+13.8%).
Delta Pro vs DELTA Pro 3
VS
3,600W
Running power
4,000W
3,600 Wh
Battery
4,096 Wh
99.2 lbs
Weight
113.5 lbs
At a Glance
This comparison targets buyers choosing between two high-capacity EcoFlow units for home backup, off-grid use, or heavy-load applications. The DELTA Pro 3 edges ahead with 4000W of running power, a 4096 Wh battery, and 8000W surge capacity, compared to the original Delta Pro's 3600W output, 3600 Wh capacity, and 7200W surge. That extra headroom helped the Pro 3 power 48 out of 53 tested devices versus 47 for the Delta Pro.
Solar charging separates them further: the Pro 3 accepts up to 2600W of solar input, a 62.5% increase over the Delta Pro's 1600W max. Cycle life also favors the newer unit at 4000 cycles versus 3500. The tradeoff is weight.
At 113.5 lbs, the Pro 3 is roughly 14 lbs heavier than the 99.2 lb Delta Pro, making it noticeably harder to move around a job site or load into a vehicle.
Overall Winner
DELTA Pro 3
Powers 48 of 53 tested devices vs 47 for Delta Pro
Home backup: Tie RV / mobile: Delta Pro Solar: DELTA Pro 3
DELTA Pro 3 wins overall, but the best pick depends on your use case.
Choose Delta Pro if...
- + Portability matters (99 lbs vs 114)
Choose DELTA Pro 3 if...
- + You want faster solar recharging
- + You need 240V-capable loads
- + You want broader device compatibility
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 Pro 3,600 W
DELTA Pro 3 4,000 W
DELTA Pro 3: +400 W (+11.1%).
Surge Power
Higher is better | Scale max: 8,000 W | DELTA Pro 3 leads
Delta Pro 7,200 W
DELTA Pro 3 8,000 W
DELTA Pro 3: +800 W (+11.1%).
Weight
Lower is better | Scale best: 99.2 lbs | Delta Pro leads
Delta Pro 99.2 lbs (45.0 kg)
DELTA Pro 3 113.5 lbs (51.5 kg)
Delta Pro: -14.3 lbs (12.6% lighter).
Battery Life
Higher is better | Scale max: 4,000 cycles | DELTA Pro 3 leads
Delta Pro 3,500 cycles
DELTA Pro 3 4,000 cycles
DELTA Pro 3: +500 cycles (+14.3%).
Compatibility Coverage
These two stations produce the same result on 52 of 53 devices. There is 1 difference.
Both can run: 47 · Differences: 2% (1/53) · Neither can run: 5
Neither can run · 5 devices
These are 240V or high-voltage devices — neither station supports them.
Electric Water Heater (50 Gal)
Central AC (3-Ton)
Electric Clothes Dryer
RV Rooftop AC (13,500 BTU)
Pancake Air Compressor (6-Gallon)
Full Specs Comparison
| Spec | Delta Pro | DELTA Pro 3 |
|---|---|---|
| Capacity | 3,600 Wh | 4,096 Wh ✓ |
| Running Power | 3,600 W | 4,000 W ✓ |
| Surge Power | 7,200 W | 8,000 W ✓ |
| Weight | 99.2 lbs (45.0 kg) ✓ | 113.5 lbs (51.5 kg) |
| Energy Density | 80.0 Wh/kg ✓ | 79.5 Wh/kg |
| Portability Tier | heavy | stationary |
| Chemistry | LFP | LFP |
| Cycle Life | 3,500 | 4,000 ✓ |
| Expandable | Yes | Yes |
| UPS | No | No |
| AC Voltage | 120V | 120V/240V |
Solar Charging
Best-case charging profile using compatible solar panels.
Delta Pro
Faster Max solar input 1,600 W
Connector XT60i
Full charge time ~12.9h
Compatible panels 20/20
MPPT: 11-150V
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 ProDELTA Pro 3
Emergency(2)
2/22/2
2/2
2/2
Entertainment(2)
2/22/2
2/2
2/2
EV & Transportation(2)
2/22/2
2/2
2/2
Heating & Cooling(7)
6/76/7
6/7
6/7
| Device | Delta Pro | Runtime | DELTA Pro 3 | Runtime |
|---|---|---|---|---|
| Box Fan (20-inch) | Safe | 30.4h | Safe | 34.5h |
| Central AC (3-Ton) | Voltage Fail | N/A | Fail | N/A |
| Dehumidifier (70 Pint) | Safe | 2.9h | Safe | 3.3h |
| Gas Furnace Fan (Blower) | Safe | 2.4h | Safe | 2.7h |
| Portable AC (12,000 BTU) | Safe | 1.9h | Safe | 2.1h |
| Space Heater (1,500W) | Safe | 1.7h | Safe | 1.9h |
| Window AC (8,000 BTU) | Safe | 3.5h | Safe | 4h |
Home Infrastructure(3)
1/32/3
1/3
2/3
| Device | Delta Pro | Runtime | DELTA Pro 3 | Runtime |
|---|---|---|---|---|
| Electric Water Heater (50 Gal) | Voltage Fail | N/A | Fail | N/A |
| Garage Door Opener (Residential) | Safe | 14h | Safe | 15.9h |
| Well Pump (1 HP) | Voltage Fail | N/A | Tight | 1.2h |
Kitchen Appliances(11)
11/1111/11
11/11
11/11
| Device | Delta Pro | Runtime | DELTA Pro 3 | Runtime |
|---|---|---|---|---|
| 2-Slice Bread Toaster | Safe | 1.7h | Safe | 1.9h |
| Coffee Maker | Safe | 1.6h | Safe | 1.8h |
| Digital Air Fryer | Safe | 1.5h | Safe | 1.7h |
| Electric Skillet | Safe | 1.7h | Safe | 1.9h |
| Electric Stove (Single Burner) | Safe | 1.4h | Safe | 1.6h |
| Electric Water Kettle | Safe | 1.7h | Safe | 1.9h |
| Instant Pot (6 Qt) | Safe | 1.7h | Safe | 2h |
| Microwave Oven (1000W) | Safe | 1.3h | Safe | 1.5h |
| Rice Cooker | Safe | 2.7h | Safe | 3h |
| Slow Cooker | Safe | 8.4h | Safe | 9.6h |
| Toaster Oven | Safe | 1.4h | 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)
4/54/5
4/5
4/5
| Device | Delta Pro | Runtime | DELTA Pro 3 | Runtime |
|---|---|---|---|---|
| Circular Saw (Corded) | Safe | 1.4h | Safe | 1.6h |
| Corded Drill / Hammer Drill | Safe | 2.3h | Safe | 2.7h |
| Electric Chainsaw (14-inch) | Safe | 1.4h | Safe | 1.6h |
| Pancake Air Compressor (6-Gallon) | Soft Start | 1.6h | Soft Start | 1.8h |
| Shop Vac (Wet/Dry, 5-6 HP Peak) | Safe | 1.8h | Safe | 2.1h |
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The Bottom Line
The original Delta Pro still makes sense for buyers who need strong whole-home backup but prioritize portability, since it delivers 3600W in a lighter 99.2 lb package. The DELTA Pro 3 is the better fit for users who want maximum device coverage, longer cycle life, and faster solar charging from a larger panel array. Our pick is the DELTA Pro 3, which scored 96 to the Delta Pro's 95 and handled one more device in compatibility testing.
Delta Pro vs DELTA Pro 3 FAQ
Q Which is better for home backup, Delta Pro 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 Pro 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 Pro has the faster best-case solar recharge profile in our panel compatibility test set.
Q Which is more portable, Delta Pro or DELTA Pro 3?
Delta Pro is lighter at 99.2 lbs vs 113.5 lbs. Delta Pro is rated heavy for portability.
Q How many devices can each power station run?
DELTA Pro 3 powers 48 of 53 tested devices, compared to 47 for Delta Pro.