Capacity
Higher is better | Scale max: 4,096 Wh | DELTA Pro 3 leads
DELTA Pro 3 4,096 Wh
Yeti Pro 4000 3,993.6 Wh
DELTA Pro 3: +102 Wh (+2.6%).
DELTA Pro 3 vs Yeti Pro 4000
VS
4,000W
Running power
3,600W
4,096 Wh
Battery
3,993.6 Wh
113.5 lbs
Weight
115.7 lbs
At a Glance
This comparison targets buyers shopping for a high-capacity LFP power station for home backup or extended off-grid use. The DELTA Pro 3 edges ahead with 4000W of running power and an 8000W surge rating, compared to the Yeti Pro 4000's 3600W output and 7200W surge.
That extra 400W of continuous power helped the EcoFlow unit pass 48 out of 53 devices in our compatibility testing, while the Goal Zero model passed 47. Battery capacity is close, with the DELTA Pro 3 holding 4096 Wh versus 3993.6 Wh for the Yeti Pro 4000.
Both share 4000-cycle longevity and expandable designs. The tradeoff: Goal Zero's station accepts up to 3000W of solar input, 400W more than EcoFlow's 2600W max, which translates to a slightly faster full solar charge time of 14.3 hours versus 14.6 hours.
Overall Winner
DELTA Pro 3
Powers 48 of 53 tested devices vs 47 for Yeti Pro 4000
Home backup: Tie RV / mobile: Tie Solar: Tie
Choose DELTA Pro 3 if...
- + Portability matters for your setup
- + You need 240V-capable loads
- + You want broader device compatibility
Choose Yeti Pro 4000 if...
- + You prefer this brand ecosystem and support channel
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 4,000 W
Yeti Pro 4000 3,600 W
DELTA Pro 3: +400 W (+11.1%).
Surge Power
Higher is better | Scale max: 8,000 W | DELTA Pro 3 leads
DELTA Pro 3 8,000 W
Yeti Pro 4000 7,200 W
DELTA Pro 3: +800 W (+11.1%).
Weight
Lower is better | Scale best: 113.5 lbs | DELTA Pro 3 leads
DELTA Pro 3 113.5 lbs (51.5 kg)
Yeti Pro 4000 115.7 lbs (52.5 kg)
DELTA Pro 3: -2.2 lbs (1.9% lighter).
Battery Life
Higher is better | Scale max: 4,000 cycles | Tie
DELTA Pro 3 4,000 cycles
Yeti Pro 4000 4,000 cycles
Delta: Tie (0%).
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 devices draw more continuous watts than either station can deliver.
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 3 | Yeti Pro 4000 |
|---|---|---|
| Capacity | 4,096 Wh ✓ | 3,993.6 Wh |
| Running Power | 4,000 W ✓ | 3,600 W |
| Surge Power | 8,000 W ✓ | 7,200 W |
| Weight | 113.5 lbs (51.5 kg) ✓ | 115.7 lbs (52.5 kg) |
| Energy Density | 79.5 Wh/kg ✓ | 76.1 Wh/kg |
| Portability Tier | stationary | stationary |
| Chemistry | LFP | LFP |
| Cycle Life | 4,000 | 4,000 |
| Expandable | Yes | Yes |
| UPS | No | No |
| AC Voltage | 120V/240V | 120V |
Solar Charging
Best-case charging profile using compatible solar panels.
DELTA Pro 3
Max solar input 2,600 W
Connector XT60 + XT60i
Full charge time ~14.6h
Compatible panels 20/20
MPPT: 30-150V
Yeti Pro 4000
Faster Max solar input 3,000 W
Connector Proprietary + DC7909
Full charge time ~14.3h
Compatible panels 20/20
MPPT: 13.3-145V
Charge speed comparison
Longer bar = faster charge (inverted scale)
Device Compatibility
All tested devices grouped by category. Click a category to expand.
DELTA Pro 3Yeti Pro 4000
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 3 | Runtime | Yeti Pro 4000 | Runtime |
|---|---|---|---|---|
| Box Fan (20-inch) | Safe | 34.5h | Safe | 33.7h |
| Central AC (3-Ton) | Fail | N/A | Voltage Fail | N/A |
| Dehumidifier (70 Pint) | Safe | 3.3h | Safe | 3.3h |
| Gas Furnace Fan (Blower) | Safe | 2.7h | Safe | 2.6h |
| Portable AC (12,000 BTU) | Safe | 2.1h | Safe | 2.1h |
| Space Heater (1,500W) | Safe | 1.9h | Safe | 1.9h |
| Window AC (8,000 BTU) | Safe | 4h | Safe | 3.9h |
Home Infrastructure(3)
2/31/3
2/3
1/3
| Device | DELTA Pro 3 | Runtime | Yeti Pro 4000 | Runtime |
|---|---|---|---|---|
| Electric Water Heater (50 Gal) | Fail | N/A | Voltage Fail | N/A |
| Garage Door Opener (Residential) | Safe | 15.9h | Safe | 15.5h |
| Well Pump (1 HP) | Tight | 1.2h | Voltage Fail | N/A |
Kitchen Appliances(11)
11/1111/11
11/11
11/11
| Device | DELTA Pro 3 | Runtime | Yeti Pro 4000 | Runtime |
|---|---|---|---|---|
| 2-Slice Bread Toaster | Safe | 1.9h | Safe | 1.9h |
| Coffee Maker | Safe | 1.8h | Safe | 1.7h |
| Digital Air Fryer | Safe | 1.7h | Safe | 1.6h |
| Electric Skillet | Safe | 1.9h | Safe | 1.9h |
| Electric Stove (Single Burner) | Safe | 1.6h | Safe | 1.6h |
| Electric Water Kettle | Safe | 1.9h | Safe | 1.9h |
| Instant Pot (6 Qt) | Safe | 2h | Safe | 1.9h |
| Microwave Oven (1000W) | Safe | 1.5h | Safe | 1.5h |
| Rice Cooker | Safe | 3h | Safe | 3h |
| Slow Cooker | Safe | 9.6h | Safe | 9.3h |
| Toaster Oven | Safe | 1.6h | 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 3 | Runtime | Yeti Pro 4000 | Runtime |
|---|---|---|---|---|
| Circular Saw (Corded) | Safe | 1.6h | Safe | 1.6h |
| Corded Drill / Hammer Drill | Safe | 2.7h | Safe | 2.6h |
| Electric Chainsaw (14-inch) | Safe | 1.6h | Safe | 1.6h |
| Pancake Air Compressor (6-Gallon) | Soft Start | 1.8h | Soft Start | 1.7h |
| Shop Vac (Wet/Dry, 5-6 HP Peak) | Safe | 2.1h | Safe | 2h |
As an Amazon Associate, we earn from qualifying purchases. Our methodology
The Bottom Line
Buyers who need the highest device coverage and maximum surge headroom for demanding appliances should pick the DELTA Pro 3. If faster solar charging is a priority and 3600W of continuous output covers your loads, the Yeti Pro 4000 is a strong alternative.
Our overall pick is the DELTA Pro 3, scoring 96 to the Yeti Pro 4000's 95, thanks to its higher power output and broader compatibility. In our 53-device benchmark, DELTA Pro 3 powers 48 devices and Yeti Pro 4000 powers 47.
DELTA Pro 3 vs Yeti Pro 4000 FAQ
Q Which is better for home backup, DELTA Pro 3 or Yeti Pro 4000?
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 3 or Yeti Pro 4000?
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?
Yeti Pro 4000 has the faster best-case solar recharge profile in our panel compatibility test set.
Q Which is more portable, DELTA Pro 3 or Yeti Pro 4000?
DELTA Pro 3 is lighter at 113.5 lbs vs 115.7 lbs. DELTA Pro 3 is rated stationary for portability.
Q How many devices can each power station run?
DELTA Pro 3 powers 48 of 53 tested devices, compared to 47 for Yeti Pro 4000.