Capacity
Higher is better | Scale max: 6,144 Wh | Delta Pro Ultra leads
Delta Pro Ultra 6,144 Wh
Yeti 1500X 1,516 Wh
Delta Pro Ultra: +4,628 Wh (+305.3%).
Delta Pro Ultra vs Yeti 1500X
VS
6,000W
Running power
2,000W
6,144 Wh
Battery
1,516 Wh
182.1 lbs
Weight
45.6 lbs
At a Glance
This comparison targets buyers choosing between a heavy-duty whole-home backup unit and a lighter, more portable power station. The Delta Pro Ultra delivers 6,000W of running power and 6,144 Wh of capacity, dwarfing the Yeti 1500X's 2,000W output and 1,516 Wh battery.
That gap shows up in device coverage: the EcoFlow unit powered 52 of 53 tested devices, while the Goal Zero handled 43 of 53. LFP chemistry gives the Delta Pro Ultra roughly 3,200 cycles versus 500 for the Yeti's NMC cells, a major factor for long-term daily use.
Solar input tells a similar story, with the EcoFlow accepting up to 5,600W compared to 600W on the Goal Zero. The tradeoff is weight and portability: at 45.6 lbs, the Yeti 1500X is roughly a quarter of the Delta Pro Ultra's 182.1 lbs, making it far easier to move between job sites, campsites, or vehicles.
Overall Winner
Delta Pro Ultra
Powers 52 of 53 tested devices vs 43 for Yeti 1500X
Home backup: Delta Pro Ultra RV / mobile: Yeti 1500X Solar: Delta Pro Ultra
Delta Pro Ultra wins overall, but the best pick depends on your use case.
Choose Delta Pro Ultra if...
- + You value battery longevity (LFP, 3,200 cycles)
- + You need 240V-capable loads
- + You want broader device compatibility
- + You need all-day runtime headroom
Choose Yeti 1500X if...
- + Portability matters (46 lbs vs 182)
- + You want faster solar recharging
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: 6,000 W | Delta Pro Ultra leads
Delta Pro Ultra 6,000 W
Yeti 1500X 2,000 W
Delta Pro Ultra: +4,000 W (+200.0%).
Surge Power
Higher is better | Scale max: 12,000 W | Delta Pro Ultra leads
Delta Pro Ultra 12,000 W
Yeti 1500X 3,500 W
Delta Pro Ultra: +8,500 W (+242.9%).
Weight
Lower is better | Scale best: 45.6 lbs | Yeti 1500X leads
Delta Pro Ultra 182.1 lbs (82.6 kg)
Yeti 1500X 45.6 lbs (20.7 kg)
Yeti 1500X: -136.5 lbs (74.9% lighter).
Battery Life
Higher is better | Scale max: 3,200 cycles | Delta Pro Ultra leads
Delta Pro Ultra 3,200 cycles
Yeti 1500X 500 cycles
Delta Pro Ultra: +2,700 cycles (+540.0%).
Where Compatibility Actually Differs
Out of 53 devices tested, 9 show a different result between these two stations.
Both can run: 43 · Differences: 17% (9/53) · Neither can run: 1
Only Delta Pro Ultra can run 9
Circular Saw (Corded) Yeti 1500X: Surge shortfall
Electric Chainsaw (14-inch) Yeti 1500X: Surge shortfall
Pancake Air Compressor (6-Gallon) Yeti 1500X: Surge shortfall
Shop Vac (Wet/Dry, 5-6 HP Peak) Yeti 1500X: Surge shortfall
Electric Water Heater (50 Gal) Yeti 1500X: Voltage mismatch
Well Pump (1 HP) Yeti 1500X: Voltage mismatch
Portable AC (12,000 BTU) Yeti 1500X: Needs soft-start
Electric Clothes Dryer Yeti 1500X: Voltage mismatch
RV Rooftop AC (13,500 BTU) Yeti 1500X: Surge shortfall
Neither can run · 1 devices
These devices have startup surges that exceed both stations.
Central AC (3-Ton)
Full Specs Comparison
| Spec | Delta Pro Ultra | Yeti 1500X |
|---|---|---|
| Capacity | 6,144 Wh ✓ | 1,516 Wh |
| Running Power | 6,000 W ✓ | 2,000 W |
| Surge Power | 12,000 W ✓ | 3,500 W |
| Weight | 182.1 lbs (82.6 kg) | 45.6 lbs (20.7 kg) ✓ |
| Energy Density | 74.4 Wh/kg ✓ | 73.2 Wh/kg |
| Portability Tier | stationary | portable |
| Chemistry | LFP | NMC |
| Cycle Life | 3,200 ✓ | 500 |
| Expandable | Yes | Yes |
| UPS | No | No |
| AC Voltage | 120V/240V | 120V |
Solar Charging
Best-case charging profile using compatible solar panels.
Delta Pro Ultra
Max solar input 5,600 W
Connector MC4
Full charge time ~8.0h
Compatible panels 20/20
MPPT: 80-450V
Yeti 1500X
Faster Max solar input 600 W
Connector Anderson + DC7909
Full charge time ~5.4h
Compatible panels 17/20
MPPT: 14-50V
Charge speed comparison
Longer bar = faster charge (inverted scale)
Device Compatibility
All tested devices grouped by category. Click a category to expand.
Delta Pro UltraYeti 1500X
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)
6/75/7
6/7
5/7
| Device | Delta Pro Ultra | Runtime | Yeti 1500X | Runtime |
|---|---|---|---|---|
| Box Fan (20-inch) | Safe | 51.8h | Safe | 12.8h |
| Central AC (3-Ton) | Fail | N/A | Voltage Fail | N/A |
| Dehumidifier (70 Pint) | Safe | 5h | Tight | 1.2h |
| Gas Furnace Fan (Blower) | Safe | 4.1h | Safe | 1h |
| Portable AC (12,000 BTU) | Safe | 3.2h | Soft Start | 0.8h |
| Space Heater (1,500W) | Safe | 2.9h | Safe | 0.7h |
| Window AC (8,000 BTU) | Safe | 6.1h | Safe | 1.5h |
Home Infrastructure(3)
3/31/3
3/3
1/3
| Device | Delta Pro Ultra | Runtime | Yeti 1500X | Runtime |
|---|---|---|---|---|
| Electric Water Heater (50 Gal) | Tight | 0.8h | Voltage Fail | N/A |
| Garage Door Opener (Residential) | Safe | 23.9h | Safe | 5.9h |
| Well Pump (1 HP) | Safe | 1.8h | Voltage Fail | N/A |
Kitchen Appliances(11)
11/1111/11
11/11
11/11
| Device | Delta Pro Ultra | Runtime | Yeti 1500X | Runtime |
|---|---|---|---|---|
| 2-Slice Bread Toaster | Safe | 2.9h | Safe | 0.7h |
| Coffee Maker | Safe | 2.7h | Safe | 0.7h |
| Digital Air Fryer | Safe | 2.5h | Safe | 0.6h |
| Electric Skillet | Safe | 2.9h | Safe | 0.7h |
| Electric Stove (Single Burner) | Safe | 2.4h | Safe | 0.6h |
| Electric Water Kettle | Safe | 2.9h | Safe | 0.7h |
| Instant Pot (6 Qt) | Safe | 2.9h | Safe | 0.7h |
| Microwave Oven (1000W) | Safe | 2.2h | Tight | 0.6h |
| Rice Cooker | Safe | 4.6h | Safe | 1.1h |
| Slow Cooker | Safe | 14.3h | Safe | 3.5h |
| Toaster Oven | Safe | 2.4h | Safe | 0.6h |
Large Appliances(4)
4/43/4
4/4
3/4
Medical(4)
4/44/4
4/4
4/4
Outdoor & RV(6)
6/65/6
6/6
5/6
Personal Care(2)
2/22/2
2/2
2/2
Power Tools(5)
5/51/5
5/5
1/5
As an Amazon Associate, we earn from qualifying purchases. Our methodology
The Bottom Line
Buyers who need serious home backup power, large solar arrays, or coverage for nearly every household device should pick the Delta Pro Ultra. The Yeti 1500X suits users who prioritize portability and need a capable station for camping, tailgating, or light emergency use.
With a score of 102 versus 82.5 and compatibility across 52 of 53 devices tested, the Delta Pro Ultra is the clear winner in this matchup. In our 53-device benchmark, Delta Pro Ultra powers 52 devices and Yeti 1500X powers 43.
Delta Pro Ultra vs Yeti 1500X FAQ
Q Which is better for home backup, Delta Pro Ultra or Yeti 1500X?
Delta Pro Ultra is the stronger overall choice in this matchup based on weighted compatibility across 53 tested devices.
Q Which has longer runtime, Delta Pro Ultra or Yeti 1500X?
Delta Pro Ultra has higher battery capacity (6,144 Wh), which generally supports longer runtime on the same load.
Q Which charges faster with solar panels?
Yeti 1500X has the faster best-case solar recharge profile in our panel compatibility test set.
Q Which is more portable, Delta Pro Ultra or Yeti 1500X?
Yeti 1500X is lighter at 45.6 lbs vs 182.1 lbs. Yeti 1500X is rated portable for portability.
Q How many devices can each power station run?
Delta Pro Ultra powers 52 of 53 tested devices, compared to 43 for Yeti 1500X.