Capacity
Higher is better | Scale max: 6,144 Wh | Delta Pro Ultra X leads
DELTA 3 Plus 1,024 Wh
Delta Pro Ultra X 6,144 Wh
Delta Pro Ultra X: +5,120 Wh (+500.0%).
DELTA 3 Plus vs Delta Pro Ultra X
VS
1,800W
Running power
12,000W
1,024 Wh
Battery
6,144 Wh
27.6 lbs
Weight
187.4 lbs
At a Glance
This comparison targets buyers choosing between two EcoFlow LFP stations that sit at opposite ends of the capacity spectrum. The DELTA 3 Plus delivers 1800W of running power from a 1024 Wh battery and weighs 27.6 lbs, making it a genuinely portable unit for camping, tailgating, or light home use.
The Delta Pro Ultra X is a different class entirely: 12,000W running output, 6,144 Wh of stored energy, and a 24,000W surge rating built to handle whole-home backup loads. In device compatibility testing across 53 appliances, the Pro Ultra X powered every single one, while the DELTA 3 Plus covered 42 of 53.
Solar input tells a similar story, with the Pro Ultra X accepting up to 10,000W versus 1,000W on the smaller unit. The tradeoff is weight and footprint: the Pro Ultra X tips the scales at 187.4 lbs, nearly seven times heavier than its smaller sibling.
Overall Winner
Delta Pro Ultra X
Powers 53 of 53 tested devices vs 42 for DELTA 3 Plus
Home backup: Delta Pro Ultra X RV / mobile: DELTA 3 Plus Solar: Tie
Delta Pro Ultra X wins overall, but the best pick depends on your use case.
Choose DELTA 3 Plus if...
- + Portability matters (28 lbs vs 187)
- + You want faster solar recharging
Choose Delta Pro Ultra X if...
- + You need 240V-capable loads
- + 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: 12,000 W | Delta Pro Ultra X leads
DELTA 3 Plus 1,800 W
Delta Pro Ultra X 12,000 W
Delta Pro Ultra X: +10,200 W (+566.7%).
Surge Power
Higher is better | Scale max: 24,000 W | Delta Pro Ultra X leads
DELTA 3 Plus 3,600 W
Delta Pro Ultra X 24,000 W
Delta Pro Ultra X: +20,400 W (+566.7%).
Weight
Lower is better | Scale best: 27.6 lbs | DELTA 3 Plus leads
DELTA 3 Plus 27.6 lbs (12.5 kg)
Delta Pro Ultra X 187.4 lbs (85.0 kg)
DELTA 3 Plus: -159.8 lbs (85.3% lighter).
Battery Life
Higher is better | Scale max: 4,000 cycles | DELTA 3 Plus leads
DELTA 3 Plus 4,000 cycles
Delta Pro Ultra X 3,200 cycles
DELTA 3 Plus: +800 cycles (+25.0%).
Where Compatibility Actually Differs
Out of 53 devices tested, 11 show a different result between these two stations.
Both can run: 42 · Differences: 21% (11/53)
Only Delta Pro Ultra X can run 11
Circular Saw (Corded) DELTA 3 Plus: Surge shortfall
Electric Chainsaw (14-inch) DELTA 3 Plus: Surge shortfall
Pancake Air Compressor (6-Gallon) DELTA 3 Plus: Surge shortfall
Shop Vac (Wet/Dry, 5-6 HP Peak) DELTA 3 Plus: Surge shortfall
Central AC (3-Ton) DELTA 3 Plus: Voltage mismatch
Portable AC (12,000 BTU) DELTA 3 Plus: Needs soft-start
Electric Water Heater (50 Gal) DELTA 3 Plus: Voltage mismatch
Well Pump (1 HP) DELTA 3 Plus: Voltage mismatch
Microwave Oven (1000W) DELTA 3 Plus: Running shortfall
Electric Clothes Dryer DELTA 3 Plus: Voltage mismatch
RV Rooftop AC (13,500 BTU) DELTA 3 Plus: Surge shortfall
Full Specs Comparison
| Spec | DELTA 3 Plus | Delta Pro Ultra X |
|---|---|---|
| Capacity | 1,024 Wh | 6,144 Wh ✓ |
| Running Power | 1,800 W | 12,000 W ✓ |
| Surge Power | 3,600 W | 24,000 W ✓ |
| Weight | 27.6 lbs (12.5 kg) ✓ | 187.4 lbs (85.0 kg) |
| Energy Density | 81.9 Wh/kg ✓ | 72.3 Wh/kg |
| Portability Tier | portable | stationary |
| Chemistry | LFP | LFP |
| Cycle Life | 4,000 ✓ | 3,200 |
| Expandable | Yes | Yes |
| UPS | No | No |
| AC Voltage | 120V | 120V/240V |
Solar Charging
Best-case charging profile using compatible solar panels.
DELTA 3 Plus
Faster Max solar input 1,000 W
Connector XT60i
Full charge time ~3.7h
Compatible panels 19/20
MPPT: 11-60V
Delta Pro Ultra X
Max solar input 10,000 W
Connector MC4
Full charge time ~7.3h
Compatible panels 20/20
MPPT: 80-500V
Charge speed comparison
Longer bar = faster charge (inverted scale)
Device Compatibility
All tested devices grouped by category. Click a category to expand.
DELTA 3 PlusDelta Pro Ultra X
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)
5/77/7
5/7
7/7
| Device | DELTA 3 Plus | Runtime | Delta Pro Ultra X | Runtime |
|---|---|---|---|---|
| Box Fan (20-inch) | Safe | 8.6h | Safe | 51.8h |
| Central AC (3-Ton) | Voltage Fail | N/A | Tight | 1.1h |
| Dehumidifier (70 Pint) | Tight | 0.8h | Safe | 5h |
| Gas Furnace Fan (Blower) | Safe | 0.7h | Safe | 4.1h |
| Portable AC (12,000 BTU) | Soft Start | 0.5h | Safe | 3.2h |
| Space Heater (1,500W) | Safe | 0.5h | Safe | 2.9h |
| Window AC (8,000 BTU) | Safe | 1h | Safe | 6.1h |
Home Infrastructure(3)
1/33/3
1/3
3/3
| Device | DELTA 3 Plus | Runtime | Delta Pro Ultra X | Runtime |
|---|---|---|---|---|
| Electric Water Heater (50 Gal) | Voltage Fail | N/A | Safe | 0.8h |
| Garage Door Opener (Residential) | Safe | 4h | Safe | 23.9h |
| Well Pump (1 HP) | Voltage Fail | N/A | Safe | 1.8h |
Kitchen Appliances(11)
10/1111/11
10/11
11/11
| Device | DELTA 3 Plus | Runtime | Delta Pro Ultra X | Runtime |
|---|---|---|---|---|
| 2-Slice Bread Toaster | Safe | 0.5h | Safe | 2.9h |
| Coffee Maker | Safe | 0.4h | Safe | 2.7h |
| Digital Air Fryer | Tight | 0.4h | Safe | 2.5h |
| Electric Skillet | Safe | 0.5h | Safe | 2.9h |
| Electric Stove (Single Burner) | Tight | 0.4h | Safe | 2.4h |
| Electric Water Kettle | Safe | 0.5h | Safe | 2.9h |
| Instant Pot (6 Qt) | Safe | 0.5h | Safe | 2.9h |
| Microwave Oven (1000W) | Fail | N/A | Safe | 2.2h |
| Rice Cooker | Safe | 0.8h | Safe | 4.6h |
| Slow Cooker | Safe | 2.4h | Safe | 14.3h |
| Toaster Oven | Tight | 0.4h | Safe | 2.4h |
Large Appliances(4)
3/44/4
3/4
4/4
Medical(4)
4/44/4
4/4
4/4
Outdoor & RV(6)
5/66/6
5/6
6/6
Personal Care(2)
2/22/2
2/2
2/2
Power Tools(5)
1/55/5
1/5
5/5
As an Amazon Associate, we earn from qualifying purchases. Our methodology
The Bottom Line
Pick the DELTA 3 Plus if you need a sub-30 lb station for mobile use, moderate device coverage, and 4,000-cycle longevity on a single LFP pack. Go with the Delta Pro Ultra X if your priority is full home backup, high-draw appliance support, or large-scale solar integration up to 10,000W. The Delta Pro Ultra X is the clear winner here, scoring 105 to the DELTA 3 Plus's 76.5 and passing all 53 device tests without a gap.
DELTA 3 Plus vs Delta Pro Ultra X FAQ
Q Which is better for home backup, DELTA 3 Plus or Delta Pro Ultra X?
Delta Pro Ultra X is the stronger overall choice in this matchup based on weighted compatibility across 53 tested devices.
Q Which has longer runtime, DELTA 3 Plus or Delta Pro Ultra X?
Delta Pro Ultra X has higher battery capacity (6,144 Wh), which generally supports longer runtime on the same load.
Q Which charges faster with solar panels?
DELTA 3 Plus has the faster best-case solar recharge profile in our panel compatibility test set.
Q Which is more portable, DELTA 3 Plus or Delta Pro Ultra X?
DELTA 3 Plus is lighter at 27.6 lbs vs 187.4 lbs. DELTA 3 Plus is rated portable for portability.
Q How many devices can each power station run?
Delta Pro Ultra X powers 53 of 53 tested devices, compared to 42 for DELTA 3 Plus.