Capacity
Higher is better | Scale max: 4,096 Wh | DELTA Pro 3 leads
DELTA 2 Max 2,048 Wh
DELTA Pro 3 4,096 Wh
DELTA Pro 3: +2,048 Wh (+100.0%).
DELTA 2 Max vs DELTA Pro 3
VS
2,400W
Running power
4,000W
2,048 Wh
Battery
4,096 Wh
50.7 lbs
Weight
113.5 lbs
At a Glance
This comparison targets buyers choosing between two EcoFlow LFP stations that share the same chemistry but sit in different weight and output classes. The DELTA Pro 3 doubles the DELTA 2 Max on nearly every core spec: 4000W running power vs 2400W, 4096 Wh capacity vs 2048 Wh, and 8000W surge vs 4800W.
It also accepts up to 2600W of solar input, more than twice the 1000W ceiling on the DELTA 2 Max, and it powers 48 out of 53 tested devices compared to 45. Cycle life is another gap, with 4000 cycles on the Pro 3 versus 3000 on the DELTA 2 Max.
The tradeoff is size: the Pro 3 weighs 113.5 lbs, more than double the 50.7 lbs of its smaller sibling, making it far less practical for mobile or campsite use.
Overall Winner
DELTA Pro 3
Powers 48 of 53 tested devices vs 45 for DELTA 2 Max
Home backup: DELTA Pro 3 RV / mobile: DELTA 2 Max Solar: Tie
DELTA Pro 3 wins overall, but the best pick depends on your use case.
Choose DELTA 2 Max if...
- + Portability matters (51 lbs vs 114)
- + You want faster solar recharging
Choose DELTA Pro 3 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: 4,000 W | DELTA Pro 3 leads
DELTA 2 Max 2,400 W
DELTA Pro 3 4,000 W
DELTA Pro 3: +1,600 W (+66.7%).
Surge Power
Higher is better | Scale max: 8,000 W | DELTA Pro 3 leads
DELTA 2 Max 4,800 W
DELTA Pro 3 8,000 W
DELTA Pro 3: +3,200 W (+66.7%).
Weight
Lower is better | Scale best: 50.7 lbs | DELTA 2 Max leads
DELTA 2 Max 50.7 lbs (23.0 kg)
DELTA Pro 3 113.5 lbs (51.5 kg)
DELTA 2 Max: -62.8 lbs (55.3% lighter).
Battery Life
Higher is better | Scale max: 4,000 cycles | DELTA Pro 3 leads
DELTA 2 Max 3,000 cycles
DELTA Pro 3 4,000 cycles
DELTA Pro 3: +1,000 cycles (+33.3%).
Where Compatibility Actually Differs
Out of 53 devices tested, 3 show a different result between these two stations.
Both can run: 45 · Differences: 6% (3/53) · Neither can run: 5
Neither can run · 5 devices
These are 240V or high-voltage devices — neither station supports them.
Pancake Air Compressor (6-Gallon)
Electric Water Heater (50 Gal)
Central AC (3-Ton)
Electric Clothes Dryer
RV Rooftop AC (13,500 BTU)
Full Specs Comparison
| Spec | DELTA 2 Max | DELTA Pro 3 |
|---|---|---|
| Capacity | 2,048 Wh | 4,096 Wh ✓ |
| Running Power | 2,400 W | 4,000 W ✓ |
| Surge Power | 4,800 W | 8,000 W ✓ |
| Weight | 50.7 lbs (23.0 kg) ✓ | 113.5 lbs (51.5 kg) |
| Energy Density | 89.0 Wh/kg ✓ | 79.5 Wh/kg |
| Portability Tier | portable | stationary |
| Chemistry | LFP | LFP |
| Cycle Life | 3,000 | 4,000 ✓ |
| Expandable | Yes | Yes |
| UPS | No | No |
| AC Voltage | 120V | 120V/240V |
Solar Charging
Best-case charging profile using compatible solar panels.
DELTA 2 Max
Faster Max solar input 1,000 W
Connector XT60i
Full charge time ~7.3h
Compatible panels 19/20
MPPT: 11-60V
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 2 MaxDELTA 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 2 Max | Runtime | DELTA Pro 3 | Runtime |
|---|---|---|---|---|
| Box Fan (20-inch) | Safe | 17.3h | Safe | 34.5h |
| Central AC (3-Ton) | Voltage Fail | N/A | Fail | N/A |
| Dehumidifier (70 Pint) | Safe | 1.7h | Safe | 3.3h |
| Gas Furnace Fan (Blower) | Safe | 1.4h | Safe | 2.7h |
| Portable AC (12,000 BTU) | Tight | 1.1h | Safe | 2.1h |
| Space Heater (1,500W) | Safe | 1h | Safe | 1.9h |
| Window AC (8,000 BTU) | Safe | 2h | Safe | 4h |
Home Infrastructure(3)
1/32/3
1/3
2/3
| Device | DELTA 2 Max | Runtime | DELTA Pro 3 | Runtime |
|---|---|---|---|---|
| Electric Water Heater (50 Gal) | Voltage Fail | N/A | Fail | N/A |
| Garage Door Opener (Residential) | Safe | 8h | 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 2 Max | Runtime | DELTA Pro 3 | Runtime |
|---|---|---|---|---|
| 2-Slice Bread Toaster | Safe | 1h | Safe | 1.9h |
| Coffee Maker | Safe | 0.9h | Safe | 1.8h |
| Digital Air Fryer | Safe | 0.8h | Safe | 1.7h |
| Electric Skillet | Safe | 1h | Safe | 1.9h |
| Electric Stove (Single Burner) | Safe | 0.8h | Safe | 1.6h |
| Electric Water Kettle | Safe | 1h | Safe | 1.9h |
| Instant Pot (6 Qt) | Safe | 1h | Safe | 2h |
| Microwave Oven (1000W) | Safe | 0.7h | Safe | 1.5h |
| Rice Cooker | Safe | 1.5h | Safe | 3h |
| Slow Cooker | Safe | 4.8h | Safe | 9.6h |
| Toaster Oven | Safe | 0.8h | 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)
2/54/5
2/5
4/5
| Device | DELTA 2 Max | Runtime | DELTA Pro 3 | Runtime |
|---|---|---|---|---|
| Circular Saw (Corded) | Fail | N/A | Safe | 1.6h |
| Corded Drill / Hammer Drill | Safe | 1.3h | Safe | 2.7h |
| Electric Chainsaw (14-inch) | Fail | N/A | Safe | 1.6h |
| Pancake Air Compressor (6-Gallon) | Soft Start | 0.9h | Soft Start | 1.8h |
| Shop Vac (Wet/Dry, 5-6 HP Peak) | Tight | 1h | Safe | 2.1h |
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The Bottom Line
Pick the DELTA 2 Max if portability matters and your loads stay under 2400W. At roughly half the weight, it handles 45 of 53 devices and remains a solid option for RV trips, tailgating, or light home backup.
The DELTA Pro 3 is the better station for whole-home backup, high-draw appliances, and large solar arrays. With a score of 96 versus 88.5, the DELTA Pro 3 is the clear winner of this matchup.
DELTA 2 Max vs DELTA Pro 3 FAQ
Q Which is better for home backup, DELTA 2 Max 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 2 Max 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 2 Max has the faster best-case solar recharge profile in our panel compatibility test set.
Q Which is more portable, DELTA 2 Max or DELTA Pro 3?
DELTA 2 Max is lighter at 50.7 lbs vs 113.5 lbs. DELTA 2 Max 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 45 for DELTA 2 Max.