Capacity
Higher is better | Scale max: 2,048 Wh | DELTA 2 Max leads
DELTA 2 Max 2,048 Wh
DELTA 3 Plus 1,024 Wh
DELTA 2 Max: +1,024 Wh (+100.0%).
DELTA 2 Max vs DELTA 3 Plus
VS
2,400W
Running power
1,800W
2,048 Wh
Battery
1,024 Wh
50.7 lbs
Weight
27.6 lbs
At a Glance
This comparison targets buyers weighing raw capacity against portability within EcoFlow's own lineup. The DELTA 2 Max delivers 2400W of running power backed by a 2048 Wh battery, powering 45 out of 53 devices in our compatibility test. The DELTA 3 Plus runs at 1800W with 1024 Wh, covering 42 of those same devices.
That three-device gap matters most for high-draw appliances in a home backup scenario. Capacity tells a similar story: the 2 Max holds twice the energy, making it far better suited to overnight outages or extended off-grid use. On the flip side, the 3 Plus weighs just 27.6 lbs versus 50.7 lbs for the 2 Max, and it charges via solar in roughly half the time (3.7 hours vs. 7.3 hours at 1000W input).
It also offers 4000 charge cycles compared to 3000, adding long-term durability. The tradeoff is straightforward: more power and capacity or more portability and faster solar turnaround.
Overall Winner
DELTA 2 Max
Powers 45 of 53 tested devices vs 42 for DELTA 3 Plus
Home backup: DELTA 2 Max RV / mobile: DELTA 3 Plus Solar: DELTA 3 Plus
DELTA 2 Max wins overall, but the best pick depends on your use case.
Choose DELTA 2 Max if...
- + You want broader device compatibility
- + You need all-day runtime headroom
Choose DELTA 3 Plus if...
- + Portability matters (28 lbs vs 51)
- + 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: 2,400 W | DELTA 2 Max leads
DELTA 2 Max 2,400 W
DELTA 3 Plus 1,800 W
DELTA 2 Max: +600 W (+33.3%).
Surge Power
Higher is better | Scale max: 4,800 W | DELTA 2 Max leads
DELTA 2 Max 4,800 W
DELTA 3 Plus 3,600 W
DELTA 2 Max: +1,200 W (+33.3%).
Weight
Lower is better | Scale best: 27.6 lbs | DELTA 3 Plus leads
DELTA 2 Max 50.7 lbs (23.0 kg)
DELTA 3 Plus 27.6 lbs (12.5 kg)
DELTA 3 Plus: -23.1 lbs (45.7% lighter).
Battery Life
Higher is better | Scale max: 4,000 cycles | DELTA 3 Plus leads
DELTA 2 Max 3,000 cycles
DELTA 3 Plus 4,000 cycles
DELTA 3 Plus: +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: 42 · Differences: 6% (3/53) · Neither can run: 8
Neither can run · 8 devices
These are 240V or high-voltage devices — neither station supports them.
Central AC (3-Ton)
Circular Saw (Corded)
Electric Chainsaw (14-inch)
Pancake Air Compressor (6-Gallon)
Electric Water Heater (50 Gal)
Well Pump (1 HP)
Electric Clothes Dryer
RV Rooftop AC (13,500 BTU)
Full Specs Comparison
| Spec | DELTA 2 Max | DELTA 3 Plus |
|---|---|---|
| Capacity | 2,048 Wh ✓ | 1,024 Wh |
| Running Power | 2,400 W ✓ | 1,800 W |
| Surge Power | 4,800 W ✓ | 3,600 W |
| Weight | 50.7 lbs (23.0 kg) | 27.6 lbs (12.5 kg) ✓ |
| Energy Density | 89.0 Wh/kg ✓ | 81.9 Wh/kg |
| Portability Tier | portable | portable |
| Chemistry | LFP | LFP |
| Cycle Life | 3,000 | 4,000 ✓ |
| Expandable | Yes | Yes |
| UPS | No | No |
| AC Voltage | 120V | 120V |
Solar Charging
Best-case charging profile using compatible solar panels.
DELTA 2 Max
Max solar input 1,000 W
Connector XT60i
Full charge time ~7.3h
Compatible panels 19/20
MPPT: 11-60V
DELTA 3 Plus
Faster Max solar input 1,000 W
Connector XT60i
Full charge time ~3.7h
Compatible panels 19/20
MPPT: 11-60V
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 3 Plus
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 2 Max | Runtime | DELTA 3 Plus | Runtime |
|---|---|---|---|---|
| Box Fan (20-inch) | Safe | 17.3h | Safe | 8.6h |
| Central AC (3-Ton) | Voltage Fail | N/A | Voltage Fail | N/A |
| Dehumidifier (70 Pint) | Safe | 1.7h | Tight | 0.8h |
| Gas Furnace Fan (Blower) | Safe | 1.4h | Safe | 0.7h |
| Portable AC (12,000 BTU) | Tight | 1.1h | Soft Start | 0.5h |
| Space Heater (1,500W) | Safe | 1h | Safe | 0.5h |
| Window AC (8,000 BTU) | Safe | 2h | Safe | 1h |
Home Infrastructure(3)
1/31/3
1/3
1/3
| Device | DELTA 2 Max | Runtime | DELTA 3 Plus | Runtime |
|---|---|---|---|---|
| Electric Water Heater (50 Gal) | Voltage Fail | N/A | Voltage Fail | N/A |
| Garage Door Opener (Residential) | Safe | 8h | Safe | 4h |
| Well Pump (1 HP) | Voltage Fail | N/A | Voltage Fail | N/A |
Kitchen Appliances(11)
11/1110/11
11/11
10/11
| Device | DELTA 2 Max | Runtime | DELTA 3 Plus | Runtime |
|---|---|---|---|---|
| 2-Slice Bread Toaster | Safe | 1h | Safe | 0.5h |
| Coffee Maker | Safe | 0.9h | Safe | 0.4h |
| Digital Air Fryer | Safe | 0.8h | Tight | 0.4h |
| Electric Skillet | Safe | 1h | Safe | 0.5h |
| Electric Stove (Single Burner) | Safe | 0.8h | Tight | 0.4h |
| Electric Water Kettle | Safe | 1h | Safe | 0.5h |
| Instant Pot (6 Qt) | Safe | 1h | Safe | 0.5h |
| Microwave Oven (1000W) | Safe | 0.7h | Fail | N/A |
| Rice Cooker | Safe | 1.5h | Safe | 0.8h |
| Slow Cooker | Safe | 4.8h | Safe | 2.4h |
| Toaster Oven | Safe | 0.8h | Tight | 0.4h |
Large Appliances(4)
3/43/4
3/4
3/4
| Device | DELTA 2 Max | Runtime | DELTA 3 Plus | Runtime |
|---|---|---|---|---|
| Dishwasher | Safe | 0.8h | Tight | 0.4h |
| Electric Clothes Dryer | Voltage Fail | N/A | Voltage Fail | N/A |
| French Door Refrigerator | Safe | 6.9h | Safe | 3.5h |
| Washing Machine | Safe | 1.1h | Safe | 0.6h |
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)
2/51/5
2/5
1/5
As an Amazon Associate, we earn from qualifying purchases. Our methodology
The Bottom Line
Pick the DELTA 2 Max if you need maximum device coverage and a large energy reserve for home backup or heavy-load situations. Choose the DELTA 3 Plus if weight and solar recharge speed are your priorities, especially for camping or mobile setups where 1024 Wh is enough. With an overall score of 88.5 versus 76.5, the DELTA 2 Max is the stronger all-around performer and our pick for most buyers.
DELTA 2 Max vs DELTA 3 Plus FAQ
Q Which is better for home backup, DELTA 2 Max or DELTA 3 Plus?
DELTA 2 Max 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 3 Plus?
DELTA 2 Max has higher battery capacity (2,048 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 2 Max or DELTA 3 Plus?
DELTA 3 Plus is lighter at 27.6 lbs vs 50.7 lbs. DELTA 3 Plus is rated portable for portability.
Q How many devices can each power station run?
DELTA 2 Max powers 45 of 53 tested devices, compared to 42 for DELTA 3 Plus.