Capacity
Higher is better | Scale max: 1,024 Wh | DELTA 2 leads
DELTA 2 1,024 Wh
RIVER 2 Pro 768 Wh
DELTA 2: +256 Wh (+33.3%).
DELTA 2 vs RIVER 2 Pro
1,800W
Running power
800W
1,024 Wh
Battery
768 Wh
26.5 lbs
Weight
18.3 lbs
At a Glance
This comparison targets buyers choosing between two EcoFlow LFP stations that share the same 3,000-cycle longevity but sit in different capability tiers. The DELTA 2 delivers 1,800W of running power with 2,700W surge and a 1,024 Wh battery, while the RIVER 2 Pro tops out at 800W running, 1,600W surge, and 768 Wh.
That gap shows up clearly in device coverage: the DELTA 2 powered 39 of 53 tested devices compared to just 22 for the RIVER 2 Pro. Solar recharge also favors the larger unit, accepting up to 500W of panel input for a 3.7-hour charge versus 220W and roughly 5 hours on the RIVER 2 Pro.
The tradeoff is weight and bulk. At 18.3 lbs, the RIVER 2 Pro is about 8 lbs lighter, making it noticeably easier to grab for day trips or car camping where heavy appliances are not part of the plan.
Overall Winner
DELTA 2
Powers 39 of 53 tested devices vs 22 for RIVER 2 Pro
Home backup: DELTA 2 RV / mobile: RIVER 2 Pro Solar: DELTA 2
DELTA 2 wins overall, but the best pick depends on your use case.
Choose DELTA 2 if...
- + You want faster solar recharging
- + You want future battery expansion
- + You want broader device compatibility
- + You need all-day runtime headroom
Choose RIVER 2 Pro if...
- + Portability matters (18 lbs vs 27)
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: 1,800 W | DELTA 2 leads
DELTA 2 1,800 W
RIVER 2 Pro 800 W
DELTA 2: +1,000 W (+125.0%).
Surge Power
Higher is better | Scale max: 2,700 W | DELTA 2 leads
DELTA 2 2,700 W
RIVER 2 Pro 1,600 W
DELTA 2: +1,100 W (+68.8%).
Weight
Lower is better | Scale best: 18.3 lbs | RIVER 2 Pro leads
DELTA 2 26.5 lbs (12.0 kg)
RIVER 2 Pro 18.3 lbs (8.3 kg)
RIVER 2 Pro: -8.2 lbs (30.8% lighter).
Battery Life
Higher is better | Scale max: 3,000 cycles | Tie
DELTA 2 3,000 cycles
RIVER 2 Pro 3,000 cycles
Delta: Tie (0%).
Where Compatibility Actually Differs
Out of 53 devices tested, 17 show a different result between these two stations.
Both can run: 22 · Differences: 32% (17/53) · Neither can run: 14
Only DELTA 2 can run 17
Digital Air Fryer RIVER 2 Pro: Running + surge shortfall
Electric Stove (Single Burner) RIVER 2 Pro: Running + surge shortfall
Toaster Oven RIVER 2 Pro: Running + surge shortfall
2-Slice Bread Toaster RIVER 2 Pro: Running shortfall
Coffee Maker RIVER 2 Pro: Running shortfall
Electric Skillet RIVER 2 Pro: Running shortfall
Electric Water Kettle RIVER 2 Pro: Running shortfall
Instant Pot (6 Qt) RIVER 2 Pro: Running shortfall
Rice Cooker RIVER 2 Pro: Running shortfall
Gas Furnace Fan (Blower) RIVER 2 Pro: Running + surge shortfall
Space Heater (1,500W) RIVER 2 Pro: Running shortfall
Window AC (8,000 BTU) RIVER 2 Pro: Surge shortfall
Dishwasher RIVER 2 Pro: Running + surge shortfall
Washing Machine RIVER 2 Pro: Running shortfall
Desktop PC (Gaming/Workstation) RIVER 2 Pro: Running shortfall
EV Charger (Level 1, 120V) RIVER 2 Pro: Running shortfall
Professional Hair Dryer RIVER 2 Pro: Running + surge shortfall
Neither can run · 14 devices
These devices have startup surges that exceed both stations.
Microwave Oven (1000W)
Central AC (3-Ton)
Dehumidifier (70 Pint)
Portable AC (12,000 BTU)
Electric Clothes Dryer
Sump Pump (1/2 HP)
Electric Water Heater (50 Gal)
Well Pump (1 HP)
RV Rooftop AC (13,500 BTU)
Circular Saw (Corded)
Corded Drill / Hammer Drill
Electric Chainsaw (14-inch)
Pancake Air Compressor (6-Gallon)
Shop Vac (Wet/Dry, 5-6 HP Peak)
Full Specs Comparison
| Spec | DELTA 2 | RIVER 2 Pro |
|---|---|---|
| Capacity | 1,024 Wh ✓ | 768 Wh |
| Running Power | 1,800 W ✓ | 800 W |
| Surge Power | 2,700 W ✓ | 1,600 W |
| Weight | 26.5 lbs (12.0 kg) | 18.3 lbs (8.3 kg) ✓ |
| Energy Density | 85.3 Wh/kg | 92.5 Wh/kg ✓ |
| Portability Tier | portable | ultralight |
| Chemistry | LFP | LFP |
| Cycle Life | 3,000 | 3,000 |
| Expandable | Yes | No |
| UPS | No | No |
| AC Voltage | 120V | 120V |
Solar Charging
Best-case charging profile using compatible solar panels.
DELTA 2
Faster Max solar input 500 W
Connector XT60i
Full charge time ~3.7h
Compatible panels 19/20
MPPT: 11-60V
RIVER 2 Pro
Max solar input 220 W
Connector XT60i
Full charge time ~5.0h
Compatible panels 17/20
MPPT: 11-50V
Charge speed comparison
Longer bar = faster charge (inverted scale)
Device Compatibility
All tested devices grouped by category. Click a category to expand.
DELTA 2RIVER 2 Pro
Emergency(2)
1/21/2
1/2
1/2
| Device | DELTA 2 | Runtime | RIVER 2 Pro | Runtime |
|---|---|---|---|---|
| Full-Size Freezer (15-17 Cu. Ft.) | Safe | 4.5h | Safe | 3.4h |
| Sump Pump (1/2 HP) | Soft Start | 0.6h | Fail | N/A |
Entertainment(2)
2/21/2
2/2
1/2
EV & Transportation(2)
2/21/2
2/2
1/2
Heating & Cooling(7)
4/71/7
4/7
1/7
| Device | DELTA 2 | Runtime | RIVER 2 Pro | Runtime |
|---|---|---|---|---|
| Box Fan (20-inch) | Safe | 8.6h | Safe | 6.5h |
| Central AC (3-Ton) | Voltage Fail | N/A | Voltage Fail | N/A |
| Dehumidifier (70 Pint) | Soft Start | 0.8h | Fail | N/A |
| Gas Furnace Fan (Blower) | Tight | 0.7h | Fail | N/A |
| Portable AC (12,000 BTU) | Soft Start | 0.5h | Fail | N/A |
| Space Heater (1,500W) | Safe | 0.5h | Fail | N/A |
| Window AC (8,000 BTU) | Safe | 1h | Fail | N/A |
Home Infrastructure(3)
1/31/3
1/3
1/3
| Device | DELTA 2 | Runtime | RIVER 2 Pro | Runtime |
|---|---|---|---|---|
| Electric Water Heater (50 Gal) | Voltage Fail | N/A | Voltage Fail | N/A |
| Garage Door Opener (Residential) | Safe | 4h | Safe | 3h |
| Well Pump (1 HP) | Voltage Fail | N/A | Voltage Fail | N/A |
Kitchen Appliances(11)
10/111/11
10/11
1/11
| Device | DELTA 2 | Runtime | RIVER 2 Pro | Runtime |
|---|---|---|---|---|
| 2-Slice Bread Toaster | Safe | 0.5h | Fail | N/A |
| Coffee Maker | Safe | 0.4h | Fail | N/A |
| Digital Air Fryer | Tight | 0.4h | Fail | N/A |
| Electric Skillet | Safe | 0.5h | Fail | N/A |
| Electric Stove (Single Burner) | Tight | 0.4h | Fail | N/A |
| Electric Water Kettle | Safe | 0.5h | Fail | N/A |
| Instant Pot (6 Qt) | Safe | 0.5h | Fail | N/A |
| Microwave Oven (1000W) | Fail | N/A | Fail | N/A |
| Rice Cooker | Safe | 0.8h | Fail | N/A |
| Slow Cooker | Safe | 2.4h | Safe | 1.8h |
| Toaster Oven | Tight | 0.4h | Fail | N/A |
Large Appliances(4)
3/41/4
3/4
1/4
| Device | DELTA 2 | Runtime | RIVER 2 Pro | Runtime |
|---|---|---|---|---|
| Dishwasher | Tight | 0.4h | Fail | N/A |
| Electric Clothes Dryer | Voltage Fail | N/A | Voltage Fail | N/A |
| French Door Refrigerator | Safe | 3.5h | Safe | 2.6h |
| Washing Machine | Safe | 0.6h | Fail | N/A |
Medical(4)
4/44/4
4/4
4/4
Outdoor & RV(6)
5/65/6
5/6
5/6
Personal Care(2)
2/21/2
2/2
1/2
Power Tools(5)
0/50/5
0/5
0/5
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The Bottom Line
Pick the DELTA 2 if you need reliable home backup power or want to run larger appliances, tools, and kitchen gear; its 1,800W output and expandable battery cover nearly twice the device range in testing. The RIVER 2 Pro makes sense for travelers and minimalist campers who prioritize portability and only need to charge phones, laptops, a mini fridge, or similar low-draw electronics. With a compatibility score of 73.5 versus 44, the DELTA 2 is the clear overall winner for most buyers.
DELTA 2 vs RIVER 2 Pro FAQ
Q Which is better for home backup, DELTA 2 or RIVER 2 Pro?
DELTA 2 is the stronger overall choice in this matchup based on weighted compatibility across 53 tested devices.
Q Which has longer runtime, DELTA 2 or RIVER 2 Pro?
DELTA 2 has higher battery capacity (1,024 Wh), which generally supports longer runtime on the same load.
Q Which charges faster with solar panels?
DELTA 2 has the faster best-case solar recharge profile in our panel compatibility test set.
Q Which is more portable, DELTA 2 or RIVER 2 Pro?
RIVER 2 Pro is lighter at 18.3 lbs vs 26.5 lbs. RIVER 2 Pro is rated ultralight for portability.
Q How many devices can each power station run?
DELTA 2 powers 39 of 53 tested devices, compared to 22 for RIVER 2 Pro.
Q Can you expand the battery capacity of DELTA 2 or RIVER 2 Pro?
Only DELTA 2 supports expansion batteries for additional capacity. RIVER 2 Pro is limited to its built-in 768 Wh.