Capacity
Yeti 1500X: +748 Wh (+97.4%).
This comparison targets buyers weighing raw power and device coverage against portability and long-term battery life. The Yeti 1500X delivers 2,000W of running power and 1,516 Wh of capacity, nearly doubling the RIVER 2 Pro on both counts.
That advantage shows up in real-world testing: the Yeti powers 43 of 53 devices compared to 22 for the RIVER 2 Pro, giving it a decisive edge for home backup and running higher-draw appliances. Solar recharge speed is comparable at roughly five hours each, but the Yeti accepts up to 600W of solar input versus 220W, offering more flexibility with larger panel arrays.
The tradeoff is significant. EcoFlow's unit weighs just 18.3 lbs and uses LFP chemistry rated for 3,000 cycles, while the Yeti tips the scales at 45.6 lbs with an NMC pack rated for only 500 cycles.
Overall Winner
Yeti 1500X
Powers 43 of 53 tested devices vs 22 for RIVER 2 Pro
Yeti 1500X wins overall, but the best pick depends on your use case.
Absolute values shown. Bars are scaled within this comparison for readability.
Each metric is independent. Bar lengths are not comparable across different compare pages.
Yeti 1500X: +748 Wh (+97.4%).
Yeti 1500X: +1,200 W (+150.0%).
Yeti 1500X: +1,900 W (+118.8%).
RIVER 2 Pro: -27.3 lbs (59.9% lighter).
RIVER 2 Pro: +2,500 cycles (+500.0%).
Out of 53 devices tested, 21 show a different result between these two stations.
Both can run: 22 · Differences: 40% (21/53) · Neither can run: 10
Digital Air Fryer RIVER 2 Pro: Running + surge shortfall
Electric Stove (Single Burner) RIVER 2 Pro: Running + surge shortfall
Microwave Oven (1000W) 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
Dehumidifier (70 Pint) RIVER 2 Pro: Running + surge 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
Sump Pump (1/2 HP) RIVER 2 Pro: Running + surge 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
Corded Drill / Hammer Drill RIVER 2 Pro: Running + surge shortfall
These devices exceed both stations on running power and surge.
Central AC (3-Ton)
Portable AC (12,000 BTU)
Electric Clothes Dryer
Circular Saw (Corded)
Electric Chainsaw (14-inch)
Pancake Air Compressor (6-Gallon)
Shop Vac (Wet/Dry, 5-6 HP Peak)
Electric Water Heater (50 Gal)
Well Pump (1 HP)
RV Rooftop AC (13,500 BTU)
| Spec | RIVER 2 Pro | Yeti 1500X |
|---|---|---|
| Capacity | 768 Wh | 1,516 Wh ✓ |
| Running Power | 800 W | 2,000 W ✓ |
| Surge Power | 1,600 W | 3,500 W ✓ |
| Weight | 18.3 lbs (8.3 kg) ✓ | 45.6 lbs (20.7 kg) |
| Energy Density | 92.5 Wh/kg ✓ | 73.2 Wh/kg |
| Portability Tier | ultralight | portable |
| Chemistry | LFP | NMC |
| Cycle Life | 3,000 ✓ | 500 |
| Expandable | No | Yes |
| UPS | No | No |
| AC Voltage | 120V | 120V |
Best-case charging profile using compatible solar panels.
MPPT: 11-50V
MPPT: 14-50V
Charge speed comparison
Longer bar = faster charge (inverted scale)
All tested devices grouped by category. Click a category to expand.
| Device | RIVER 2 Pro | Runtime | Yeti 1500X | Runtime |
|---|---|---|---|---|
| Box Fan (20-inch) | Safe | 6.5h | Safe | 12.8h |
| Central AC (3-Ton) | Voltage Fail | N/A | Voltage Fail | N/A |
| Dehumidifier (70 Pint) | Fail | N/A | Tight | 1.2h |
| Gas Furnace Fan (Blower) | Fail | N/A | Safe | 1h |
| Portable AC (12,000 BTU) | Fail | N/A | Soft Start | 0.8h |
| Space Heater (1,500W) | Fail | N/A | Safe | 0.7h |
| Window AC (8,000 BTU) | Fail | N/A | Safe | 1.5h |
| Device | RIVER 2 Pro | Runtime | Yeti 1500X | Runtime |
|---|---|---|---|---|
| Electric Water Heater (50 Gal) | Voltage Fail | N/A | Voltage Fail | N/A |
| Garage Door Opener (Residential) | Safe | 3h | Safe | 5.9h |
| Well Pump (1 HP) | Voltage Fail | N/A | Voltage Fail | N/A |
| Device | RIVER 2 Pro | Runtime | Yeti 1500X | Runtime |
|---|---|---|---|---|
| 2-Slice Bread Toaster | Fail | N/A | Safe | 0.7h |
| Coffee Maker | Fail | N/A | Safe | 0.7h |
| Digital Air Fryer | Fail | N/A | Safe | 0.6h |
| Electric Skillet | Fail | N/A | Safe | 0.7h |
| Electric Stove (Single Burner) | Fail | N/A | Safe | 0.6h |
| Electric Water Kettle | Fail | N/A | Safe | 0.7h |
| Instant Pot (6 Qt) | Fail | N/A | Safe | 0.7h |
| Microwave Oven (1000W) | Fail | N/A | Tight | 0.6h |
| Rice Cooker | Fail | N/A | Safe | 1.1h |
| Slow Cooker | Safe | 1.8h | Safe | 3.5h |
| Toaster Oven | Fail | N/A | Safe | 0.6h |
| Device | RIVER 2 Pro | Runtime | Yeti 1500X | Runtime |
|---|---|---|---|---|
| Dishwasher | Fail | N/A | Safe | 0.6h |
| Electric Clothes Dryer | Voltage Fail | N/A | Voltage Fail | N/A |
| French Door Refrigerator | Safe | 2.6h | Safe | 5.1h |
| Washing Machine | Fail | N/A | Safe | 0.8h |
As an Amazon Associate, we earn from qualifying purchases. Our methodology
Pick the RIVER 2 Pro if portability and longevity matter most. At 18.3 lbs with a 3,000-cycle LFP battery, it suits camping, tailgating, and light-duty backup where you only need 800W of continuous output.
Choose the Yeti 1500X when device coverage and sustained high-wattage output are the priority, especially for home outages or powering tools and kitchen appliances. With an overall score of 82.5 versus 44, the Yeti 1500X is the stronger pick for most buyers who can handle its weight.
Yeti 1500X is the stronger overall choice in this matchup based on weighted compatibility across 53 tested devices.
Yeti 1500X has higher battery capacity (1,516 Wh), which generally supports longer runtime on the same load.
RIVER 2 Pro has the faster best-case solar recharge profile in our panel compatibility test set.
RIVER 2 Pro is lighter at 18.3 lbs vs 45.6 lbs. RIVER 2 Pro is rated ultralight for portability.
Yeti 1500X powers 43 of 53 tested devices, compared to 22 for RIVER 2 Pro.
Only Yeti 1500X supports expansion batteries for additional capacity. RIVER 2 Pro is limited to its built-in 768 Wh.