Capacity
SOLIX C300: +32 Wh (+12.5%).
This comparison targets buyers shopping for a compact, sub-300W portable power station for light loads like phones, laptops, lights, and small appliances. The RIVER 2 edges ahead on device coverage, powering 17 out of 53 tested devices versus 15 for the SOLIX C300.
EcoFlow's unit also delivers a 600W surge rating, double the C300's 300W surge, which helps it start momentarily demanding loads the Anker simply cannot handle. Solar recharge favors the RIVER 2 as well: a 110W max input fills its 256 Wh battery in roughly 3.3 hours, while the C300's 100W input needs about 4.1 hours to top off 288 Wh.
The tradeoff is switchover speed. Anker's 10 ms UPS response is three times faster than EcoFlow's 30 ms, a meaningful difference if you plan to use the station as a mini home backup for sensitive electronics.
Overall Winner
RIVER 2
Powers 17 of 53 tested devices vs 15 for SOLIX C300
Absolute values shown. Bars are scaled within this comparison for readability.
Each metric is independent. Bar lengths are not comparable across different compare pages.
SOLIX C300: +32 Wh (+12.5%).
Delta: Tie (0%).
RIVER 2: +300 W (+100.0%).
RIVER 2: -1.3 lbs (14.6% lighter).
Delta: Tie (0%).
Out of 53 devices tested, 2 show a different result between these two stations.
Both can run: 15 · Differences: 4% (2/53) · Neither can run: 36
These devices exceed both stations on running power and surge.
Sump Pump (1/2 HP)
Electric Clothes Dryer
Dishwasher
Washing Machine
Desktop PC (Gaming/Workstation)
EV Charger (Level 1, 120V)
Central AC (3-Ton)
Dehumidifier (70 Pint)
Gas Furnace Fan (Blower)
Portable AC (12,000 BTU)
Space Heater (1,500W)
Window AC (8,000 BTU)
Electric Water Heater (50 Gal)
Well Pump (1 HP)
2-Slice Bread Toaster
Coffee Maker
Digital Air Fryer
Electric Skillet
Electric Stove (Single Burner)
Electric Water Kettle
Instant Pot (6 Qt)
Microwave Oven (1000W)
Rice Cooker
Toaster Oven
Electric Wheelchair Charger
Portable Oxygen Concentrator
Portable Ice Maker (Countertop)
RV Rooftop AC (13,500 BTU)
Professional Hair Dryer
Circular Saw (Corded)
Corded Drill / Hammer Drill
Electric Chainsaw (14-inch)
Pancake Air Compressor (6-Gallon)
Shop Vac (Wet/Dry, 5-6 HP Peak)
Laptop
Laser Printer
| Spec | SOLIX C300 | RIVER 2 |
|---|---|---|
| Capacity | 288 Wh ✓ | 256 Wh |
| Running Power | 300 W | 300 W |
| Surge Power | 300 W | 600 W ✓ |
| Weight | 9.0 lbs (4.1 kg) | 7.7 lbs (3.5 kg) ✓ |
| Energy Density | 70.2 Wh/kg | 73.1 Wh/kg ✓ |
| Portability Tier | ultralight | ultralight |
| Chemistry | LFP | LFP |
| Cycle Life | 3,000 | 3,000 |
| Expandable | No | No |
| UPS | Yes (10 ms) | Yes (30 ms) |
| AC Voltage | 120V | 120V |
Best-case charging profile using compatible solar panels.
MPPT: 11-28V
MPPT: 11-30V
Charge speed comparison
Longer bar = faster charge (inverted scale)
All tested devices grouped by category. Click a category to expand.
| Device | SOLIX C300 | Runtime | RIVER 2 | Runtime |
|---|---|---|---|---|
| Full-Size Freezer (15-17 Cu. Ft.) | Soft Start | 1.3h | Safe | 1.1h |
| Sump Pump (1/2 HP) | Fail | N/A | Fail | N/A |
| Device | SOLIX C300 | Runtime | RIVER 2 | Runtime |
|---|---|---|---|---|
| Box Fan (20-inch) | Safe | 2.4h | Safe | 2.2h |
| Central AC (3-Ton) | Voltage Fail | N/A | Voltage Fail | N/A |
| Dehumidifier (70 Pint) | Fail | N/A | Fail | N/A |
| Gas Furnace Fan (Blower) | Fail | N/A | Fail | N/A |
| Portable AC (12,000 BTU) | Fail | N/A | Fail | N/A |
| Space Heater (1,500W) | Fail | N/A | Fail | N/A |
| Window AC (8,000 BTU) | Fail | N/A | Fail | N/A |
| Device | SOLIX C300 | Runtime | RIVER 2 | Runtime |
|---|---|---|---|---|
| Electric Water Heater (50 Gal) | Voltage Fail | N/A | Voltage Fail | N/A |
| Garage Door Opener (Residential) | Tight | 1.1h | Safe | 1h |
| Well Pump (1 HP) | Voltage Fail | N/A | Voltage Fail | N/A |
| Device | SOLIX C300 | Runtime | RIVER 2 | Runtime |
|---|---|---|---|---|
| 2-Slice Bread Toaster | Fail | N/A | Fail | N/A |
| Coffee Maker | Fail | N/A | Fail | N/A |
| Digital Air Fryer | Fail | N/A | Fail | N/A |
| Electric Skillet | Fail | N/A | Fail | N/A |
| Electric Stove (Single Burner) | Fail | N/A | Fail | N/A |
| Electric Water Kettle | Fail | N/A | Fail | N/A |
| Instant Pot (6 Qt) | Fail | N/A | Fail | N/A |
| Microwave Oven (1000W) | Fail | N/A | Fail | N/A |
| Rice Cooker | Fail | N/A | Fail | N/A |
| Slow Cooker | Tight | 0.7h | Tight | 0.6h |
| Toaster Oven | Fail | N/A | Fail | N/A |
| Device | SOLIX C300 | Runtime | RIVER 2 | Runtime |
|---|---|---|---|---|
| Dishwasher | Fail | N/A | Fail | N/A |
| Electric Clothes Dryer | Voltage Fail | N/A | Voltage Fail | N/A |
| French Door Refrigerator | Soft Start | 1h | Safe | 0.9h |
| Washing Machine | Fail | N/A | Fail | N/A |
As an Amazon Associate, we earn from qualifying purchases. Our methodology
Pick the SOLIX C300 if fast UPS switchover matters most, since its 10 ms response better protects sensitive gear during outages, and its slightly larger 288 Wh battery adds a small capacity cushion. Go with the RIVER 2 if broader device compatibility, stronger surge handling at 600W, and faster solar charging are higher priorities. With a score of 33 to 28 and two extra devices powered in testing, the RIVER 2 is the stronger overall pick for most portable and light backup needs.
RIVER 2 is the stronger overall choice in this matchup based on weighted compatibility across 53 tested devices.
SOLIX C300 has higher battery capacity (288 Wh), which generally supports longer runtime on the same load.
RIVER 2 has the faster best-case solar recharge profile in our panel compatibility test set.
RIVER 2 is lighter at 7.7 lbs vs 9 lbs. RIVER 2 is rated ultralight for portability.
RIVER 2 powers 17 of 53 tested devices, compared to 15 for SOLIX C300.