Anker SOLIX C300 vs EcoFlow RIVER 2
Two small power stations, number by number. Neither is ranked above the other. Every spec comes from each maker's manual or product page; tap a station for the source.
- Bigger battery: Anker SOLIX C300, 288 Wh vs 243 Wh.
- More AC output: about the same (300 W vs 300 W).
- Higher surge: about the same (600 W vs 600 W).
- More solar input: EcoFlow RIVER 2, 110 W vs 100 W.
- Higher solar voltage limit: EcoFlow RIVER 2, 30 V vs 28 V.
- Lighter: EcoFlow RIVER 2, 7.7 lb vs 9.1 lb.
- Lower brand-store price: EcoFlow RIVER 2, $219 vs $430.
C300 and RIVER 2 are the same size class: within 45 Wh of each other. RIVER 2 is the lightest at 7.7 lb. RIVER 2 takes the most solar at 110 W, so it refills fastest. RIVER 2 is the cheapest at $219, and it also leads on solar input.
How long they run common devices
| Device | Anker SOLIX C300 | EcoFlow RIVER 2 |
|---|---|---|
| Fridge (60 W) | 4 hours | 3.5 hours |
| CPAP (40 W) | 6 hours | 5 hours |
| Starlink (100 W) | 2.5 hours | 2 hours |
| Laptop (60 W) | 4 hours | 3.5 hours |
On a full charge, assuming 85% of the battery is usable. Real devices vary; check the label on yours.
Every spec side by side
| Spec |  Anker SOLIX |  EcoFlow |
|---|---|---|
Battery Wh, size | 288 Wh fridge about 4 hours | 243 Wh fridge about 3.5 hours |
AC output W, continuous | 300 W CPAP, laptops, lights, phones | 300 W CPAP, laptops, lights, phones |
Surge W, a second or two | 600 W motor start-ups | 600 W motor start-ups |
Solar input W, max | 100 W full in about 4 hours | 110 W full in about 3 hours |
Solar voltage range V, panels must fit | 11 to 28 V 1 panel, or 2 in parallel | 11 to 30 V 1 panel, or 2 in parallel |
Solar inputs count | 1 input XT60 | 1 input Solar input |
Weight lb | 9.1 lb one hand | 7.7 lb one hand |
Wh per pound battery for the weight | 32 Wh/lb higher is denser | 32 Wh/lb higher is denser |
Price brand store | $430 1.49 $/Wh | $219 0.90 $/Wh |
Price per Wh what you pay for storage | $1.49 lower is better value | $0.90 lower is better value |
| Buy | $430 · Details Brand store, Oct 28, 2026 | $219 · Details Brand store, Oct 28, 2026 |
Which solar panels work with each
Our checker at 20°F, using each maker's voltage and current rules. Tap a verdict for the wiring and cables.
Where to buy
Out of stock at the Anker SOLIX store when we checked
$219 at the EcoFlow store, checked Oct 28, 2026
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