EcoFlow RIVER 3 Plus vs Anker SOLIX C300
Two small power stations, number by number. We compare each brand's current model in this size; 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: about the same (286 Wh vs 288 Wh).
- More AC output: EcoFlow RIVER 3 Plus, 600 W vs 300 W.
- Higher surge: EcoFlow RIVER 3 Plus, 1,200 W vs 600 W.
- More solar input: EcoFlow RIVER 3 Plus, 220 W vs 100 W.
- Higher solar voltage limit: EcoFlow RIVER 3 Plus, 55 V vs 28 V.
- Lighter: Anker SOLIX C300, 9.1 lb vs 10.4 lb.
- Lower brand-store price: EcoFlow RIVER 3 Plus, $299 vs $430.
RIVER 3 Plus and C300 are the same size class: within 2 Wh of each other. C300 is the lightest at 9.1 lb. RIVER 3 Plus takes the most solar at 220 W, so it refills fastest. RIVER 3 Plus is the cheapest at $299, and it also leads on solar input.
How long they run common devices
| Device | EcoFlow RIVER 3 Plus | Anker SOLIX C300 |
|---|---|---|
| Fridge (60 W) | 4 hours | 4 hours |
| CPAP (40 W) | 6 hours | 6 hours |
| Starlink (50 W) | 5 hours | 5 hours |
| Laptop (60 W) | 4 hours | 4 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 |  EcoFlow |  Anker SOLIX |
|---|---|---|
Battery Wh, size | 286 Wh fridge about 4 hours | 288 Wh fridge about 4 hours |
AC output W, continuous | 600 W Fridge, CPAP, laptops, lights | 300 W CPAP, laptops, lights, phones |
Surge W, a second or two | 1,200 W motor start-ups | 600 W motor start-ups |
Solar input W, max | 220 W full in about 2 hours | 100 W full in about 4 hours |
Solar voltage range V, panels must fit | 11 to 55 V 2 panels in series fits | 11 to 28 V 1 panel, or 2 in parallel |
Solar inputs count | 1 input XT60i | 1 input XT60 |
Weight lb | 10.4 lb one hand | 9.1 lb one hand |
Wh per pound battery for the weight | 28 Wh/lb higher is denser | 32 Wh/lb higher is denser |
Price brand store | $299 1.05 $/Wh | $430 1.49 $/Wh |
Price per Wh what you pay for storage | $1.05 lower is better value | $1.49 lower is better value |
| Buy | $299 · Details Brand store, Oct 27, 2026 | $430 · Details Brand store, Oct 27, 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
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