Anker SOLIX C300 vs EcoFlow RIVER 3 Plus
Technical comparison · Ultraportable
Anker SOLIX C300 and EcoFlow RIVER 3 Plus are both ultraportables in the same tier, but with different output: 300 W against 600 W continuous. Whoever needs to run several appliances together finds the answer in the Plus, whoever wants the least noise finds it in the C300.
| Parameter | ||
|---|---|---|
| In brief | ||
| Nominal capacity | 0.288 kWh | 0.286 kWh |
| Continuous output | 300 W | 600 W |
| Peak output | 600 W | 1200 W |
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| Cost per kWh | 937.47 €/kWh | 1045.45 €/kWh |
| List price | 269.99 € | 299 € |
| Weight | 4.13 kg | 4.7 kg |
| Dimensions (W×D×H) | — | 23.4 × 23.2 × 14.6 cm |
| How long it lasts | ||
| Battery life cycles | 1825 cicli | 1825 cicli |
| The limit that runs out first | anni di garanzia | anni di garanzia |
| Rated cycles | 3000 cicli | 3000 cicli |
| Capacity at end of cycle life | 80 % | 80 % |
| Warranty | 5 anni | 5 anni |
| The numbers | ||
| Cost of stored energy | 0.514 €/kWh | 0.573 €/kWh |
| Energy density | 69.7 Wh/kg | 60.9 Wh/kg |
| Power-to-capacity ratio | 1.04 C | 2.1 C |
| Identity | ||
| Use tier | F1 — Outlet-sized (up to 1 kWh) | F1 — Outlet-sized (up to 1 kWh) |
| Price | ||
| Price | — | ~200–450 € |
| Category specs | ||
| Expandable | No | Yes |
| Maximum expanded capacity | — | 0.858 kWh |
| Fastest USB-C | 140 W | 100 W |
| Maximum charge power | 0.33 kW | 0.38 kW |
| 0–80% charge time | 50 min | — |
| Maximum solar input | 100 W | 220 W |
| Backup power | UPS | UPS |
| Switchover time | 10 ms | 10 ms |
| Mounting | Portable | Portable |
| Minimum temperature | -20 °C | — |
| Maximum temperature | 40 °C | — |
| Noise level | 25 dB | 30 dB |
The differences that matter
- Continuous output: 300 W vs 600 W → the RIVER 3 Plus runs several appliances together, the C300 only a light load.
- Maximum solar input: 100 W vs 220 W → the RIVER 3 Plus recharges faster from a panel.
- Noise level: 25 dB vs 30 dB (manufacturer-rated) → the C300 is the quieter of the two.
- Maximum charge power: 0.33 kW vs 0.38 kW → the RIVER 3 Plus recharges slightly faster from mains.
Which one to choose
Choose Anker SOLIX C300 if…
The C300 holds a continuous load up to 300 W and is the quieter of the two, manufacturer-rated at 25 dB against the RIVER 3 Plus's 30 dB. The trade-off is more limited solar input, up to 100 W.
Choose EcoFlow RIVER 3 Plus if…
The RIVER 3 Plus holds a continuous load up to 600 W, double the C300, and accepts solar input up to 220 W, more than double; it's also expandable, which the C300 isn't. The trade-off is weight, 4.7 kg against the C300's 4.13 kg.
Where to buy
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