EcoFlow RIVER 3 Plus: what it runs and for how long
The EcoFlow RIVER 3 Plus is a 286 Wh LiFePO4 portable power station with a 600 W inverter (1,200 W surge). It is the highest solar input in the under-500 Wh class (220 W), and the highest surge rating in the under-500 Wh class (1,200 W). It meets our requirements for camping, UPS use with computers and routers and a LiFePO4 station under $500.
What can the EcoFlow RIVER 3 Plus run, and for how long?
Combine loads in the EcoFlow RIVER 3 Plus runtime calculatorOn a full charge it runs a 12V compressor fridge for about 23 h and a CPAP machine for about 4.3 h.
What can’t the EcoFlow RIVER 3 Plus run?
The EcoFlow RIVER 3 Plus can't run a refrigerator or a chest freezer (start-up ~2,200 W, limit 1,200 W); a microwave or a well pump (needs 1,000 W, inverter is 600 W); a space heater or an electric kettle (needs 1,500 W, inverter is 600 W).
Who is the EcoFlow RIVER 3 Plus a good fit for?
The EcoFlow RIVER 3 Plus meets every requirement for 3 of the 12 uses we filter for.
- ✓Camping
- ✓UPS use with computers and routers
- ✓A LiFePO4 station under $500
- ✕Carrying a CPAP on trips (light enough to pack) · needs capacity ≥ 500 Wh; the EcoFlow RIVER 3 Plus has 286 Wh
- ✕Fast solar charging · needs solar input ≥ 800 W; the EcoFlow RIVER 3 Plus has 220 W
- ✕Balcony solar and apartments · needs solar input ≥ 400 W; the EcoFlow RIVER 3 Plus has 220 W
Can you add batteries to the EcoFlow RIVER 3 Plus?
Yes. EcoFlow lists the EcoFlow RIVER 3 Plus as expandable with extra batteries, up to 858 Wh in total, so you can grow it for longer outages instead of replacing it.
Can the EcoFlow RIVER 3 Plus work as a UPS?
EcoFlow lists a switchover time of 10 ms for the EcoFlow RIVER 3 Plus, inside the 20 ms gap that the ITI (CBEMA) reference says typical computer equipment should ride through.
How fast does the EcoFlow RIVER 3 Plus recharge?
From a wall outlet it recharges in about 60 minutes in its fastest mode, per EcoFlow. From solar it needs about 1.7 hours of strong sun at its 220 W solar limit, with panels delivering 75% of their rating.
What are the EcoFlow RIVER 3 Plus's full specifications?
These figures come from EcoFlow's official US page, checked 2026-10-12. "Not published" marks specs EcoFlow doesn't publish.
| Capacity | 286 Wh |
|---|---|
| Battery chemistry | LiFePO4 |
| Rated cycles | 3,000 Cycle life is rated to 80% capacity. |
| AC output (continuous) | 600 W |
| AC surge | 1,200 W |
| AC outlets | 3 |
| Max USB-C output | 100 W |
| Max solar input | 220 W |
| Max AC charging input | 380 W |
| AC charge time (fastest mode) | 60 min |
| Expandable | Yes |
| Max with extra batteries | 858 Wh 858 Wh needs an EB300 (286 Wh) or EB600 (572 Wh) Extra Battery; 'RIVER 3 Max' is a bundle. |
| UPS switchover | 10 ms |
| Weight | 10.4 lb |
| Dimensions | 9.2 × 9.1 × 5.8 in |
| List price | $299 |
How does the EcoFlow RIVER 3 Plus rank against other Under 500 Wh power stations?
Among the 9 current under 500 Wh models, the EcoFlow RIVER 3 Plus is in the top third for AC output, surge, solar input and UPS switchover and in the bottom third for weight and Wh per list dollar.
| Spec | EcoFlow RIVER 3 Plus | Rank in band | vs band median | vs band leader |
|---|---|---|---|---|
| Capacity | 286 Wh | 6th of 9 | -1% | -43% vs Goal Zero Yeti 500 |
| AC output | 600 W | 1st of 9 | +100% | leads the band |
| Surge | 1,200 W | 1st of 8 | +100% | leads the band |
| Solar input | 220 W | 1st of 8 | +42% | leads the band |
| AC charging | 380 W | 4th of 9 | level | -31% vs Jackery Explorer 240 v2 |
| Rated cycles | 3,000 | 4th of 9 | level | -25% vs Jackery Explorer 240 v2 |
| Weight | 10.4 lb | 7th of 9 | +14% | +160% vs BLUETTI Elite 10 Mini |
| UPS switchover | 10 ms | 1st of 6 | level | leads the band |
| Wh per list $ | 0.96 | 7th of 9 | -6% | -18% vs EcoFlow RIVER 2 |
Who should not buy the EcoFlow RIVER 3 Plus?
Skip the EcoFlow RIVER 3 Plus if any of these describe you; each comes from its published specs.
- You carry it often. At 10.4 lb, it is heavier than 6 of the 9 under 500 Wh models that publish a weight. The Jackery Explorer 300 holds 294 Wh at 7.1 lb.
- You want to run a kettle, microwave or space heater. Its 600 W inverter is below the 1,000 W or more our cited figures give for each of them. The BLUETTI Pioneer Na delivers 1,500 W.
How long does the EcoFlow RIVER 3 Plus last at different loads?
About 243 Wh reaches the AC outlets, so a steady 100 W load runs for about 2.4 h and a load at its full 600 W rating for about 24 minutes.
| Steady AC load | Runtime from full |
|---|---|
| 25 W | 9.7 h |
| 50 W | 4.9 h |
| 100 W | 2.4 h |
| 200 W | 1.2 h |
| 300 W | 49 min |
| 500 W | 29 min |
| 600 W | 24 min |
What does the EcoFlow RIVER 3 Plus cost per kWh over its rated life?
About $0.35 per kWh of storage at list price, if you use all 3,000 rated cycles. The median for under 500 Wh models is $0.31 per kWh, so the EcoFlow RIVER 3 Plus is more expensive over its rated life.
Rated life energy = 286 Wh × 3,000 cycles ≈ 858 kWh. List price $299 ÷ 858 kWh ≈ $0.35.
How many hours of sun does the EcoFlow RIVER 3 Plus need to refill?
With panels delivering 75% of their rating (our calculator's default), the EcoFlow RIVER 3 Plus needs the hours of strong sun below. Its 220 W solar limit caps the charge rate, so panels beyond about 293 W add nothing in strong sun.
| Panels | Charge rate | Sun hours to refill |
|---|---|---|
| 100 W of panels | 75 W | 3.8 h |
| 200 W of panels | 150 W | 1.9 h |
| 400 W of panels | 220 W | 1.3 h |
| 800 W of panels | 220 W | 1.3 h |
What can the EcoFlow RIVER 3 Plus run at the same time?
The EcoFlow RIVER 3 Plus can carry 2 of the 10 common pairs we check at once, with the runtimes below. It can't carry refrigerator + wi-Fi router / modem, refrigerator + chest freezer, refrigerator + microwave oven, refrigerator + electric kettle, window air conditioner + refrigerator, sump pump + refrigerator, space heater + wi-Fi router / modem and microwave oven + electric kettle: together they pass its running or start-up limit.
| Together | Runtime from full |
|---|---|
| CPAP with heated humidifier + wi-Fi router / modem | 3.2 h |
| TV + wi-Fi router / modem | 1.7 h |
Which EcoFlow RIVER 3 Plus specs are unpublished or conditional?
EcoFlow publishes every spec we track for the EcoFlow RIVER 3 Plus.
2 published figures come with conditions, shown under the spec table: expanded capacity and rated cycles.
How does the EcoFlow RIVER 3 Plus compare with similar power stations?
By capacity, the nearest models from other brands are Anker SOLIX C300, BLUETTI Elite 30 V2 and Jackery Explorer 300.
Which models from other brands are closest in size?
Anker SOLIX C300
BLUETTI Elite 30 V2
Jackery Explorer 300Which other EcoFlow models are similar?
How this page was made. Specs come from each manufacturer's official US spec page or manual, checked on the date shown; specs a manufacturer doesn't publish are marked "Not published". Runtimes are calculated (capacity × 85% inverter efficiency ÷ appliance draw), not measured. We haven't hands-on tested these units. Method and sources · Affiliate disclosure