
1–3 on shared published metrics
bougerv Flash300 vs EcoFlow RIVER 3 Plus
Flash300 leads on 1 of the 7 metrics both units publish; RIVER 3 Plus leads on 3; 8 are level or not directly comparable. Capacity is within 0%, so this is a like-for-like decision rather than a size mismatch.


Pick this if
bougerv Flash300
- Max solar input: 600 W vs 220 W
Buyers who are already in the BougeRV ecosystem and want matching power.
Pick this if
EcoFlow RIVER 3 Plus
- List price: $299 vs $400
- Cost per watt-hour: $1.05 vs $1.40
- Rated cycles: 3,000 cycles vs 700 cycles
Buyers who want one system to grow from camping into home backup.
Spec by spec
A green arrow marks the better figure on each row. Rows where only one unit publishes a number are shown without a winner rather than guessed.
| Metric | Flash300 | RIVER 3 Plus | What it means |
|---|---|---|---|
| Capacity | 286 Wh | 286 Wh | How much energy the unit stores. Sets how long everything else can run. |
| Continuous AC output | 600 W | 600 W | The largest load the inverter will run continuously, not counting surge. |
| Weight lower is better | — | 10.4 lb | The spec buyers most often regret ignoring. |
| List price lower is better | $400 | $299 | Vendor list price at the time of collection; street prices move. |
| Cost per watt-hour lower is better | $1.40 | $1.05 | Price divided by capacity. The fairest single value metric. |
| Watt-hours per pound | — | 27.5 Wh/lb | Capacity you get per pound carried. |
| Max solar input | 600 W | 220 W | Caps how large an array is useful, and therefore off-grid recharge speed. |
| AC recharge time lower is better | — | 60 min | Vendor-stated time to full from a wall outlet. |
| Rated cycles | 700 cycles | 3,000 cycles | Vendor claim for charge cycles before capacity degrades to 80%. |
| UPS switchover lower is better | — | 10 ms | How long the unit takes to switch to battery. Under 20 ms keeps a desktop alive. |
| Max expandable capacity | — | 858 Wh | How far the system can grow with add-on batteries. |
| Warranty | 60 months | 60 months | Stated warranty length from the vendor listing. |
How each one ranks overall
bougerv Flash300
- #102 of 104 for Best value (cost per watt-hour) ($1.40)
- #5 of 106 for Most inverter headroom (210 W/100Wh)
- #51 of 83 for Highest solar input (600 W)
- #94 of 96 for Longest service life (200 kWh)
- #77 of 103 for Most output per dollar (1.50 W/$)
- #88 of 106 for Best for home backup (47/100)
- #79 of 105 for Longest warranty (60 mo)
EcoFlow RIVER 3 Plus
- #95 of 104 for Best value (cost per watt-hour) ($1.05)
- #93 of 103 for Most portable (Wh per pound) (27.5 Wh/lb)
- #4 of 106 for Most inverter headroom (210 W/100Wh)
- #39 of 49 for Fastest AC recharge (286 W)
- #63 of 83 for Highest solar input (220 W)
- #34 of 36 for Most expandable (858 Wh)
- #80 of 96 for Longest service life (858 kWh)
- #65 of 103 for Most output per dollar (2.01 W/$)
- #30 of 106 for Best for home backup (68/100)
- #15 of 105 for Longest warranty (60 mo)
- #12 of 29 for Quietest under load (30 dB)
The brands behind them
BougeRV
The overlander building a vehicle system around a fridge
Best for: Buyers who are already in the BougeRV ecosystem and want matching power.
Not for: Buyers shopping purely for the best station at a given capacity.
Full BougeRV profile →EcoFlow
The tech-forward buyer who reads the spec sheet and wants room to grow
Best for: Buyers who want one system to grow from camping into home backup.
Not for: Buyers who want the lowest cost per watt-hour and will never use an app.
Full EcoFlow profile →Where these numbers come from. Every figure on this page is taken from bougerv’s own product listing and is stored with the vendor’s exact wording, reproduced below. We do not estimate missing specs — a field the vendor does not publish is shown as “—” and excluded from rankings. Source: www.bougerv.com/products/286wh-flashcharge-power-station.
Vendor wording for each figure (5)
capacityWh: “Capacity => 286Wh (12.9Ah)”acOutputW: “AC Output => 2 x 110V, 50Hz/60Hz, 600W”solarInputW: “Solar Input => 12-45V, 25A, 600W Max”cycleLife: “Cycle Life => 700+ Cycles to 80% Capacity”warrantyMonths: “Product Warranty => 5 Years”
Where these numbers come from. Every figure on this page is taken from EcoFlow’s own product listing and is stored with the vendor’s exact wording, reproduced below. We do not estimate missing specs — a field the vendor does not publish is shown as “—” and excluded from rankings. Source: us.ecoflow.com/products/ecoflow-river-3-plus-portable-power-station-flash-sale.
Vendor wording for each figure (9)
capacityWh: “Capacity => 286Wh”acOutputW: “AC Output => 3 outlets, 600W total”weight: “Net Weight => 10.4 lb”solarInputW: “Solar Input => 220W”rechargeAcMinutes: “RIVER 3 Plus fast-charges in 1 hour with X-Stream”cycleLife: “3000 cycles to 80% capacity”upsSwitchoverMs: “provides premium protection with a <10 ms switchover”maxExpandableWh: “Expandable up to 858Wh with a wire-free connection”warrantyMonths: “<td>RIVER 3 Plus</td> <td>5 years</td>”
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