EcoFlow RIVER 2 Portable Power Station vs OUPES Mega 2 Pro Portable Power Station

Head-to-head spec comparison to help you pick the right power station for your needs.

EcoFlow

$199

Buy on Amazon
vs

OUPES

$899

Buy on Amazon
Comparing compact stations? See our 300Wh vs 500Wh Power Stations guide for sizing rules and ranked picks.Read the guide →

Spec Winner

OUPES Mega 2 Pro Portable Power Station

Wins on 3 of 5 spec categories

Spec-by-Spec Comparison

SpecEcoFlow RIVER 2 Portable Power StationOUPES Mega 2 Pro Portable Power Station
Capacity256 Wh2048 Wh
AC output300 W2500 W
Surge600 W5400 W
BatteryLiFePO4LiFePO4
Cycle life3000 cycles3500 cycles
Solar input110 W1000 W
AC recharge1 hr1.5 hr
Weight7.7 lb58 lb
UPS/EPSPass-through/EPS; not medical UPSUPS/EPS; variant-specific
Ports6 outputsAC, USB-C, USB-A, DC/RV
ExpandableNoYes
Price$199$899
Rating8.1/108.1/10
Buy on AmazonBuy on Amazon

Pros & Cons

EcoFlow RIVER 2 Portable Power Station

Pros

  • 256Wh LiFePO4 pack is a credible entry point for phones, routers, lights, and short CPAP windows
  • About one-hour AC recharge makes it easier to top off between outage windows or campground moves
  • Light 7.7 lb body is easier to store and move than most mid-size stations

Cons

  • 300W AC output is not a fridge, kettle, microwave, or tool-starter class inverter
  • 110W solar input is modest, so solar recovery is slow compared with larger EcoFlow stations
  • The small battery leaves little reserve margin for humidified CPAP or overnight multi-device loads

OUPES Mega 2 Pro Portable Power Station

Pros

  • 2048Wh LiFePO4 capacity at aggressive value pricing
  • 2500W output and high surge spec compete with more expensive 2kWh stations
  • 1000W solar input gives it a serious spec sheet if the exact variant matches

Cons

  • Variant and weight details need careful final verification
  • Support and ecosystem confidence trail the largest brands
  • Better as a value challenger than the default critical-load recommendation

Our Verdicts

EcoFlow RIVER 2 Portable Power Station

Buy the RIVER 2 for a compact emergency drawer station, not appliance backup. It is best when the job is phones, router, laptop, lights, and cautious CPAP use with the exact machine verified first.

OUPES Mega 2 Pro Portable Power Station

Mega 2 Pro is the 2kWh value challenger. It can make the math work beautifully, but verify the exact Amazon variant and seller before making it the core of an outage plan.

EcoFlow RIVER 2 Portable Power Station

$199

Buy on Amazon

OUPES Mega 2 Pro Portable Power Station

$899

Buy on Amazon

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