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EF ECOFLOW Portable Power Station RIVER 2 Pro, vs OUPES Mega 1 Portable Power Station 2000W ,

Updated July 2026 — EF ECOFLOW Portable Power Station RIVER 2 Pro, wins on charge time, OUPES Mega 1 Portable Power Station 2000W , wins on surge and cycles.

The EF ECOFLOW RIVER 2 Pro is a lightweight, portable option ideal for casual use, while the OUPES Mega 1 offers more power and advanced features for serious users.

Why EF ECOFLOW Portable Power Station RIVER 2 Pro, is better

Price

RIVER 2 Pro is cheaper at $339.00

Portability

RIVER 2 Pro weighs only 17.2 lbs

Charging Time

RIVER 2 Pro charges in 70 minutes

Why OUPES Mega 1 Portable Power Station 2000W , is better

Power Output

OUPES Mega 1 delivers 2000W continuous output

Expandability

OUPES Mega 1 can expand to 5120Wh

Smart Features

OUPES Mega 1 has smart app control

Overall score

EF ECOFLOW Portable Power Station RIVER 2 Pro,
75
OUPES Mega 1 Portable Power Station 2000W ,
85

Specifications

SpecEF ECOFLOW Portable Power Station RIVER 2 Pro,OUPES Mega 1 Portable Power Station 2000W ,
Battery TypeLiFePO4LiFePO4
AC Outlets4Premium
USB PortsMultipleComprehensive
Solar Input220W800W
Warranty5 years2 years

Dimension comparison

EF ECOFLOW Portable Power Station RIVER 2 Pro,OUPES Mega 1 Portable Power Station 2000W ,

Overview of the Products

The EF ECOFLOW Portable Power Station RIVER 2 Pro is priced at $339.00, making it about 17% cheaper than the OUPES Mega 1 Portable Power Station, which retails at $459.00. Both products are designed for portable power, but they cater to different needs and usages. The RIVER 2 Pro is compact and lightweight, ideal for casual outdoor adventures, while the OUPES Mega 1 is a more robust option, suitable for extensive power needs and home backup.

Charging Speed

The RIVER 2 Pro boasts the fastest charging time in the industry, with the ability to fully recharge using an AC outlet in just 70 minutes. This rapid charging feature is particularly advantageous for those who need quick power availability during outdoor excursions. In contrast, the OUPES Mega 1 offers revolutionary fast-charging technology, reaching 0-80% capacity in just 36 minutes via AC, and an impressive 26 minutes when using both AC and solar inputs. This level of efficiency positions the OUPES Mega 1 as an excellent choice for users who prioritize minimal downtime.

Battery Technology

Both power stations utilize LiFePO4 battery technology, but their specifications differ significantly. The RIVER 2 Pro can handle over 3,000 charge cycles before hitting 80% capacity, which translates to nearly a decade of regular use. Meanwhile, the OUPES Mega 1 features advanced lithium iron phosphate cells with a lifecycle rating of over 3,500 cycles, ensuring long-lasting performance. For users concerned about battery longevity, the OUPES Mega 1 may offer a slight edge, thanks to its superior thermal stability and extended cycle life.

Power Output

The EF ECOFLOW RIVER 2 Pro can deliver a continuous output of up to 1600W and is capable of powering 80% of household appliances, making it a versatile option for various applications. It is equipped with 11 outlets, including AC and USB-C, allowing users to charge multiple devices simultaneously. On the other hand, the OUPES Mega 1 provides a continuous output of 2000W, with a surge capability of 4500W. This higher output makes it suitable for more power-hungry devices, such as power tools and sensitive electronics, without risk of voltage fluctuations.

Portability

Weighing only 17.2 lbs, the RIVER 2 Pro stands out as an exceptionally portable option, designed for outdoor camping and travel. Its lightweight design and built-in handle make it easy to carry, ideal for off-grid adventures. In contrast, the OUPES Mega 1 is designed with a more extensive power capacity and modular expansion, but its larger size and weight may make it less convenient for casual outdoor use. Therefore, for those prioritizing portability, the RIVER 2 Pro is the clear winner.

Expandability

The OUPES Mega 1 excels in expandability with the option to connect up to two B2 Extra Batteries, allowing users to scale their power capacity from 1024Wh to a significant 5120Wh. This modular capability is particularly beneficial for those planning to use the power station for longer durations or in settings where power requirements may increase. In contrast, the RIVER 2 Pro does not offer such expansion capabilities, which may limit its usefulness for users with growing power needs.

Smart Features

The OUPES Mega 1 includes a smart app control feature, enabling users to monitor and manage their power station remotely via Bluetooth. This functionality allows for real-time tracking of power consumption and customization of output settings, providing significant convenience for tech-savvy users. The RIVER 2 Pro does not highlight any smart management features in its specifications, making the OUPES Mega 1 a more attractive option for those who value advanced technology and connectivity.

Which should you buy?

Choosing between the EF ECOFLOW Portable Power Station RIVER 2 Pro and the OUPES Mega 1 Portable Power Station ultimately depends on your specific needs. If you are looking for a lightweight, portable power solution for casual outings at a lower price point of $339.00, the RIVER 2 Pro is an excellent choice. However, if you require a more powerful station with advanced features, expandability, and faster charging capabilities, the OUPES Mega 1 priced at $459.00 may be worth the investment. Both products cater to different aspects of portable power, so consider your usage patterns and priorities before making a decision.