OUPES Mega 2 Portable Power Station

SVT Score, Mid

Versus
5.2
SVT SCORESRead review

2,048 Wh LiFePO4 station at 48.5 lb with 2,100 W of rated solar input and room for four B2 batteries; Jasonoid drew 1,780 Wh of it on AC, 86.9 percent of rated.

$729

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SKU: MEGA-2 Category: Brand:

Usability

5.2 out of 10

It stores 2,048 Wh, the typical size for a large station, so it scores 5 on capacity; Jasonoid drew 1,780 Wh of it on AC, 86.9 percent of rated.

Better on capacityBLUETTI Elite 400Stores 3,840 Wh. $1,399Scores 10.0

Its inverter is rated 2,500 W continuous with a 5,400 W surge, so it scores 5 on power output; TheSolarLab saw it shut off at once under a 3,000 W load.

Better on power outputAnker SOLIX F3000Inverter is rated 3,600 W continuous. $1,399.99Scores 10.0

OUPES puts a full wall charge at about 2 hours or more at 1,600 W and solar input tops out at 2,100 W, so it scores 6 on recharging; TheSolarLab timed 2 hours 7 minutes.

OUPES rates the cells for 3,500 cycles to 80 percent capacity, so it scores 6 on battery life.

It switches to battery in under 20 ms and takes four B2 batteries to a rated 10,240 Wh, but OUPES sells no transfer switch or home panel for it, so it scores 6 on backup readiness.

OUPES publishes no safety certificate for it and no certifier directory lists it by model, so it scores 2 on verification.

Better on verificationJackery Explorer 2000 v2SGS lists it to UL 2743 by model. $999Scores 8.0

OUPES gives it 5 years and adds a sixth free when it is registered, so it scores 8 on warranty and support.

Warranty and returns

Every Exodus, Mega and Guardian station carries five years, with a sixth for registering, and oupes.com orders can be returned within 30 days.

$729.00 at oupes.com.

2,100 W of solar on paper, 800 W on common panels

The Mega 2 is OUPES's 2,048 Wh LiFePO4 station from its Mega line, a 48.5 lb box with four 120 V 20 A outlets, a TT-30R RV outlet and no wheels.

Verdict

It suits an RV owner or home-backup buyer with high-voltage solar panels who wants 2 kWh now and room for 10 kWh later, and who will not lean on a surge rating that failed under test.

Strengths

  • 1,780 Wh drawn on AC by Jasonoid86.9 percent of rated
  • Up to 2,100 W of solar at 12 to 148 V
  • Expands to a rated 10,240 Wh with four B2 batteries
  • UPS switchover measured at 17 ms by Jasonoid
  • TT-30R RV outlet and a 12 V 30 A Anderson output

Drawbacks

  • Shut off at once under a 3,000 W load in TheSolarLab's test, against a 5,400 W surge rating
  • A 15 A solar limit makes 2,100 W hard to reach with common panels
  • Full wall charge took 2 hours 7 minutes in TheSolarLab's test
  • Battery drains at idle even with the inverter offper TheSolarLab
  • OUPES lists the weight as both 48.5 lb and 45.8 lb
  • No OUPES transfer switch or home panel

Social score

7.2 out of 10
Reddit6.0 out of 10
Liked
  • Runs house circuits in pass-through behind a transfer switch, per one owner
Complaints
  • Draws about 400 W topping off after the gauge reads 100 percent, per one owner

One owner in r/Jackery bought the Mega 2 in 2026 to feed house circuits through a transfer switch in pass-through and reported that it works as expected, but found it keeps drawing about 400 W after the gauge reads 100 percent until it is truly full.

Google7.0 out of 10
Liked
  • 83 percent usable on a 2,330 W load, per one reviewer
  • 20 to 95 percent on AC in an hour, per one reviewer
  • App works well, per one reviewer
Complaints
  • Shut off instantly at 3,000 W despite a 5,400 W surge rating, per one reviewer
  • Hard to exceed about 800 W of solar on common panels, per one reviewer
  • Idle drain and no built-in light, per one reviewer

TheSolarLab, which earns commission through affiliate links and offers a discount code, ran it 44 minutes on a 2,330 W load (83 percent), charged it on AC in 2 hours 7 minutes, saw it shut off instantly at 3,000 W, could not get past about 800 W of solar on four 200 W panels, and noted idle drain and no built-in light. The Gadgeteer, which earns commission through links, charged it from 20 to 95 percent in an hour at 1,600 W and praised its capacity, charging speed and UPS (March 2024).

YouTube7.0 out of 10
Liked
  • 1,780 Wh drawn on AC, 86.9 percent of rated, per one channel
  • UPS cutover measured at 17 ms, per one channel
  • AC and solar pass-through charging, per one channel
Complaints
  • Fan noise above 55 dB, per one channel
  • Low-voltage cutoff with AC sagging to 107 V near empty, per one channel
  • 82.7 percent of rated through DC, per one channel

Jasonoid, which earns commission through affiliate links and offered a discount code, drew 1,780 Wh on AC, 86.9 percent of rated, and 82.7 percent through DC, measured a 17 ms UPS cutover with a workstation staying on, and faulted fan noise above 55 dB and slow solar ramp-up (March 2024, about 22,000 views). Byte My Bits, which offers a discount code and Amazon affiliate links, hit a low-voltage cutoff near empty as AC output sagged from 118 to 107 V (December 2023, about 11,000 views).

AmazonProduct-line8.0 out of 10

One Amazon review file covers OUPES's Mega 1, Mega 2 and Mega 2 Pro listings (B0DG8JQNS4, B0CNP614R2): 4.5 from 1,502 ratings, 80 percent five-star and 7 percent one-star, and Amazon's review summary describes the Mega 1's 1,400 W charging. Its review tags are led by reliability (219 mentions) and charging speed (196), with durability mixed (48).

User reviewsProduct-line8.0 out of 10

No US retailer lists the Mega 2 with a review: Walmart's Mega 2 listings are gone, and Home Depot's Mega 2 page is out of stock with one one-star review. This reads the Mega 1 and Mega 1 Lite file on Walmart (item 11344470227), sold by OUPES's own store, which shares the Mega series app and B2 expansion battery with the Mega 1: 4.3 from 136 ratings, 4.3 from 132 with Walmart's four incentivized reviews set aside. Owners praise the fast wall charge and overnight refrigerator runtime, against units that died after a full discharge and app dropouts.

Trustpilot

Trustpilot rates oupes.com 4.5 from 3,454 reviews, 78 percent five-star and 5 percent one-star, on a claimed profile that invites customers to review.

Track record

The BBB rates OUPES Inc B+ without accreditation, with six complaints in three years, and no CPSC recall names an OUPES product.

Not countedExcluded

Not counted in any pool: oupes.com's own review widget, OUPES's own YouTube channel, or its OUPES Official Club Facebook group.

Brand-level

4.5 on Trustpilot, A B+ from the BBB

Specs

  • Capacity2,000-2,999 Wh
  • AC Output2,000-2,999 W
  • Output Voltage120 V only
  • Battery ChemistryLiFePO4
  • Rated Cycles3,000-3,999 cycles
  • Safety ListingNone verifiable
  • Solar Input2,000-3,999 W
  • Backup Switchover11-20 ms
  • Warranty5 Years
  • Expandable To10-19.9 kWh
  • Weight48.5 lb

At a glance

  • 15 outputs including a TT-30R RV outlet
  • 12 V 30 A Anderson DC output
  • Wi-Fi and Bluetooth app control

OUPES is the brand of Shenzhen Jiexun Energy Storage Co., Ltd., registered in 2021, and OUPES Inc of Rialto, California, sells its stations in the US.

It sells direct from oupes.com, through its own OUPES store on Amazon US, and as a marketplace seller on Walmart.com and Lowe's.com.

The OUPES Mega 2 is a 2,048 Wh LiFePO4 station rated 2,500 W continuous and 5,400 W surge from four 120 V 20 A outlets and a TT-30R 30 A RV outlet, with two 100 W USB-C ports, four 18 W USB-A ports, two 12 V DC5521 ports, a 12 V car outlet and a 12 V 30 A Anderson output. It charges from the wall at 1,600 W or 800 W, which OUPES puts at about 2 hours or more to full, and it takes up to 2,100 W of solar at 12 to 148 V and 15 A, or 3,700 W of AC and solar together. OUPES rates the cells for 3,500 cycles to 80 percent capacity and states a UPS switchover under 20 ms, and up to four B2 batteries take it to a rated 10,240 Wh. It is 120 V only, and OUPES sells no transfer switch or home panel for it. It weighs 48.5 lb, measures 18.1 x 10.6 x 12.0 in and is rated IP21.

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