Product comparison · Portable Stations
OUPES Mega 2 Pro vs ALLPOWERS R2500 V2
The OUPES Mega 2 Pro scores 6.0 and ranks 43rd of 61 in Portable Stations; the ALLPOWERS R2500 V2 scores 5.1 and ranks 57th of 61 in Portable Stations. The Mega 2 Pro leads on capacity.
All 7 OUPES products 
OUPES Mega 2 Pro
$699 · 43rd of 61 in Portable Stations
Buy Now- Capacity — 5 against 3
6.0
5.1
Across everything we scored, OUPES Mega 2 Pro sits 0.88 ahead — led by capacity.
Verdict
Mega 2 Pro ahead · +0.88 (6.0 vs 5.1)Pick the OUPES Mega 2 Pro when
Capacity matters5vs3
Recharging matters8vs7
Backup readiness matters6vs5
Pick the ALLPOWERS R2500 V2 when
A criterion we do not score decides itthe R2500 V2 leads on none of the ones we do
Scored 10 October 2026 from published specs and owner reviews. We don't buy or test units. How we score
Most common complaints
From each product's own owner reviews and retailer ratings.
OUPES Mega 2 Pro
- Shut down with a B2 still at 27 percent, per one channel
- Temperature misread at 33 to 34 F, per one channel
- App firmware-update bugs, per one channel
ALLPOWERS R2500 V2
- Rubber door stops fell off after five openings, per one reviewer
- Firmware upgrade needs a code, per one reviewer
- Heavy to carry, per one reviewer
Where the OUPES Mega 2 Pro and ALLPOWERS R2500 V2 differ
Scores on a 0–10 scale. Each row is one criterion, biggest difference first.
Recharging
+1 OUPESBackup Readiness
+1 OUPESPower Output
tiedBattery Life
tiedVerification
tiedWarranty & Support
tiedValue
one side unscoredWhat OUPES Mega 2 Pro and ALLPOWERS R2500 V2 owners report
Independent sources, scored for each model. Mega 2 Pro on 5 of five, R2500 V2 on 4.
The OUPES Mega 2 Pro reading covers its product line; the ALLPOWERS R2500 V2 reading covers its product line.
What they say
OUPES Mega 2 Pro
- Owner posts on the Mega line in r/OUPES_info from mid-2026 report a Mega 1 that would not recharge after a full discharge (E022 low cell voltage), trouble charging a B2 from a Mega 3 and an app owners call weak, against praise for OUPES support replacing a bricked unit.
ALLPOWERS R2500 V2
- No owner thread outside ALLPOWERS-linked subreddits names the R2500 V2, so this reads the earlier 2,016 Wh R2500 sold under the same name.
- In r/overlanding an owner's R2500 charging from a car outlet cycled between 100 W and zero on a third-party cable (April 2026); in r/GoRVing an owner of an R1500 and an R2500 reported clicking under light AC load and app connection faults on the smaller unit (2024).
The OUPES Mega 2 Pro reading covers its product line.
What they say
OUPES Mega 2 Pro
- The Mega 2 Pro has had no written test of its own, so this reads the Mega 2's.
- TheSolarLab, which earns commission through affiliate links and offers a discount code, measured 83 percent on a 2,330 W load and a 2 hour 7 minute AC charge, saw it shut off instantly at 3,000 W and found 2,100 W of solar hard to reach.
- The Gadgeteer, which earns commission through links, praised its capacity, charging speed and UPS (March 2024).
ALLPOWERS R2500 V2
- NikkTech, which links to ALLPOWERS' stores with a referral tag and passes on an ALLPOWERS discount code, tested the 230 V model and found it quiet, with three app-set charging modes from a mute mode at about 650 to 700 W to a fast mode above 2,000 W, and gave it its Platinum Award; it faulted the weight, a firmware upgrade that needs a code, and rubber door stops that fell off after five openings (July 2026).
YouTube
tiedBoth readings are about these exact models.
What they say
OUPES Mega 2 Pro
- Herb-O-Matic, which earns commission through affiliate links and offers an OUPES discount code, tested a pre-release unit, started a window air conditioner with a 25 A inrush, and found the 0 to 80 percent AC charge met OUPES's one-hour claim (May 2026, about 35,000 views).
- The Old Jarhead, which offers an OUPES discount code, found the unit misread its temperature at 33 to 34 F, hit app firmware-update bugs, and shut down at its 10 percent limit while a B2 still held 27 percent; OUPES committed to a firmware fix before mass production (May 2026, about 6,500 views).
ALLPOWERS R2500 V2
- Every channel tested a 230 or 240 V model and is tied to ALLPOWERS.
- RobnDob, in a video marked as paid promotion on a unit ALLPOWERS sent and with its own discount code, found it the same size as the 2,016 Wh R2500 but about 2.5 kg lighter and charged it from AC and solar together (July 2026).
- Phil's Camping Reviews, marked as paid promotion with a 10 percent code, ran it on Australian sockets and compared it with the first version (May 2026, about 375 views).
- JEL Reviews, which links to a store in its description, found the fan audible but not loud and ran it with pass-through charging (May 2026).
Amazon
+4 OUPESThe OUPES Mega 2 Pro reading covers its product line; the ALLPOWERS R2500 V2 reading covers its product line.
What they say
OUPES Mega 2 Pro
- 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).
- The Mega 2 Pro's own listing (B0GXZKZ5ZM) holds 4 ratings and shows as unavailable.
ALLPOWERS R2500 V2
- The listing now titled R2500 V2 1,920 Wh (B09XTRKMR4), with no featured offer, carries the review file of the earlier R2500 back to 2022: 3.6 from 22 ratings, 52 percent five-star and 13 percent one-star.
- ALLPOWERS' current R2500 V2 listing (B0F313G9PV), sold at $799, has 2 ratings and a second V2 listing (B0GSGSYZJY) has 1, both under the ten-review floor.
Owner reviews
one side unscoredThe OUPES Mega 2 Pro reading covers its product line; no usable source for the ALLPOWERS R2500 V2.
What they say
OUPES Mega 2 Pro
- No US retailer lists the Mega 2 Pro.
- 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.
ALLPOWERS R2500 V2
No usable source.
OUPES Mega 2 Pro vs ALLPOWERS R2500 V2: pros and cons
What each one does well, and where it falls short.
OUPES Mega 2 Pro
Strengths
- Full wall charge in 76 minutes at 1,800 Wper OUPES
- Bidirectional Anderson port rated 1,000 W at 12 to 80 V
- Two 140 W USB-C ports
- Expands to a rated 10,240 Wh with four B2 batteries
- Met OUPES's 0 to 80 percent in an hour claim in Herb-O-Matic's test
Drawbacks
- OUPES states the cycle rating as both 4,000 and 3,500 to 80 percent
- Solar input capped at 1,000 Wagainst 2,100 W on the Mega 2
- Shut down with a B2 still at 27 percent before a firmware fix, per The Old Jarhead
- No DC5521 ports and two fewer USB-A ports than the Mega 2
- No OUPES transfer switch or home panel
- Pre-order shipping October 15
ALLPOWERS R2500 V2
Strengths
- 2,500 W continuous at 120 V from four outlets
- UPS switchover in 15 ms
- Full wall charge in about 1.5 hours from a plain AC cable
- 1,000 W of solar input at 12 to 150 V
- Rated for 3,500 cycles to 80 percent capacity
- About 10 lb lighter than ALLPOWERS' 2,016 Wh R2500 Plus
Drawbacks
- UPS mode carries no more than 1,500 W
- ALLPOWERS' US page states 1,920 Wh in the title and spec table and 2,016 Wh in the banner
- Surge stated as 4,000 W in the spec table and 5,000 W in the feature list and Amazon title
- The US page's manual link opens the 2023 manual for the 2,016 Wh R2500
- The US page names no expansion batteryand the US store lists no B1000
- The station alone is sold out: sold new only with a panel
- ALLPOWERS' Returns page states an 18-month warrantythe warranty policy gives 24 months, or 5 years when registered after an iallpowers.com order
- ALLPOWERS' Amazon listings call the warranty 6 years in one line and 5 in another
- 54.0 lb with no wheels
OUPES Mega 2 Pro vs ALLPOWERS R2500 V2: the numbers
Price, scores and rank, then only the specs that differ. Green marks the side with more.
- CapacityOUPES More2,000-2,999 WhALLPOWERS1,500-1,999 Wh
- Expandable toOUPES10-19.9 kWhALLPOWERSNot listed
- WeightOUPES48.8 lbALLPOWERS54.0 lb
Same on both
- 2,000-2,999 WAC output
- 120 V onlyOutput voltage
- LiFePO4Battery chemistry
- 3,000-3,999 cyclesRated cycles
- 1,000-1,999 WSolar input
- 11-20 msBackup switchover
- None verifiableSafety listings
- 5 YearsWarranty
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Not sold on either one?
The top-scored and the cheapest other pick from each brand.
More from OUPES 5 scored in Portable Stations
What’s different
- Capacity: 3,000-3,999 Wh, not 2,000-2,999 Wh
- AC output: 3,000-3,999 W, not 2,000-2,999 W
Pick it ifPower output matters10vs5
What’s different
- Capacity: 450-699 Wh, not 2,000-2,999 Wh
- AC output: Under 1,000 W, not 2,000-2,999 W
Pick it ifBattery life matters8vs6
More from ALLPOWERS 6 scored in Portable Stations
What’s different
- Capacity: 1,000-1,499 Wh, not 1,500-1,999 Wh
- Expandable to: Not expandable, not Not published
Pick it ifCapacity matters10vs3
What’s different
- Capacity: 1,000-1,499 Wh, not 1,500-1,999 Wh
- AC output: 1,500-1,999 W, not 2,000-2,999 W
Pick it ifPower output matters8vs5
OUPES Mega 2 Pro vs ALLPOWERS R2500 V2: common questions
Is the OUPES Mega 2 Pro better than the ALLPOWERS R2500 V2?
On our scores, the OUPES Mega 2 Pro is ahead, 6.0 against 5.1. The OUPES Mega 2 Pro leads on capacity (5 against 3), backup readiness (6 against 5) and recharging (8 against 7).
Which is cheaper, the OUPES Mega 2 Pro or the ALLPOWERS R2500 V2?
The OUPES Mega 2 Pro, at $699 against $799: $100 less.
Which holds more energy, the OUPES Mega 2 Pro or the ALLPOWERS R2500 V2?
The OUPES Mega 2 Pro: rated 2,000-2,999 Wh, against 1,500-1,999 Wh for the ALLPOWERS R2500 V2.
What do owners say about the OUPES Mega 2 Pro and the ALLPOWERS R2500 V2?
Across 4 independent sources scored for both, the OUPES Mega 2 Pro is ahead on Amazon; the ALLPOWERS R2500 V2 is ahead on Google; Reddit and YouTube are level.
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Scores calculated 10 October 2026 · Products excluded where fewer than two independent sources cover them · · How we score