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OUPES · Power station · Mega 2 Pro

Mega 2 Pro

Mega 2 Pro combines 2,048Wh of stored energy with 2,500W rated AC output and up to 3,600W peak or surge capability. <20 ms, 2,500W UPS/EPS.

2,500W rated2,048WhRechargeable LiFePO4 batteryListed available
Check OUPES price Official sale price $699.00
OUPES Mega 2 Pro Home Backup & Portable Power Station | 2500W, 2048Wh
Product image · OUPES

Product decision summary

Researched by · reviewed under the FMG editorial standard · Sep 15, 2026

Trace the evidence · not a hands-on review

Bottom line

Excellent in its class for home essentials & rv and camping.

Best for: Home essentials & RV and camping

Running output

2,500W

Fuel / power

Rechargeable LiFePO4 battery

Weight

48.8 lb

Strongest reasons

  • Mega 2 Pro combines 2,048Wh of stored energy with 2,500W rated AC output and up to 3,600W peak or surge capability. <20 ms, 2,500W UPS/EPS.
  • Running output is higher than 99% of its class.
  • Stored energy is higher than 88% of its class.

Know before buying

Its compact output is best for prioritized essentials, not several large home loads running at once.

Best current buying route

$699

Sale price at OUPES

The only verified seller destination. Its listed price is known, but shipping and delivered cost still need confirmation. Confirm price, stock, shipping, and the exact model on the seller’s site.

Check price & availability

Affiliate links may earn us a commission at no added cost to you. Disclosure

Follow the manual’s charging, temperature, storage, and battery-safety requirements.

Price intelligence Evidence ledger Accessories & manuals

Key specifications

The numbers that drive the decision.

Published values stay labeled, and every usable metric includes class context. Missing data is shown instead of estimated.

Open complete specifications
SpecificationThis model
Running output2,500WHigher than 99% of its class
Peak / starting output3,600WHigher than 75% of its class
Stored energy2,048WhHigher than 88% of its class
Product weight48.8 lbLighter than 8% of its class
Published sound levelNot publishedNo class comparison available
Fuel / power sourceRechargeable LiFePO4 batteryPower station
Best current price$699Sale price at OUPES

Class comparisons use 101 compact power stations. Runtime figures can use different loads, fuels, or test conditions; confirm the model manual before planning fuel or battery duration.

Product gallery & complete specifications Official imagery, full spec tables, use cases, and source linksView details

Infographic gallery

Output, stored energy, charging, and portability.

01 · Usable output

2,500W rated output

Battery2,500W / 3,600W

The comparison uses OUPES’s published rated and peak, surge, or maximum output figures.

02 · Energy & runtime

Listed capacity

2,048Wh

Published runtime guidance

Runtime depends on stored capacity, conversion efficiency and connected load

03 · Size & construction

48.8 lb / 22.1 kg

Listed weight

18.8 × 11.6 × 11.6 in

Dimensions

Battery or engine
LiFePO4 (LFP) battery system
Warranty
5 years; free 1-year extension after registration
04 · Charging & continuity

Charging or integration

1,800W fast AC; 1,000W solar; 2,800W combined AC + solar

Backup transfer

<20 ms, 2,500W UPS/EPS

Noise

Quiet battery operation; fan noise varies by load

Official product gallery

Product views and factory feature graphics.

The current official image set for Mega 2 Pro includes product views, connection diagrams, feature explanations, and compatible system configurations where OUPES publishes them.

Mega 2 Pro official OUPES image 1
Published by OUPES · image 1 of 5
Mega 2 Pro official OUPES image 2
Published by OUPES · image 2 of 5
Mega 2 Pro official OUPES image 3
Published by OUPES · image 3 of 5
Mega 2 Pro official OUPES image 4
Published by OUPES · image 4 of 5
Mega 2 Pro official OUPES image 5
Published by OUPES · image 5 of 5

Complete specifications

The complete factory data available for comparison.

These pages retain OUPES's model-specific output, charging, battery, port, continuity, dimensions, environmental, engine, fuel, app-control, and warranty fields where published.

Follow charging, storage, and installation guidance. Whole-home connections and transfer equipment should be installed according to OUPES instructions and applicable electrical codes.

Comparison summary

AC output
2,500W rated / up to 3,600W peak or surge
Stored energy
2,048Wh
Battery chemistry
LiFePO4 (LFP)
Dimensions
18.8 × 11.6 × 11.6 in
Listed weight
48.8 lb / 22.1 kg
Price and availability
$699.00 sale price; previously $1,599.00; available from OUPES

Factory output & connection specifications

Battery capacity
2,048Wh
Rated AC output
2,500W
Peak / surge output
3,600W
UPS / backup transfer
<20 ms, 2,500W UPS/EPS
Basic Capacity
2048Wh.
Expansion Capacity
Up to 10.24kWh with 4 B2.
AC Output Power
2,500W (3,600W Boost).
AC Outlets
4*NEMA 5-20R (120V/20A). 1*TT-30R (120V/30A).
USB-A Output
2*USB-A (18W Max).
USB-C Output
2*USB-C (PD 140W per port).
12V DC Output
2*Car Lighter (12V/10A). . INPUT .
AC Charging
1,800W.
AC Charging
900W.
USB-A Output
4*USB-A (18W Max).
USB-C Output
2*USB-C (PD 100W per port).
12V DC Output
2*DC 5521. 1*Anderson (12V/30A). 1*Car Lighter (12V/10A). . INPUT .
AC Charging
rechargable when connected with main unit.
The Most Powerful 1,000W DC Power
Ditch bulky adapters. Directly run RV DC appliances, 3D printers, or high-draw DC appliances with 12-80V/30A Max Anderson bidirectional port.
Future-Ready Power with OTA
Fix bugs remotely and boost efficiency without lifting a finger; your Mega 2 Pro evolves through the latest firmware.

Factory charging & battery specifications

Battery chemistry
LiFePO4 (LFP)
Cycle life
4,000+ cycles to 80%
Charging
1,800W fast AC; 1,000W solar; 2,800W combined AC + solar
Cycles
> 4000+ cycles to 80%.
Solar Charging
1,000W Max, 12-80V DC. MPPT: 18-80V, 30A Max.
Solar Charging
2,800W Max. . . GENERAL .
Pass-through Charging
Yes.
Cycles
> 3500 cycles to 80%.
Solar Charging
2100W max, mppt:18V-140V, 15A max. . GENERAL .
Five Fast Recharging Way
100% recharge in just 52 minutes via AC+Solar, recharge in 2 hours under the sun or recharging in 2.75 hours with 800W Alternator charger.

Factory dimensions & operating specifications

Listed weight
48.8 lb / 22.1 kg
Dimensions
18.8 × 11.6 × 11.6 in
Net Weight
48.8lbs (22.1kg).
Dimensions (L x W x D)
18.8*11.6*11.6in (468*294*296mm).
Operating Temperature
0℃~40℃ (32℉~104℉).
Storage Temperature
20℃~60℃ (-4℉~140℉).
IP Grade
IP21. . BATTERY .
Net Weight
41.8lbs (18.9kg).
Dimensions (L x W x D)
18.1*10.6*10.0in (460*270*255mm).
Operating Temperature
0℃~40℃ (30℉~104℉).
Storage Temperature
0℃~40℃ (30℉~104℉).
Operating Temperature
4℉ - 185℉ (-20°C - 85°C). Best
Working Temperature
77℉ (25℃).
IP Grade
IP65.

Factory ownership, control & protection specifications

Warranty
5 years; free 1-year extension available after registration
UPS/EPS
< 20ms, 2500W.
Connectivity
WiFi 2.4GHz/Bluetooth.
App Control
Yes.
Certification
UN38.3; MSDS.
Warranty
Up to 6 Years. (Basic 5 years warranty. . Register for 1 Extra Year Free!).
Warranty
Up to 6 Years. (Basic 5 years warranty. Register for 1 Extra Year Free!). . POWER . Maximum Power 240W. Cell Lamination ETFE (Ethylene tetrafluoroethylene). Cell
Warranty
12 Months. . Download Manual > Download Manual > Download Manual > .
Run 99% Appliances with 3600W Boost
Handle everything from fridge to microwave with a 2,500W base and 3,600W Boost Mode output.
Reliable 20ms UPS & 2500W Pass-through
Simultaneously charge and power your gear without interruption, backed by a 20ms UPS for lightning-fast backup.
Smart APP Control
Take full control with remote monitoring and smart scheduling; manage your energy flow from anywhere.

Additional factory specifications

Type
LFP (LiFePO4).
BMS
Yes. . OUTPUT .
Type
Pure Sine Wave.
Type
Monocrystalline Silicon. Cell Efficiency ≥ 23%. Open Circuit Voltage (OCV) 24.6V (Vmp 20.5V). Short Circuit Current (Isc) 12.3A (Imp 11.7A). . GENERAL . Connector Standard MC4 Connector. Weight 18.48lb (8.4kg). Cable Length 196.8 inches. Dimensions (Unfolded) 99.5 x 23.2 x 1.4in (2529 x 590 x 35mm). Dimension (Folded) 26.1 x 23.2 x 2.4 (665 x 590 x 60mm).
Expandable Up to 10.24kWh
Expand your power in the future when you need more power

Official product questions & technical answers

I noticed the solar input power of Mega 2 pro is 1,000W, down from 2,100W on the old Mega 2. Could you explain why that change was made?
Sure thing! The main reason we adjusted the power is that we’re moving away from those theoretical parameters that look good on paper but are hard to actually achieve. Instead, we want to give you a power level that’s reliable and consistent in real use. Let me break it down for you:. 1. The Mega 2: That 2,100W is technically the maximum theoretical solar input, but you’ll rarely hit that in real life. Its solar input specs are DC: 12-148V, 15A Max, 2100W Max. If you use our 240W solar panels (specs: OCV 24.6V, Vmp 20.5V, Imp 11.7A), you can connect up to 5 in series. That gives you a theoretical input of 1200W, and after accounting for line transmission and energy conversion losses, the actual input is around 1,000W. 2. The Mega 2 pro: While 1,000W seems lower, it’s the actual power you can consistently get. Its solar input specs are DC: 12-80V, 30A Max, 1,000W Max. Thanks to the larger input current, you can connect the solar panels in a 3-series and 2-parallel setup. That gives a theoretical maximum input of 1440W, and after losses, the actual power stays steady around 1,000W. Also, from what we found in market research, 1,000W is the sweet spot for 2kWh-class energy storage power supplies. It lets you fully charge in about 2 hours, keeps the equipment running stably, and even extends its service life. . For higher solar input, you can add a B2 Extra Battery to unlock an independent 2,100W solar input.
Can I leave the Mega 2 Pro connected to the solar panels overnight?
Yes, it is safe to leave the Mega 2 Pro connected to your solar panels overnight. We've optimized the Mega 2 Pro's internal circuit design to enable 24/7 automatic charging management, so the MPPT controller will stop charging when there's no sunlight and automatically resume when the sun returns. This will not cause any damage to the unit or your panels.
Does the Mega 2 Pro support pass-through charging?
Yes. The Mega 2 Pro supports pass-through charging. However, in bypass mode, AC charging input plus all outputs should not exceed 2400W.
Can I connect the Mega 2 Pro to a G5 Extra Battery?
No. The Mega 2 Pro is part of Mega Series and is exclusively compatible with B2 Extra Batteries (2,048Wh per unit).
I just received my unit—what are the first steps?
To ensure peak performance and a seamless experience, we recommend the following:. Read the Manual: Familiarize yourself with the safety guidelines and features. - Watch & Learn: Visit our official YouTube channel for video tutorials. Join the Community: Connect with fellow owners and swap tips in our Facebook User Group. Condition the Battery: For the best long-term health, please complete one full charge and discharge cycle before your first regular use.
Can I Use Third-Party Solar Panels?
Yes, third-party panels are compatible. Ensure the Open Circuit Voltage is 80V , current is 30A , and the total wattage matches the unit's MPPT specifications for safe operation.

Official feature details

System capability

Mega 2 Pro combines 2,048Wh of stored energy with 2,500W rated AC output and up to 3,600W peak or surge capability. <20 ms, 2,500W UPS/EPS.

Power and expansion

The Most Powerful 1,000W DC Power : Ditch bulky adapters.

Charging flexibility

Directly run RV DC appliances, 3D printers, or high-draw DC appliances with 12-80V/30A Max Anderson bidirectional port.

Battery and durability

Expandable Up to 10.24kWh : Expand your power in the future when you need more power.

Controls and continuity

Run 99% Appliances with 3600W Boost : Handle everything from fridge to microwave with a 2,500W base and 3,600W Boost Mode output.

Portability detail

Five Fast Recharging Way : 100% recharge in just 52 minutes via AC+Solar, recharge in 2 hours under the sun or recharging in 2.75 hours with 800W Alternator charger.

Compatibility note

Reliable 20ms UPS & 2500W Pass-through : Simultaneously charge and power your gear without interruption, backed by a 20ms UPS for lightning-fast backup.

Additional manufacturer note

Future-Ready Power with OTA : Fix bugs remotely and boost efficiency without lifting a finger; your Mega 2 Pro evolves through the latest firmware.

Best-fit uses

  • Home essentials
  • RV and camping
  • Mobile work and appliances
  • Short outages

Standout features

  • 2,500W rated output
  • Up to 3,600W peak or surge
  • 2,048Wh listed capacity
  • LiFePO4 (LFP)

Match capacity and output to your actual loads.

Use the independent calculator before choosing a battery system or generator.

Check my power plan
Sources: OUPES Mega 2 ProOUPES productsOfficial manualVerified September 15, 2026

Price & Availability

Compare the whole buying route.

The lowest sticker price is not always the best offer. We rank exact-model seller pages using price, stock, shipping, freshness, returns, and warranty details—then show what is still unknown.

Price and delivered cost

Shipping is included only when the seller publishes a usable amount.

Stock and freshness

Current, low-stock, preorder, and stale records are scored differently.

Purchase protections

Published return and warranty terms improve evidence confidence.

Affiliate-neutral ranking

Commission status is recorded but never adds ranking points.

Watch this model

Save it to your shortlist to retain the current price snapshot and turn price and safety watches on or off.

Best current buying route

OUPES Mega 2 Pro

Review soon

Sale price

$699

at OUPES · Verify stock

Verify offer

Seller options

1

1 with price

Offer rank

57/100

Relative to listed sellers

Data confidence

55%

4 open fields

Delivered totals

0/1

Shipping included

The only verified seller destination. Its listed price is known, but shipping and delivered cost still need confirmation.

Seller data checked Sep 15, 2026.

Shipping not yet verified.

Open fields: confirmed stock, delivered cost, return window, warranty term.

Prices, local stock, shipping, taxes, installation, and seller terms can change. Confirm the exact model and final checkout total before buying. Affiliate disclosure.

Seller comparison

Every verified exact-model destination.

Browse all priced models

One exact-model seller destination is currently verified. We show the unknown fields so a single listing is never presented as a broad market comparison.

OUPES

Best overallLowest listed
Review soon

$699

Final total at checkout

Availability
Verify stock
Shipping
Shipping not yet verified
Returns
Not verified
Warranty
Not verified
Verify seller

55% data confidence · checked Sep 15, 2026

Price history

A durable record, starting with verified snapshots.

We preserve each dated seller observation instead of replacing the old number. Trends use the lowest verified listed price on each observation date—not an estimated market price.

OUPES

$699 · Verify stock

Verify offer

Ownership

What living with it looks like.

Ownership is mostly about charge readiness, cable compatibility, storage conditions, and preserving battery health.

Ownership rule

Use the exact OUPES Mega 2 Pro manual for maintenance intervals, fluids, storage limits, and warranty requirements. Similar models are not interchangeable.

Open owner’s manual Manufacturer support

Published warranty

5 years; free 1-year extension after registration

Coverage can vary by use, seller, and region. Confirm eligibility and exclusions before purchase.

Service information

2 official resources

An owner or operator manual is linked below for exact service intervals.

Battery care

Low mechanical upkeep

Plan for charge-state, cable, ventilation, firmware, and storage-temperature checks.

Handling & storage

48.8 lb · Rechargeable LiFePO4 battery

Store dry and within the manufacturer’s published temperature and charge-state limits.

Practical care plan

From delivery to long-term readiness

  1. 1

    Day one

    Register and record the exact unit

    Save the receipt, serial number, seller, warranty terms, and all included cables before packaging is discarded.

  2. 2

    First setup

    Confirm charging limits and update status

    Use the official manual to verify every AC, vehicle, and solar input limit. Install firmware updates only through the manufacturer’s supported process.

  3. 3

    Before a trip or outage

    Run a readiness check

    Inspect ports and cables, confirm state of charge, test the intended loads, and make sure the recharge plan still matches the forecasted need.

  4. 4

    During storage

    Protect long-term battery health

    Follow the model manual for storage temperature, ventilation, recharge cadence, and recommended state of charge. Do not use generic battery advice in place of its limits.

Before you buy

Five ownership questions to settle first

  • Confirm that 5 years; free 1-year extension after registration applies to your seller, region, and intended use.
  • Open the official manual for Mega 2 Pro and review setup, service intervals, warnings, and storage requirements.
  • Verify access to OUPES parts, authorized service, and a practical return path in your area.
  • Confirm every charging cable, solar input limit, expansion-battery match, and indoor-use restriction.
  • Confirm the unit, fuel or charging gear, and essential cords fit the intended storage and transport space.
Manuals and compatible accessories Compare seller protections

Evidence

See the proof behind the conclusion.

We separate sourced facts, reproducible calculations, editorial judgments, and missing evidence. That makes every important claim easier to inspect—and harder to overstate.

Published-data coverage

100%documented

8 of 8 relevant evidence fields are documented for this model.

Source-backed editorial analysis—not a hands-on or laboratory test.

Read our evidence standard Explore original market research

Source record

3 traceable sources

Last reviewed Sep 15, 2026

Hands-on testing

Checking ledger…

No manufacturer data is presented as an independent test

Verified owners

Checking reports…

Percentages stay hidden until the sample qualifies

CPSC screening

No model-text match

39 generator recall records screened

100%

Documented fields

3

Traceable sources

4

Reproducible calculations

0

Open evidence gaps

Original calculation

Published surge reserve

1,100W

3,600W peak − 2,500W running

44% above rated running output. This is arithmetic headroom, not a promise that every motor load will start.

Original calculation

Rated power density

51.23 running W/lb

2,500W ÷ 48.8 lb

A catalog-derived portability ratio. It does not account for handles, wheels, shape, or how the weight feels in use.

Original calculation

Listed dollars per Wh

$0.34/Wh

$699 ÷ 2,048Wh

A point-in-time catalog value ratio. It excludes tax, shipping, accessories, fuel, service, and battery expansion costs.

Original calculation

Strongest class-relative spec

99th percentile

Running output: 2,500W ranked within 101 compact power stations

Higher than 99% of its class

Claim-by-claim evidence ledger

Evidence typeClaimBasisTrace
Published factSource-backed2,500W running and 3,600W peak output are recorded for this model.Model-specific output fields in the catalog.Official model source
Published factSource-backed2,048Wh of published storage capacity is recorded.Model-specific battery capacity in the catalog.Official model source
Published factSource-backedRechargeable LiFePO4 battery power and 48.8 lb product weight are recorded.Published configuration and dimensional data.Official model source
Original calculationReproduciblePublished surge reserve: 1,100W.3,600W peak − 2,500W runningCalculation standard
Original calculationReproducibleRated power density: 51.23 running W/lb.2,500W ÷ 48.8 lbCalculation standard
Original calculationReproducibleListed dollars per Wh: $0.34/Wh.$699 ÷ 2,048WhCalculation standard
Editorial judgmentEditorialExcellent in its class for home essentials & rv and camping.Class score 75/100, declared best use, comparative specifications, and explicit buying cautions.Inspect the score
Editorial judgmentEditorialIts compact output is best for prioritized essentials, not several large home loads running at once.Editorial risk check based on product category, weight, output, price availability, and missing fields.Judgment standard

What this evidence cannot prove

  • No Find My Generator hands-on test, instrumented load test, teardown, or long-term ownership trial is claimed for this page.
  • Manufacturer specifications may use different fuels, loads, test distances, temperatures, or operating modes. Cross-brand comparisons inherit those differences.
  • The listed price is a dated snapshot and may not equal the current delivered price.

Editorial analysis for OUPES Mega 2 Pro. Source record last verified Sep 15, 2026. Corrections can be submitted through the contact page with a model-specific source.

Ownership resources

Accessories, manuals, and documents.

Start with the exact OUPES Mega 2 Pro model or item number. Accessory families can look alike while using different connectors, electrical limits, engines, or mounting points.

Compatible accessories

Match by model and connection.

Verify exact fit

Solar charging equipment

Shop OUPES solar panels, charging leads, and adapters intended for its portable-power ecosystem.

Match the connector, solar input voltage, current limit, and maximum input published for Mega 2 Pro.
View official accessory options
Verify exact fit

Expansion battery

Review OUPES expansion batteries and required connection cables.

Use only an expansion battery that OUPES explicitly lists for Mega 2 Pro; similar-looking ports do not establish compatibility.
View official accessory options
Verify exact fit

Case, cart, or protective cover

Protective and mobility accessories can make storage and transport easier.

Check the listed dimensions and model fit for Mega 2 Pro; do not block cooling inlets or exhaust fans during operation.
View official accessory options

Manuals & PDFs

Official product materials.

Owner’s or operator’s manualPDFOperating, safety, maintenance, and troubleshooting instructions for Mega 2 Pro.Official product pageProduct pageCurrent manufacturer overview, notices, specifications, downloads, and support links.

Compatibility note: Links lead to manufacturer or official retailer resources. Confirm the full model or item number, connector type, voltage, amperage, and published compatibility list before buying. Installation involving a home panel, inlet, transfer switch, or fuel plumbing should be handled as required by local code.

Deeper analysis

Open the details you need

The key decision is above. These supporting scorecards, owner signals, and evidence notes stay out of the way until you want to inspect them.

Fit and score detailsSee the class benchmarks and personalize the fit score for your needs.

Find My Generator score

75/ 100

Excellent in its class

Compared with 101 compact power stations in the current catalog.

Power87

Running and peak output versus the class

Endurance88

Stored energy versus the class

Portability8

Lower weight scores higher

Fuel flexibility85

Rechargeable, indoor-safe operation

Value97

Output or stored energy per listed dollar

Class comparison

See what each spec really means.

A number is more useful with context. Each row shows this model beside its class median and translates the difference into a percentile.

Running output

Higher than 99% of its class

This model · 2,500W
Median · 1,350W

Peak output

Higher than 75% of its class

This model · 3,600W
Median · 2,400W

Stored energy

Higher than 88% of its class

This model · 2,048Wh
Median · 1,008Wh

Product weight

Lighter than 8% of its class

This model · 48.8 lb
Median · 25.3 lb

How the score works: Scores use published specs and are relative to comparable products in this catalog. Missing specs are excluded and remaining weights are normalized. Runtime is the longest manufacturer-published figure and may use a different load or fuel than another model.

Size a generator for your own appliances

Starter Fit Score

83/ 100

Strong fit

For a 3,000W target and a $1,500 budget.

Below your running-watt target

Why it scored this way

A score you can inspect and change.

This personal score is separate from the model’s class score. It measures fit against your priorities and gives neutral partial credit when price or noise data is missing.

Power fit

22/35

500W below your running target.

Budget fit

20/20

$699 is within your budget.

Fuel fit

15/15

Rechargeable LiFePO4 battery works with your flexible fuel preference.

Portability

10/10

48.8 lb against your medium portability priority.

Noise fit

10/10

Battery operation strongly matches your quietness preference.

Use-case fit

5.5/10

Home-backup fit rewards adequate output and fuel flexibility.

Tune my profile
Testing, reviews and evidenceCheck hands-on testing status, owner reliability signals, sources, and data confidence.
Checking the hands-on test ledger…

Testing protocol

The methods behind every result.

This category-specific protocol defines the questions, equipment, conditions, outputs, and safety gates required for this exact model. Published specifications stay visibly separate from hands-on measurements.

Open the hands-on test ledger Read the full test protocol Download measurement worksheet

Manufacturer-published baselines

Rated running output

2,500W

Published

Peak / starting output

3,600W

Published

Published storage capacity

2,048Wh

Published

Product weight

48.8 lb

Published

Published sound level

Not published

Not published

These numbers organize the test plan. They are not independent confirmations.

Model-specific test matrix

Questions the measurements must answer.

01

Planned measurement

Usable AC energy

Pending

How much of Mega 2 Pro’s published storage reaches an AC load?

Charge using the manufacturer procedure, allow temperature stabilization, then discharge through a power analyzer at a fixed low load and again near 50% of rated AC output until normal automatic cutoff.

Delivered WhUsable-capacity percentageTest loadCutoff state
02

Planned measurement

Continuous output & overload behavior

Pending

Can the inverter sustain rated loads and respond predictably to short steps?

Apply a correctly rated programmable or resistive load at 25%, 50%, 75%, and 100% of rated output. Log watts, volts, frequency, temperature, fan behavior, faults, and automatic shutdown.

Sustained wattsVoltage and frequencyThermal behaviorProtection response
03

Planned measurement

AC recharge time & input energy

Pending

How long and how much wall energy does a normal full recharge require?

From normal automatic discharge cutoff, recharge to the manufacturer-defined full state with the included AC method. Log input watts, input Wh, elapsed time, charge mode, and ambient temperature.

0–100% timeInput WhPeak input wattsCharge mode
04

Planned measurement

Fan sound & thermal profile

Pending

When do fans become noticeable and how warm does the enclosure become?

At fixed loads, record A-weighted sound at 1 m and 7 m plus non-contact surface temperatures at defined enclosure points. Publish ambient sound and temperature.

dBA by loadFan-on thresholdSurface temperatureAmbient conditions
05

Planned measurement

Transfer / UPS behavior

Pending

If backup transfer is advertised, what interruption does a representative load experience?

Only when the manufacturer advertises the feature, use an isolated, instrumented load and suitable waveform capture to record transfer interruption and output behavior during repeated loss-and-return events.

Transfer timeWaveform eventLoad typePass-through limits

Controlled conditions

  • Record the exact model, serial number, firmware, sample source, and test date before any measurement.
  • Log ambient temperature, humidity, elevation, wind, surface, and background sound for every test block.
  • Record instrument model, range, accuracy, and most recent calibration or verification date.
  • Repeat timing, starting, and sound measurements three times when conditions allow; publish every valid run.
  • Keep original notes, load logs, meter exports, photos, and any excluded-run explanation with the result.

Required equipment class

  • Rated programmable or resistive AC load
  • Bidirectional watt-hour and power analyzer
  • Calibrated sound-level meter
  • Temperature logger or verified non-contact thermometer
  • Waveform capture equipment when transfer-time claims are tested

Safety gate

Use a noncombustible, ventilated test area with battery-rated emergency procedures; stop for swelling, odor, smoke, leakage, abnormal heat, or impact damage.

Testing is for qualified personnel using correctly rated load equipment and the manufacturer’s required grounding, bonding, clearance, and protective-device instructions.

Never connect a generator directly to building wiring or bypass overload, temperature, battery, GFCI, or carbon-monoxide shutdown protection.

Stop a run for unstable voltage or frequency, overheating, fuel or electrolyte leakage, abnormal sound, damaged wiring, or any manufacturer fault indication.

Badge rule: this product receives no “FMG Tested” label or score benefit until a real unit, instruments, conditions, valid runs, raw records, and limitations are documented under the public protocol.

Verified owner reliability

What happens after the honeymoon period?

Long-term reports from confirmed owners show starting, maintenance, failure, support, and recommendation outcomes for the OUPES Mega 2 Pro.

See how ownership is verified

Verified owners only

Be the first confirmed owner to report back.

Checking reports…

Reliability percentages stay hidden until at least 5 ownership-verified reports are published for this exact model — 5 more needed.

Ownership checked

Purchase or registration evidence is reviewed privately.

Time in service

Reports separate new ownership from 12+ month experience.

Failures documented

Repairs and maintenance are captured, not buried in a star.

Reports stay private while ownership and model details are checked. Contact information is never shown publicly.

Data trust & safety

Fresh specifications. Visible recall checks.

We show when this record was verified, where its specifications came from, and whether its model number appears in the official CPSC generator-recall dataset.

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Specification freshness

Last verified
Sep 15, 2026
Review target
Oct 15, 2026
Primary source
Manufacturer / official listing

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CPSC model screening

No model-number match found

39 records checked
The OUPES Mega 2 Pro model text did not match the generator recall records in our current CPSC snapshot. This is a screening result, not a guarantee or safety certification. Recalls can be serial-number specific, newly published, or use a different product description.
Search CPSC directly Dataset checked Sep 16, 2026

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Find My Generator Editorial Review

Accountable editor: Andrew Petla

Review scope: exact model identity, published specifications, calculation inputs, source quality, safety language, and affiliate independence. This is an internal editorial review, not third-party engineering, electrical, or safety certification. Hands-on testing is claimed only when a complete test record is published.Request a correction.
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