Product comparison · Home Backup Power Systems
OUPES Guardian 6000 V2 vs FOSSiBOT F7200
The OUPES Guardian 6000 V2 scores 6.7 and ranks 8th of 14 in Home Backup Power Systems; the FOSSiBOT F7200 scores 5.9 and ranks 14th of 14 in Home Backup Power Systems. The Guardian 6000 V2 leads on recharging, the F7200 on power output.
All 7 OUPES products 
OUPES Guardian 6000 V2
$2,699 · 8th of 14 in Home Backup Power Systems
Buy Now- Recharging — 8 against 7
6.7
5.9
All 4 FOSSiBOT products 
FOSSiBOT F7200
$3,299 · 14th of 14 in Home Backup Power Systems
Buy Now- Power Output — 10 against 8
Across everything we scored, OUPES Guardian 6000 V2 sits 0.79 ahead — led by recharging.
Verdict
Guardian 6000 V2 ahead · +0.79 (6.7 vs 5.9)Pick the OUPES Guardian 6000 V2 when
Recharging matters8vs7
Price matters$2,699vs$3,299
More room to expand matters20 kWh or morevs10-19.9 kWh
Pick the FOSSiBOT F7200 when
Power output matters10vs8
Battery life matters10vs8
Capacity matters8vs7
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 Guardian 6000 V2
- 12/24 V XT90 output removed from the V1, per one channel
FOSSiBOT F7200
- Inverter firmware read v0.0 in the app, with no logs or safety alerts, per one owner
- No IP rating for water or dust, per one reviewer
- Outlet covers in the way enough to consider removing them, per one channel
Where the OUPES Guardian 6000 V2 and FOSSiBOT F7200 differ
Scores on a 0–10 scale. Each row is one criterion, biggest difference first.
Capacity
+1 FOSSiBOTBattery Life
+2 FOSSiBOTRecharging
+1 OUPESBackup Readiness
tiedVerification
tiedWarranty & Support
tiedValue
one side unscoredWhat OUPES Guardian 6000 V2 and FOSSiBOT F7200 owners report
Independent sources, scored for each model. Guardian 6000 V2 on 5 of five, F7200 on 4.
The OUPES Guardian 6000 V2 reading covers its product line.
What they say
OUPES Guardian 6000 V2
- Owner posts on the Guardian 6000 V1, which shares the V2's battery, inverter and outlets, sit in r/OUPES_info and r/Generator; no V2 owner report beyond a purchase question was found.
- One suburban owner called the V1 well built and doing everything it claims, and another runs it through a Generlink meter collar for outages.
- Owners in a thread on long-term reliability called the app poor and missing a dark-start feature while calling the hardware reliable.
FOSSiBOT F7200
- In r/Portable_PowerStation a European owner's F7200 showed its inverter firmware as v0.0 in the BrightEMS app, with no logs or safety alerts, and FOSSiBOT support had not answered WhatsApp messages or emails for weeks (March 2026).
- In r/SolarDIY an owner said the F7200 dies after a while and is no longer detected in BrightEMS (December 2025).
The OUPES Guardian 6000 V2 reading covers its product line.
What they say
OUPES Guardian 6000 V2
- PCMag rated the Guardian 6000 V2 4.0 of 5 from testing done on the V1, measured 3,850 to 3,970 Wh usable on AC (84 to 86 percent), and faulted a 70 W-plus standby draw, no 240 V output during AC charging and bulky expansion cables (August 2026).
- TheSolarLab, which earns affiliate commission, tested the V1, charged it in 3 hours 12 minutes on 120 V and about 1.5 hours on 240 V, measured about 85 percent inverter efficiency and a 75 W idle draw, and found it kept drawing about 1,000 W for 30 minutes after showing 100 percent.
FOSSiBOT F7200
- Guru3D, which tested a 230 V European unit and posts FOSSiBOT discount codes for the EU and US stores, found the build solid, the wheels and telescopic handle easy to move and the BrightEMS app reliable for monitoring, but noted no IP rating, no certified transfer equipment for home integration, and value hard to justify for permanent home storage at about €2,699; it published no measured capacity or charge time, and its spec table lists 3,600 W continuous and 1,600 W of solar, figures FOSSiBOT's pages do not give (July 2026).
YouTube
+2 OUPESBoth readings are about these exact models.
What they say
OUPES Guardian 6000 V2
- The Old Jarhead, which received the V2 from OUPES and earns commission through an affiliate link and discount code, tested it beside the V1 and took about 2,400 W from two arrays at once, about 800 W at 72 V and 1,600 W at 144 V, while running 2,600 W of heaters on pass-through (September 2026, about 7,800 views).
- The channel had criticised the V1's 15 A solar limit in March and noted that the V2 drops the V1's 12/24 V XT90 output.
FOSSiBOT F7200
- ReeWray Outdoors, which passes on a FOSSiBOT discount code and links to the Amazon US listing, ran the F7200 through its own manual transfer switch to a room and barn circuits, started a 12-inch miter saw without trouble, and said it would be tempted to remove the outlet covers (January 2026, about 26,000 views).
Amazon
+2 OUPESThe OUPES Guardian 6000 V2 reading covers its product line; the FOSSiBOT F7200 reading covers its product line.
What they say
OUPES Guardian 6000 V2
- The Amazon review file shared by the V2 unit and solar kit listings (B0G38Z8Q1N, B0G398CGPS), both currently unavailable, reads 4.2 from 87 ratings, 68 percent five-star and 8 percent one-star, and includes reviews of the single-MPPT V1.
- Owners report running refrigerators, lights and a 240 V well pump, against complaints about 2.4 GHz-only Wi-Fi and units bricked after a firmware update or within three months.
FOSSiBOT F7200
- FOSSiBOT's unit-only F7200 listing on Amazon US (B0HGBLBTFF, $3,699.00, sold by HK Hongli Tech) has no ratings, so this reads the F3600 Pro's station listing (B0FP9RTPXL, titled F3600): 4.4 from 28 ratings, 78 percent five-star and 9 percent one-star; its written reviews sit behind sign-in.
Owner reviews
one side unscoredThe OUPES Guardian 6000 V2 reading covers the whole brand; no usable source for the FOSSiBOT F7200.
What they say
OUPES Guardian 6000 V2
- No US retailer lists the Guardian 6000 V2, and no other Guardian station carries a retailer review.
- The only rated OUPES station file at a US retailer is Walmart's Mega 1 and Mega 1 Lite listing (item 11344470227), sold by OUPES's own store: 4.3 from 136 ratings, 4.3 from 132 with Walmart's four incentivized reviews set aside, for a 1,024 Wh portable station rather than this one.
FOSSiBOT F7200
No usable source.
OUPES Guardian 6000 V2 vs FOSSiBOT F7200: pros and cons
What each one does well, and where it falls short.
OUPES Guardian 6000 V2
Strengths
- 120/240 V split-phase from one unit6,000 W at 240 V
- Expands to a rated 41.4 kWh with eight G5 batteries
- Two MPPT solar inputs3,600 W of solar charging
- Full charge in 84 minutes at 3,600 W on 240 V AC
- 84 to 86 percent usable on AC in PCMag's test of the V1which shares its battery and inverter
Drawbacks
- No OUPES transfer switchinlet box or home panel
- No 240 V output while charging from the gridand pass-through capped at 2,400 W
- About 70 to 75 W idle drawmeasured on the V1 by PCMag and TheSolarLab
- 111.8 lb
- 240 V charging cable not in the box
- OUPES gives the solar voltage limit as both 165 V and 175 V
FOSSiBOT F7200
Strengths
- 7,200 W continuous with a 9,000 W surge
- 120 V and 240 V split-phase from one unit
- 6,500 cycles to 80 percent on EVE LiFePO4 cells
- About 2.2 hours to full at 3,000 W on 240 V
- 2,500 W high-voltage plus 1,200 W low-voltage solar input
- UPS switchover under 10 ms
- Takes two FB5222 batteries15,667 Wh in all
- AC input adjustable from 600 W to 3,000 W by a knob
Drawbacks
- FOSSiBOT sells no transfer switchinlet box or panel for it on its US store, though its page shows connecting one
- UPS mode carries no more than 1,800 W at 120 Von two outlets only
- A 120 V wall charge takes about 3.5 hours at 1,800 W
- Full 240 V charge stated as about 2.2 hours on the US page and about 2.5 hours in the US manual
- Low-voltage solar window stated as 12 to 55 V on the US page and 12 to 50 V in the manual
- Input drops to 2,000 W above 85 percentand low-voltage solar stops at 70 percent by FOSSiBOT's US blog
- Its Amazon US title claims a 1-hour chargethe US page gives about 1.5 hours at 5,200 W combined input
- FOSSiBOT's US warranty policy covers only orders placed on us.fossibot.com and states no term for a unit bought on Amazon or Walmart
OUPES Guardian 6000 V2 vs FOSSiBOT F7200: the numbers
Price, scores and rank, then only the specs that differ. Green marks the side with more.
- Rated cyclesOUPES4,000-5,999 cyclesFOSSiBOT More6,000 cycles or more
- Backup switchoverOUPES11-20 msFOSSiBOT More10 ms or less
- Expandable toOUPES More20 kWh or moreFOSSiBOT10-19.9 kWh
- WeightOUPES111.8 lbFOSSiBOT154.3 lb
Same on both
- 4,000-5,999 WhCapacity
- 6,000 W or moreAC output
- 120/240 V split-phaseOutput voltage
- LiFePO4Battery chemistry
- 2,000-3,999 WSolar input
- None verifiableSafety listings
- 5 YearsWarranty
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OUPES Guardian 6000 V2 vs FOSSiBOT F7200: common questions
Is the OUPES Guardian 6000 V2 better than the FOSSiBOT F7200?
On our scores, the OUPES Guardian 6000 V2 is ahead, 6.7 against 5.9. The OUPES Guardian 6000 V2 leads on recharging (8 against 7). The FOSSiBOT F7200 leads on power output (10 against 8), battery life (10 against 8) and capacity (8 against 7).
Which is cheaper, the OUPES Guardian 6000 V2 or the FOSSiBOT F7200?
The OUPES Guardian 6000 V2, at $2,699 against $3,299: $600 less.
What do owners say about the OUPES Guardian 6000 V2 and the FOSSiBOT F7200?
Across 4 independent sources scored for both, the OUPES Guardian 6000 V2 is ahead on Reddit, Google, YouTube and Amazon.
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Scores calculated 10 October 2026 · Products excluded where fewer than two independent sources cover them · · How we score