F3800 Plus
- you run a real 240V load
- you want a Home Power Panel
- you need more than 3,600W
DELTA 3800 Gen4
- 120V covers everything you run
- you can lift 67.5 lb but not 135.6
- a PC needs under 10ms
Prices and stock checked by our price engine on November 13, 2026 at 6:29 AM EST. Each product is rechecked several times a day; the time refreshes when you load the page.
Nearly the same battery at half the weight: without a 240V load, the F3800 Plus hauls 68 extra pounds for nothing.
The Anker SOLIX F3800 Plus stores 3,840Wh and the EcoFlow DELTA 3800 Gen4 stores 3,763Wh, so energy doesn’t separate them. Class does. The Anker is a 135.6 lb rolling home unit with 6,000W at 120V and 240V, an L14-30R, 3,200W of solar and Anker’s Home Power Panel. The EcoFlow is a 67.5 lb, 120V box with 3,600W and a faster UPS. If you can’t name a 240V appliance you’d run, the EcoFlow is the one to buy.
Below: the five gaps that matter, a 20-second calculator, eight situations picked for this pair, and what reviewers found on the F3800 Plus. As of November 5, 2026, no full independent review of the DELTA 3800 Gen4 had been published.
Prices $700.99 apart today, 77Wh apart in capacity. They aren’t the same class of machine: the F3800 Plus brings 240V, 2,400W more output and 1,200W more solar; the DELTA 3800 Gen4 drops 68.1 lb and switches faster. One question decides it: do you own a load that needs 240V?
- you run 240V
- you want a panel install
- you’ll grow past 12kWh
- 120V is enough
- it has to move by hand
- you want a quicker UPS
The five differences that decide it
Both use LFP cells and both take extra batteries, with a 30A RV-style outlet and a 5-year warranty after registration. Capacity sits within 2%. These five gaps are where the two stop being alike.
Will it run your setup? Check in 20 seconds
Estimates use 85% usable capacity and 70% of rated solar output. Real results vary with temperature, inverter load, shade and appliance cycling. Fridge and freezer watts are daily averages and do not include compressor startup surges.
Runtime by appliance, one at a time
Simple energy estimates, not measured runtimes. About 3,264Wh usable on the F3800 Plus and 3,199Wh on the 3800 Gen4: a 2% gap you won’t notice. PCMag saw about 30 to 40W of background draw on the Anker while operating, which this table leaves out.
Practically a tie: the F3800 Plus holds only 2% more than the 3800 Gen4.
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The price gap, in numbers
The Anker SOLIX F3800 Plus costs $700.99 more than the EcoFlow DELTA 3800 Gen4 and adds 77Wh: that is $9.10 per extra Wh, against $0.45 per Wh for the 3800 Gen4.
Prices refresh daily from Anker US and EcoFlow US.3800 Gen4 + DELTA 3 Max Plus battery (5,811Wh) costs $1,641.98 less today.
We skip a cost-per-cycle card here: Anker lists 3,000+ cycles (its page also shows 4,000 to 80%), and EcoFlow lists 6,000 to 70%, two different end points. Neither total includes panel work. The Home Power Panel and its installation are extra.
Eight modeled situations, worked out
Same formula as the calculator above: 85% of rated capacity, panels at 70% of their rating. Wattages are round figures for illustration; check your own nameplates.
A 240V well pump
This is the question that ends the comparison. If you have this load, only the F3800 Plus does the job, and the EcoFlow’s lighter box stops mattering.
Central air and the kitchen together
The EcoFlow’s 7,200W surge covers a start, not a steady load. Continuous power above 3,600W belongs to the Anker, and its group limits apply: 2,400W per three 5-20R outlets.
Up a flight of stairs
Wheels help the Anker on flat floors, and reviewers noted small bumps can stop them. The EcoFlow has no wheels, so plan a folding cart if you move it often.
Topping up an EV
Anker asks you to set the charging rate below 25A, and a 14-50 plug needs an L14-30 adapter. With about 3.3kWh usable, treat it as a short emergency top-up.
A big array on a clear day
The Anker wins, and its inputs accept 165V, so long series strings fit. The EcoFlow’s ports stop at 60V, which means smaller strings in parallel.
A desktop PC on UPS
Under 10ms leaves more margin. Still, PCMag reported a desktop workstation kept running on the Anker through simulated outages. Its bypass stops at 1,440W, and EcoFlow has no HID link.
Two days on the essentials
Alone, they tie at about 23 hours. The first battery changes that: Anker’s adds 3,840Wh, EcoFlow’s DELTA 3 Max Plus battery 2,048Wh. Six BP3800 go far beyond anything the EcoFlow reaches.
A week on standby, AC switched on
Different sources, so read this as a direction. At those rates, the Anker burns 5 to 6.7kWh in a week, more than a full charge; the EcoFlow about 2.4kWh. Turn AC off when you can: EcoFlow lists 3W in standby.
Nine more differences, the spec sheet and the box
Smaller gaps that rarely decide the purchase, then the full specifications and what ships in the box.
F3800 Plus and DELTA 3800 Gen4 weight, dimensions and full specifications
Weight: 135.6 lb for the F3800 Plus and 67.5 lb for the DELTA 3800 Gen4. Dimensions: 27.6 × 15.3 × 15.6 in and 16.77 × 11.36 × 12.09 in. Everything else is in the sheet below.
Anker SOLIX F3800 Plus and EcoFlow DELTA 3800 Gen4 full specifications
Every published figure for both units, grouped. Green marks the better value.
What’s in the box
F3800 Plus
- F3800 Plus power station3,840Wh, 135.6 lb
- AC charging cable
- Solar charging cables × 2
- User manual
- Generator Input Adapter sold separatelyneeded for 240V generator charging
DELTA 3800 Gen4
- DELTA 3800 Gen43,763Wh, 67.5 lb
- AC charging cable
- Two solar charging cablesXT60i to LP60
- AC cable retention kit, manuals and warranty card
- Expansion adapter and batteriessold separately
From the brands’ US product pages and manuals.
06 · ChargingHow fast each one refills
Shorter bar, faster refill. Each row is scaled to its slower unit.
F3800 Plus: 3,300W from a 240V generator with the Generator Input Adapter; pure sine wave and under 5% THD required3800 Gen4: 3,200W from the Smart Generator 4000 through the battery port, 1,800W from any generator over AC
Our solar times assume panels deliver 70% of their rating; the brands’ figures assume ideal sun.
Every port, side by side
F3800 Plus
DELTA 3800 Gen4
The Anker has more outlets: six 5-20R, a TT-30R, an L14-30R and a 12V socket. The EcoFlow answers with four 20A outlets, a 30A outlet and three USB-C, one at 140W.
08 · NoiseNoise: F3800 Plus vs 3800 Gen4
AppleInsider heard the Anker SOLIX F3800 Plus reach up to 60dB under heavy load, with no distance given. EcoFlow rates the EcoFlow DELTA 3800 Gen4 at up to 50dB at full power, at 1 m.
A reviewer’s reading against a brand figure, so treat the gap with care.Every figure we found, with its source
What reviewers heard: Whisper-quiet until heavily loaded, then fans up to 60 decibels (AppleInsider).
Measured by a tester Brand figure
- Keep heavy charging away from the hours you sleep near either unit.
Cold and heat: F3800 Plus vs 3800 Gen4
A split: the Anker SOLIX F3800 Plus runs colder, down to −4°F, and the EcoFlow DELTA 3800 Gen4 takes more heat, up to 113°F. Neither charges below 32°F.
Figures from the F3800 Plus user guide (A1790P) and EcoFlow’s US tech specs.- Recharge either one above 32°F.
- In a hot shed, the F3800 Plus reaches its limit first, at 104°F.
App, UPS and smart features
The Anker SOLIX F3800 Plus is a home system, with a panel, a transfer switch and EV mode. The EcoFlow DELTA 3800 Gen4 is a standalone box with a quicker UPS and a storm mode EcoFlow doesn’t tie to a panel.
Wi-Fi and Bluetooth on each.Green zone: a switch under about 16ms, which most desktop PCs ride through without restarting.
Does it connect to a home panel? The Anker SOLIX F3800 Plus works with Anker’s Home Power Panel, Double Power Hub and Transfer Switch. EcoFlow’s table lists none for the EcoFlow DELTA 3800 Gen4.
Can it deliver 240V? The Anker SOLIX F3800 Plus delivers 120V and 240V at once. The EcoFlow DELTA 3800 Gen4 has no 240V side at all.
Can it start a generator by itself? The EcoFlow DELTA 3800 Gen4 starts and stops a compatible EcoFlow generator through its battery port. Anker lists no automatic start for the Anker SOLIX F3800 Plus.
Does it work as a UPS? The EcoFlow DELTA 3800 Gen4 switches in under 10ms. The Anker SOLIX F3800 Plus takes 20ms on its three left outlets when plugged into a 120V outlet, with a 1,440W bypass.
Does it prepare for storms? The Anker SOLIX F3800 Plus needs the Home Power Panel for Storm Guard. Storm Guard 2.0 on the EcoFlow DELTA 3800 Gen4 depends on region, network and settings, and EcoFlow doesn’t tie it to a panel.
Can you add a battery later? The Anker SOLIX F3800 Plus takes six BP3800. The EcoFlow DELTA 3800 Gen4 takes two extra batteries of 2,048Wh or 4,096Wh.
Warranty and support
Five years on both once registered: with Anker for the Anker SOLIX F3800 Plus, in the EcoFlow app for the EcoFlow DELTA 3800 Gen4.
Neither reaches 5 years by itself: do the registration.Subject to each brand’s warranty terms and eligibility.
The ratings don’t line up. Anker’s page shows 3,000+ cycles and also 4,000 to 80%, while EcoFlow’s 6,000 runs to 70% in lab conditions. A lower end point lets a battery claim more cycles.
- Register the F3800 Plus with Anker.
- Open the EcoFlow app and register the DELTA 3800 Gen4 there.
What reviewers report
We have not lab-tested these two units. As of November 5, 2026, no full independent review of the DELTA 3800 Gen4 had been published. Its side of this page comes from EcoFlow’s US product page and FAQ. For the F3800 Plus, here is what published reviews found, with the source, author and date for each point.
F3800 Plus: PCMag (May 2026), How-To Geek (March 2025), AppleInsider (August 2025), Gear Diary (April 2025)DELTA 3800 Gen4: no verifiable independent test found
Usable capacity
- F3800 PlusReviewer With an expansion battery it ran a full-size fridge about 63 hours, delivering roughly 4,248Wh of AC. PCMag, Michael Lydick, May 2026
- F3800 PlusReviewer Running AC, fridge, lights and TV off-grid, the display estimated about two hours. Gear Diary, Travis Ehrlich, April 2025
Charging
- F3800 PlusReviewer Refilling from empty took roughly 9,000Wh from the wall, about 85% round-trip efficiency. PCMag, Michael Lydick, May 2026
- F3800 PlusReviewer Solar input rises to 3,200W and 165V, so third-party panels can run in series. How-To Geek, Bertel King, March 2025
- F3800 PlusReviewer A PS400 solar panel easily gave 170W or more in testing. AppleInsider, Wesley Hilliard, August 2025
Noise and heat
- F3800 PlusReviewer Whisper-quiet until heavily loaded; then fans may reach 60 decibels (no distance given). AppleInsider, Wesley Hilliard, August 2025
UPS and output
- F3800 PlusReviewer Kept a desktop workstation running through simulated outages without a reboot. PCMag, Michael Lydick, May 2026
- F3800 PlusReviewer The 240V port was replaced by a 120V TT-30R, a loss for users of a 50A home inlet. How-To Geek, Bertel King, March 2025
Daily use and issues
- F3800 PlusReviewer Background draw averages about 30 to 40W while operating, which adds up over days. PCMag, Michael Lydick, May 2026
- F3800 PlusReviewer The original F3800 uses over 1kWh a day idle; the Plus draws slightly less, maybe an extra hour or two. How-To Geek, Bertel King, March 2025
- F3800 PlusReviewer Weighs 136.7 lb; small bumps can stop the wheels. AppleInsider, Wesley Hilliard, August 2025
- F3800 PlusReviewer Easy to move with the trolley handle despite weighing 132.3 lb. Gear Diary, Travis Ehrlich, April 2025
Practical limits before you buy
- Check Anker’s stock first. Anker US showed the F3800 Plus as sold out on November 5, 2026. The live badge near the top shows where it stands today.
- The Anker can’t use 240V while charging from 120V AC. Plan refills around that.
- Neither has a NEMA 14-50. The Anker’s 240V is an L14-30R, and the EcoFlow has no 240V.
- The 9,000W surge you may see belongs to the original F3800. Anker lists no surge for the Plus.
- On a 120V wall outlet, the Anker’s outputs narrow. Only the TT-30R and the three left 5-20R outlets work, with a 1,440W bypass.
- EcoFlow’s 12kWh depends on a battery that showed unavailable on November 5, 2026. Two 2,048Wh batteries reach 7,859Wh.
- The 3800 Gen4 has no 12V socket. The Anker has one, at 10A.
- Anker’s weight varies by document. The user guide says 135.6 lb, the US page 136.7 lb. Either way, plan on two people for steps.
Frequently asked questions
Is the DELTA 3800 Gen4 a real alternative to the F3800 Plus?
For 120V use, yes: 3,763Wh against 3,840Wh at half the weight. For 240V, no. It has no 240V output, and it stops at 3,600W against 6,000W.
Which is cheaper?
The EcoFlow DELTA 3800 Gen4 costs $700.99 less today: $1,699, against $2,399.99 for the Anker SOLIX F3800 Plus. Prices refresh daily.
Can I still buy the F3800 Plus?
Anker US showed the F3800 Plus as sold out on November 5, 2026. If it’s sold out when you check, the badge at the top of this page will say so. BP3800 batteries are listed separately.
Can the DELTA 3800 Gen4 power a 240V appliance?
No. It’s 120V only, and EcoFlow lists no way to reach 240V with it. The DELTA Pro 3 is EcoFlow’s route to 240V.
Which one is easier to move?
On flat ground, the F3800 Plus rolls. Anywhere with steps, the DELTA 3800 Gen4: it weighs 67.5 lb against 135.6 lb, though it has no wheels of its own.
Which is better on solar?
The F3800 Plus: 3,200W at up to 165V, about 1.7 hours from empty at 70% of panel rating. The DELTA 3800 Gen4 takes 2,000W at up to 60V, about 2.7 hours.
How far does each expand?
The F3800 Plus reaches 26.9kWh with six BP3800, and 53.8kWh with two units. The DELTA 3800 Gen4 takes two extra batteries, about 12kWh at most by EcoFlow’s count.
Has anyone reviewed the DELTA 3800 Gen4?
Not in full. As of November 5, 2026, no full independent review of the DELTA 3800 Gen4 had been published. The F3800 Plus has reviews from PCMag, How-To Geek and AppleInsider, among others.
Related comparisons and reviews
How we compared and sources
Research-based comparison. We have not physically tested these two units, and no full independent review of the DELTA 3800 Gen4 existed on November 5, 2026. Specs come from Anker’s US page and user guide and from EcoFlow’s US product page and FAQ. Usage observations are attributed to named reviewers. Prices and availability were checked on November 5, 2026.
- Specs: Anker US, F3800 Plus and its US user guide (A1790P), read on November 2, 2026, stock rechecked on November 5, 2026, and EcoFlow US, DELTA 3800 Gen4 with its FAQ and footnotes, read on November 5, 2026.
- Anker’s page gives both 3,000+ cycles and 4,000 cycles to 80%; we show the lower figure. Its page says 136.7 lb and its user guide 135.6 lb; we use the guide.
- Reviewer reports on the F3800 Plus: PCMag, Michael Lydick, May 2026, How-To Geek, Bertel King, March 2025, AppleInsider, Wesley Hilliard, August 2025, Gear Diary, Travis Ehrlich, April 2025.
- Runtime = capacity × 0.85 ÷ watts. Solar harvest = min(panel watts, max input) × sun hours × 0.70. Cost per lifetime kWh = price ÷ (cycles × capacity in kWh).
About 3.8kWh on both: 240V and 6,000W at 135.6 lb, or 120V and 3,600W at 67.5 lb.
Prices checked November 13, 2026 at 6:29 AM EST
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Originally published: November 7, 2026