Anker SOLIX F3800 vs F3800 Plus: the real differences

Buy the Anker SOLIX F3800 Plus. The original F3800: the Anker SOLIX F3800.

Two power stations that share a name, a product page, a battery and an inverter. What separates them is the way power gets in, above all the solar inputs.

Erin RoseUpdated November 1, 20263 models from the makers’ own figuresListings checked November 1, 2026

	Model	Usable	Output	Typical day	Per usable kWh	Price
The one to buy	Anker SOLIX F3800 Plus	2,923 Wh	6,000 W	needs a recharge	—	—
The base F3800	Anker SOLIX F3800	2,798 Wh	6,000 W	needs a recharge	—	—

Amazon had no offer for either model on its own when we checked on November 1, 2026. The closest unit you can order today:

Buy this instead: EcoFlow DELTA Pro 3, $2,799. It holds at least as much (4,096 Wh) with 120 V and 240 V outlets, and Amazon sells it today. It puts out less: 4,000 W against 6,000 W.

EcoFlow DELTA Pro 3: $2,799 at Amazon

Side by side
Against one plan
Our pick
Buying it right
Questions

Who this is for

You have settled on Anker's biggest wheeled box and found two of them on one product page with almost the same name, and you want to know whether the Plus is a newer version of the thing you were about to buy or a different machine. It is a different machine. This page is about what changed and which one to order.

Side by side, from the makers’ own documents

“Not listed by the maker” means the maker pages we read do not state it. It is not a zero, and we never fill it from a sibling model. A dash in the price row means we show no Amazon price for that model tonight.

Model	Battery	Continuous output	Peak output	Weight	Solar input	Expandable	Warranty	Chemistry	Verified listing
Anker SOLIX F3800	3,840 Wh	6,000 W	9,000 W	132 lb (60.0 kg)	2,400 W	Up to 6 add-on batteries, 26.88 kWh in all with the station	5 years	LiFePO4	—
Anker SOLIX F3800 Plus	3,840 Wh	6,000 W	9,000 W	137 lb (62.0 kg)	3,200 W	Up to 6 extra batteries, 26,880 Wh total capacity	5 years	LiFePO4	—
EcoFlow DELTA Pro 3	4,096 Wh	4,000 W	8,000 W	114 lb (51.5 kg)	2,600 W	Up to 2 extra batteries via one expansion port	5 years	LiFePO4	$2,799

Against the same plan

A refrigerator, Wi-Fi, a few LED lights and phone charging for 24 hours, sized on the harder end of every range.

1,738Wh, best case

5,116Wh, worst case

860W running, worst case

3,060W starting surge

The refrigerator is almost the whole number, and the reason the answer is a range: a newer one in a cool kitchen needs 1,738 watt-hours across 24 hours, an older one opened all day needs 5,116. Wi-Fi, lights and phones barely register. Capacity does not separate these two: same battery, same output, the same 3,060 watt surge covered, both among the 20 of 82 units that cover the best case while none covers the worst.

The difference is the inputs. The base takes solar on Anker's XT-60 connector; the Plus moves to MC4, so existing Anker panels need adapters despite the page's compatibility claims. The Plus splits solar across two ports with a combined ceiling above the base unit's single rating, and one review outlet reports the base struggled to reach even its rated solar figure while the Plus charges at its rated speed on standard MC4 panels. The same outlet reports the Plus alone falls well short of its headline combined charging rate, which needs two expansion batteries, and flags the TT-30R outlet as rated below the amperage its name implies, enough to leave an RV hookup stuttering.

Model	Covers the energy	Carries the running load	Clears the surge	Typical day	Verdict
Anker SOLIX F3800	best case only	worst case	Refrigerator/freezer: starts it	needs a recharge	Clears the best case only
Anker SOLIX F3800 Plus	best case only	worst case	Refrigerator/freezer: starts it	needs a recharge	Clears the best case only
EcoFlow DELTA Pro 3	best case only	worst case	Refrigerator/freezer: starts it	needs a recharge	Clears the best case only

Where the energy goes, load by load

Load	Hours	Running watts	share of time running	Energy	Share of worst case
Refrigerator/freezer	24	100–700	see note	1,300–3,100 Wh	61%
Wi-Fi router and modem	24	15–40	100%	360–960 Wh	19%
Phone charging and small USB devices	24	10–40	20–60%	48–576 Wh	11%
A few LED lights	8	15–80	25–75%	30–480 Wh	9%

Refrigerator energy comes from ENERGY STAR’s certified models plus our allowance for the station and real use, from an efficient new fridge to an old, big one: see how much power a fridge uses. For every other load, energy = running watts × share of time running × hours, at each end of the range. The right-hand end of every row is what the plan is sized on.

The one to buyAnker SOLIX F3800 Plus

The one most people should buy

No photo yet.

3,840 Wh (2,923 usable)6,000 W continuous9,000 W peak137 lb

It suits most buyers, and anyone buying panels new or wiring a generator in.

One charge covers a typical day of this plan (about 2,900 Wh). A hard-working refrigerator/freezer may need up to about 5,100 Wh.

Full specs and sources Buy from the maker

No Amazon listing for the unit on its own has matched this model by name, battery and output, so this page has no price or buy link for it.

A refrigerator, Wi-Fi, a few LED lights and phone charging for 24 hours:

Energyonly in the best case
Running loadyes, even in the worst case
Starting surgeRefrigerator/freezer: starts it

What you give up: Neither one is named in a CPSC recall in our screen.

Owner reports and tester figures are on the model page.

Figures from ankersolix.com, captured September 29, 2026; recall screen: no published recall names this exact model (screened 2026-10-09) (how we screen, CPSC).

The base F3800Anker SOLIX F3800

The original F3800

No photo yet.

3,840 Wh (2,798 usable)6,000 W continuous9,000 W peak132 lb

It has the same battery and output as the Plus, with older inputs: solar on Anker's XT-60 plug and a lower solar ceiling. It covers this plan on an easy day but not on a hard one. It suits someone who already owns Anker panels on that plug.

Full specs and sources Buy from the maker

No Amazon listing for the unit on its own has matched this model by name, battery and output, so this page has no price or buy link for it.

A refrigerator, Wi-Fi, a few LED lights and phone charging for 24 hours:

Energyonly in the best case
Running loadyes, even in the worst case
Starting surgeRefrigerator/freezer: starts it

What you give up: What you give up is the Plus's input work: the second solar port, the higher solar ceiling, the standard MC4 plug, and a manual that documents bypass and generator switching where the base unit's record leaves pass-through and idle draw blank.

Owner reports and tester figures are on the model page.

Figures from ankersolix.com, captured August 12, 2026; recall screen: no published recall names this exact model (screened 2026-10-09) (how we screen, CPSC).

Past the first day

Stretch the same loads to three days (72 hours) of the same loads and neither is in the conversation: 5,214 watt-hours at the efficient end, 15,448 at the hard end, against two batteries that needed the best case to cover one day. Past the first evening the question is not which box but how you refill it.

Buying it right

A search for these models returns bundles, sibling models and the same unit under two prices. We link only a listing whose own title states the unit on its own with its exact battery and output. Match the model number on the label to this page. How we check a listing.

Anker SOLIX F3800 Plus: no Amazon listing passed our check, so there is no Amazon link. What we turned down.
Anker SOLIX F3800: no Amazon listing passed our check, so there is no Amazon link. What we turned down.

What this page can’t promise

Nothing here was tested by us. The specifications are Anker's own, off its product pages and manuals, and where those disagree we say so rather than quote the better number. No owner forum thread turned up for either unit, so everything labelled owner experience comes from a few hands-on review sites, and one of them, on which socket the Plus uses for EV charging, contradicts Anker's own manual and stays unresolved.

One gap: the manual we obtained for the base documents the 230-volt version of the same hardware, so its charging-input rows were set aside and only cell- and firmware-level rows used. With no new base unit on sale, the Plus is the one to buy.

Questions people ask

Is the F3800 Plus the same as the F3800?

No, though the headline numbers are identical. They are two different machines, the base being Anker's A1790 and the Plus the A1790P, with the same battery capacity, the same continuous output and the same surge rating in Anker's figures, sharing one product page, which is how the confusion starts. What changes is the input side: the solar connector, the number of solar ports, the combined charging ceiling and the documentation behind bypass charging. Confirm the model number on the box before you pay.

How long will either one run my fridge?

Through the best case of this plan and not the worst. For a refrigerator, Wi-Fi, a few LED lights and phone charging for 24 hours, a newer fridge that cycles lightly lands near 1,738 watt-hours and either unit covers it; an older one in a warm kitchen, opened all day, lands near 5,116 and neither does. That is the size of the class rather than a fault in these two: 20 of the 82 units we track cover the easy end, and not one covers the hard end.

Can I use F3800 expansion batteries with the Plus?

Yes. The Plus's own manual names the same Anker SOLIX BP3800 pack the base unit takes, and allows the same maximum number of them, so a pack bought for one is not stranded by the other. Two things reviewers report: the connection cables are long and floppy rather than a clean stack, and on the Plus the packs are also what lifts its combined charging rate to the headline figure, so an extra battery buys you input speed as well as capacity.

I already own Anker solar panels. Which one should I buy?

The base Anker SOLIX F3800 fits them without adapters, if you can find one new. Anker's panels for the base unit use its own XT-60 plug, and the Plus moved to MC4, so existing Anker panels and leads need adapters to reach it even though the product page talks about MC4 compatibility. If you are buying panels new, buy the Plus: MC4 is what most other panels use, and one review outlet reports the Plus reaches its rated solar speed where the base fell short of its own figure.