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Head-to-head test

EcoFlow DELTA Pro Ultra vs BLUETTI Apex 200 + B500K

Whether you need more than 3,600W or a 240V circuit, because the DELTA Pro Ultra's 7,200W, 240V-capable inverter is the one thing it does that the bigger, longer-rated Apex 200 + B500K can't.

Black Friday · 23 days out

Price to beat:DELTA Pro Ultra $3,989

The lowest we have recorded. A Black Friday price above it is a sale this unit has already had.

Black Friday deals →

Full profiles: EcoFlow DELTA Pro Ultra →

Written by Gunner GustafsonUpdated

Whole-Home Backup Tester, Station Arena Test Desk

Stack these against 100+ rivals
MethodologyReader-supported — we may earn from links (details)

Spec deltas

Capacity
6,144Wh
7,680Wh
Output
7,200W
3,600W
Weight
181.8 lb
158.7 lb
Typical price
$4,199
$2,799
Cost / Wh
$0.68
$0.36
Cycle life
3,500
6,000
Solar input
5,600W
3,000W
01

Gunner’s take

Whole-Home Backup Tester

The Apex 200 + B500K holds 7,680Wh to the DELTA Pro Ultra's 6,144Wh and costs $1,400 less. On battery alone this is over before it starts.

The DELTA Pro Ultra's answer is its inverter. It runs 7,200W continuous and puts out 240V, and the Apex 200 tops out at 3,600W on 120V onlyB2. That gap decides the page for anyone with central air or a 240V well pump. For everyone else it's capacity they paid for and never reach.

The Apex also carries the longer cycle rating, 6,000 against 3,500, so the cheaper system is the longer-rated one as well.

02

What the Numbers Reveal

Each conclusion stated first — the numbers behind it on one line, the full analysis below.

F1

continuous output

For a fridge, a freezer and the router, the Apex's ceiling is nowhere near; the 8-Hour Blackout load here peaks at 150W. Central air is where the DELTA Pro Ultra's inverter becomes the reason to buy it, and Home Depot owner reviews say it runs a 3-ton central ACA4.

DELTA Pro Ultra: 7,200W continuous, 10,800W surge, 240V outputApex 200 + B500K: 3,600W, 120V onlyB23,600W is exactly what a 30A, 120V RV outlet passesB15

Why it mattersIf your outage plan includes central air or a 240V well pump, buy the DELTA Pro Ultra; if it's the kitchen and the router, the extra inverter sits idle.

F2

rated cycles

EcoFlow rates its cells to 80% remaining and BLUETTI to 70%, which trims the Apex's lead without erasing itA2B1. Put the prices through it and the Apex costs $0.06 per lifetime kWh to the DELTA Pro Ultra's $0.20.

Apex 200 + B500K: 7,680Wh, 6,000 cycles to 70%B1DELTA Pro Ultra: 6,144Wh, 3,500 cycles to 80%A2Rated lifetime energy: 46,080kWh against 21,504kWh

Why it mattersFor anyone cycling daily off solar, this is the row that should decide the purchase.

F3

weight

Add a car socket, an Anderson port and 140W USB-C on the baseB4, and the Apex is the one I'd load into a travel trailer for the summer and bring back to the kitchen in the fall. Both have an RV outlet. Only the Apex has the 12V side to go with it.

Apex 200 + B500K: 158.7 lb in total, a 59.5 lb baseB8 and a B500K of about 99.2 lbB21DELTA Pro Ultra: 181.8 lb, no 12V car socketApex base unit: 12V car outlet, 12V/30A Anderson port, 140W USB-CB4, TT-30R RV outletB3

Why it mattersIf the battery has a second life on the road, the Apex is built for it.

The specific dimensions that decide these two units — everything else is a tie.

PowerScore Breakdown

Selected because: The DELTA Pro Ultra scores higher on raw muscle, and this is where you find out whether you need it.

overall power score

The DELTA Pro Ultra is the higher-scoring of the two, and nearly all of that comes from its inverter: 7,200W continuous against 3,600W, a 10,800W surge rating and 240V output. BLUETTI hasn't published a surge figure for the Apex 200, so for a big compressor start only the DELTA Pro Ultra has a number to hold it to.

The Apex's 3,600W is exactly what a 30A, 120V RV outlet passes, and it only reaches that with an expansion battery attached, which this bundle hasB15B22. Inside that ceiling, the two run the same fridge the same way.

Lifetime Value

Selected because: The Apex is rated to deliver a little more than twice the lifetime energy, and it starts cheaper.

cost / lifetime kWh

The Apex wins this row outright. It's rated for 46,080kWh of lifetime energy against 21,504kWh and starts cheaper, so it costs $0.06 per lifetime kWh against $0.20. The DELTA Pro Ultra carries a 5-year warranty, and BLUETTI hasn't published a term for the Apex 200. That's the one entry on this row that should give you pause.

I'd buy the Apex and spend part of the difference on panels, unless my house had central air I wasn't willing to give up.

Growth Path

Selected because: Both add batteries, and the DELTA Pro Ultra's 5,600W solar input against 3,000W decides which refills a big bank faster.

solar input

Both stacks grow. The Apex takes up to six B300K or B500K batteries, 33.28 kWh by BLUETTI's figuresB9. The DELTA Pro Ultra's 5,600W of solar input is the stronger refill, nearly double the Apex's 3,000W, and a big bank is only as useful as the roof that refills it.

The Apex answers with how its solar arrives. 2,000W of its input takes 60 to 280VB5, so panels at the far end of a property can be wired in long strings that lose less in the cableB16.

Your Life, Your Pick

Selected because: Every load here fits both, so the rows come down to margin and where each system can go.

Capacity never separates them here. The 8-Hour Blackout uses about a quarter of the Apex's usable battery and under a third of the DELTA Pro Ultra's. Van life is the one row with a winner. The DELTA Pro Ultra ends a full day at 90% used with 537Wh left, and the Apex at 72% with 1,843Wh.

Neither is a camping or tailgate box. At 158.7 lb and 181.8 lb in total, both roll off a truck bed rather than ride in a trunk.

Every port, labelled

What plugs in where, and how much it takes

EcoFlow DELTA Pro Ultra

Front panel

12
  1. 12× USB-C · 100 WOutTwo USB-C ports behind the flap printed USB-C: up to 100 W each, 200 W together.
  2. 22× USB-A · 12 WOutTwo USB-A ports behind the flap printed USB-A: 5 V at 2.4 A, 12 W each, 24 W together.

The four covers below the screen are printed 120V 20A - BACKUP UPS, 120V 20A - ONLINE UPS, 120V 30A - ONLINE UPS and 120V/240V 30A; the outlets behind them are mapped below. The door at the right end covers the side panel, also mapped below; EcoFlow’s manual puts a port for its 4G dongle behind the left one.

Photo: EcoFlow · Product image, EcoFlow US store · numbers and labels are ours. Port names printed on EcoFlow’s panel; ratings from EcoFlow’s US spec table.

Outlets and side panel

132967854
  1. 14× 20 A outletsOutFour NEMA 5-20 outlets, 120 V at 20 A each. The covers are printed 120V 20A - BACKUP UPS over the left pair and 120V 20A - ONLINE UPS over the right pair: EcoFlow rates online UPS at 0 ms and backup UPS under 20 ms. All the AC outlets share 7,200 W.
  2. 2TT-30 RV · 30 AOutA TT-30 RV outlet, 120 V at 30 A, printed 120V 30A - ONLINE UPS. A camper’s 30 A cord plugs straight in.
  3. 3L14-30 · 120/240 VOutA NEMA L14-30 twist-lock, 120/240 V at 30 A, printed 120V/240V 30A. On backup UPS (under 20 ms).
  4. 412 V DC out · 378 WOutA DC output, 12.6 V at 30 A, 378 W max. EcoFlow’s manual says it supports car-socket (cig lighter) appliances.
  5. 5Low-PV solar in · 1,600 WInThe low-voltage solar input: 30–150 V at 15 A, up to 1,600 W. EcoFlow includes a cable from MC4 panels to this port.
  6. 6AC inInThe AC charging inlet: 100–120 V at 15 A, or 200–240 V at 12.5 A. The small switch above it sets the charging speed.
  7. 7High-PV solar in · 4,000 WInThe high-voltage solar input, with the PV switch that turns solar charging on: 80–450 V at 15 A, up to 4,000 W. MC4 panel leads plug straight in. With the Low-PV input, 5,600 W of solar in all.
  8. 8Power In/Out · 30 AIn · OutEcoFlow’s Power In/Out port: 120 V or 240 V at 30 A. EcoFlow’s manual lists it for charging from a generator or an EV charger.
  9. 9Battery portIn · OutConnects the inverter to its battery (cable shown plugged in). One inverter takes up to five batteries, 30 kWh by EcoFlow’s store page.

Beside the AC inlet: a ground screw and the AC charging-speed switch. The DC output, the solar inputs and the AC inlet sit behind covers that are shown open.

Photo: EcoFlow · Product image, EcoFlow US store · numbers and labels are ours. Port names from EcoFlow’s manual; ratings from EcoFlow’s US spec table and manual; cover printing read from EcoFlow’s store picture.

Strengths & trade-offs

EcoFlow DELTA Pro Ultra

Strengths

  • +Higher AC output
  • +Longer warranty
  • +Faster solar charging

Trade-offs

  • –Substantially more expensive (+$1,400) than the Apex 200 + B500K.
  • –Significantly heavier (+23.1 lbs), making it harder to move.
  • –Very heavy unit that may be difficult for one person to lift.
  • –Shorter-lived battery — rated for 3,500 charge cycles vs the Apex 200 + B500K's 6,000, so it wears out sooner.

BLUETTI Apex 200 + B500K

Strengths

  • +Costs $1,400 less
  • +Lighter by 23.1 lb
  • +Larger battery capacity
  • +Rated for 6,000 charge cycles — much longer battery lifespan

Trade-offs

  • –Weaker inverter (-3,600W) limits appliance compatibility.
  • –Very heavy unit that may be difficult for one person to lift.
03

Will It Power Your Gear?

Scenario math and per-appliance runtimes, modeled from the spec record.

Scenario verdicts

We ran the math on six real-world scenarios. Here's which unit survives your actual life.

SCN-01 · 2 nights · needs 2,100Wh

Weekend Camping

Two nights off-grid with essential comfort

Neither unit

Scoring these two at a campsite is a category error: neither travels — the DELTA Pro Ultra is 181.8 lbs and the Apex 200 + B500K 158.7 lbs, and at those weights they roll off a truck bed if they go anywhere at all. The 2,100Wh here is trivial for either — it's the going that doesn't happen. If you need power away from the building, you're shopping the wrong class.

Camping power station guide →

Battery budget usedlower = more headroom

LOAD  Phone Charger 15W×6h · LED Lights 40W×8h · Box Fan 75W×14h · CPAP Machine 40W×16h

SCN-02 · 8 hours · needs 1,645Wh

8-Hour Blackout

Keep the essentials running through a night without power

Either unit

Both get through the night with most of the battery untouched, the Apex 200 + B500K at about a quarter used and the DELTA Pro Ultra just under a third. Call it a tie on capacity and decide on what else the house needs to run.

Emergency blackout power guide →

Battery budget usedlower = more headroom

LOAD  Fridge 150W×8h · Router + Modem 20W×8h · LED Lights (4 bulbs) 40W×6h · Phone Charger 15W×3h

SCN-03 · 8 hours · needs 320Wh

CPAP Overnight

Sleep therapy without interruption — the #1 medical use case

Either unit

A CPAP is about 40W for eight hours, so both of these cover the night several times over — capacity isn't the question here. What would separate them is fan noise, but Apex 200 + B500K doesn't publish a figure, so there's nothing to hold it to. Buy on price, weight, and whether you can live with a fan you haven't heard.

Battery budget usedlower = more headroom

LOAD  CPAP Machine 40W×8h

SCN-04 · 8 hours · needs 910Wh

Remote Workday

Full work day off-grid without power anxiety

Either unit

Both power your workstation all day without strain. At these utilization levels the real difference is USB-C for direct laptop charging — 140W on the Apex 200 + B500K against 100W — which beats the inverter for convenience and wastes less energy.

Battery budget usedlower = more headroom

LOAD  Laptop 60W×8h · External Monitor 30W×8h · Router + Modem 20W×8h · Phone Charger 15W×2h

SCN-05 · 4 hours · needs 670Wh

Tailgate Party

Game day power for the crew

Neither unit

Scoring these two at a tailgate is a category error: neither travels — the DELTA Pro Ultra is 181.8 lbs and the Apex 200 + B500K 158.7 lbs, and at those weights they roll off a truck bed if they go anywhere at all. The 670Wh here is trivial for either — it's the going that doesn't happen. If you need power away from the building, you're shopping the wrong class.

Battery budget usedlower = more headroom

LOAD  Blender 400W×0.5h · LED TV (55") 80W×4h · Bluetooth Speaker 15W×4h · Phone Charger (×3) 45W×2h

SCN-06 · 24 hours · needs 4,685Wh

Van Life Daily

A full day of mobile living — the ultimate endurance test

Apex 200 + B500K

Both carry a full day, with very different cushions. The DELTA Pro Ultra ends at 90% used with 537Wh left, one cloudy day from empty. The Apex 200 + B500K ends at 72% with 1,843Wh in hand.

RV & van-life power guide →

Battery budget usedlower = more headroom

LOAD  Mini-Fridge 150W×24h · Laptop 60W×4h · Phone Charger 15W×3h · LED Lights 40W×5h · Fan 75W×8h

The Load Test

RUNTIME = (Wh × 0.85) ÷ LOAD

None of the scenarios above exactly yours? Build it. Toggle what you'd plug in; both units are tested against the combined draw.

Essentials

Comfort & Convenience

High-Draw Appliances

Test duration

8h

Continuous draw

205W

Projected runtime

DELTA Pro Ultra25.5h
31% of usable battery in 8h
Apex 200 + B500K31.8h
25% of usable battery in 8h

For this load: Apex 200 + B500K runs 31.8h vs 25.5h.

Check Apex 200 + B500K price →

$2,799 list · direct from BLUETTI

Planning for more than this? Describe your whole setup and get it sized →

Modeled from the spec record — same math as the tables below. Methodology

Runtime by appliance

Real-world runtime estimates for common appliances, modeled at 85% inverter efficiency.¹

Essentials

The basics you need runningscale 0–435.2h
ApplianceDELTA Pro UltraApex 200 + B500K
CPAP Machine40W draw
DELTA Pro Ultra: 130.6h16 full nights
Apex 200 + B500K: 163.2h20 full nights
Phone Charger15W draw
DELTA Pro Ultra: 348.2h
Apex 200 + B500K: 435.2h
Router + Modem20W draw
DELTA Pro Ultra: 261.1h
Apex 200 + B500K: 326.4h
Starlink75W draw
DELTA Pro Ultra: 69.6h
Apex 200 + B500K: 87h
LED Lights (4 bulbs)40W draw
DELTA Pro Ultra: 130.6h
Apex 200 + B500K: 163.2h
Laptop (Working)60W draw
DELTA Pro Ultra: 87h
Apex 200 + B500K: 108.8h

Comfort & Convenience

Makes off-grid life actually enjoyablescale 0–87h
ApplianceDELTA Pro UltraApex 200 + B500K
Box Fan75W draw
DELTA Pro Ultra: 69.6h
Apex 200 + B500K: 87h
LED TV (55")80W draw
DELTA Pro Ultra: 65.3h
Apex 200 + B500K: 81.6h
Mini-Fridge150W draw
DELTA Pro Ultra: 34.8h
Apex 200 + B500K: 43.5h
Electric Blanket200W draw
DELTA Pro Ultra: 26.1h3 full nights
Apex 200 + B500K: 32.6h4 full nights

High-Draw Appliances

These reveal the real limitsscale 0–6.5h
ApplianceDELTA Pro UltraApex 200 + B500K
Coffee Maker1000W draw
DELTA Pro Ultra: 5.2h
Apex 200 + B500K: 6.5h
Microwave1200W draw
DELTA Pro Ultra: 4.4h
Apex 200 + B500K: 5.4h
Space Heater1500W draw
DELTA Pro Ultra: 3.5h
Apex 200 + B500K: 4.4h

¹ Runtime = (capacity × 0.85) ÷ appliance watts. Within each group, all bars share one time scale (the group's longest runtime), so lengths are comparable across appliances; identical runtimes collapse into a single blue/orange bar. Actual runtime varies with battery age, temperature, and simultaneous loads — see methodology.

Conclusion

November 4, 2026

Verdict: the Apex 200 + B500K

Buy the Apex 200 + B500K unless you need more than 3,600W at once or a 240V circuit. It holds 1,536Wh more, is rated for 6,000 cycles against 3,500, weighs 23 lb less in total and costs $1,400 less, which makes it far cheaper to own at $0.06 per lifetime kWh against $0.20. The DELTA Pro Ultra earns its premium with a 7,200W inverter, a 10,800W surge rating, 240V output and 5,600W of solar input. Those are real, and they matter for central air or a well pump. For a fridge, a freezer and the router, they sit idle.

Cost to ownApex 200 + B500K$0.06 vs $0.20 /lifetime-kWh
Cycle lifeApex 200 + B500K6,000 vs 3,500 cycles
Continuous outputDELTA Pro Ultra7,200W vs 3,600W
Typical priceApex 200 + B500K$2,799 vs $4,199
PortabilityApex 200 + B500K158.7 vs 181.8 lb
Solar inputDELTA Pro Ultra5,600W vs 3,000W
■■■■■■□□□□6/10

Editor-assigned confidence, based on cited owner research and spec analysis.

List prices as of November 4, 2026. The links below open EcoFlow's and BLUETTI's current prices.

Check Apex 200 + B500K price

$2,799.00 · direct from BLUETTI

or check the DELTA Pro Ultra price$4,199.00 list

Written by Gunner Gustafson, Whole-Home Backup Tester · Station Arena Test Desk · Updated November 4, 2026

04

Measured Data

Benchmark scores and the full spec record, side by side.

Benchmark scores

DELTA Pro UltraApex 200 + B500K
Overall Power Score
7,546
7,363
Home BackupCapacity & Resilience
7,780
7,639
Food TruckSustained Heavy Output
7,342
6,426

Full specifications

DELTA Pro Ultra
$4,199
Updated Nov 4
See live price →
Apex 200 + B500K
$2,799★ our pick
Updated Nov 4
See live price →
Capacity (Wh)
6144
7680
Output (W)
7200
3600
Surge Peak
10800W
Not Specified
AC Outlets
4
4
240V Outlets
1
0
30A RV Outlets
1
1

ᵈ Derived: price ÷ rated capacity. See the data behind our comparisons →

Comparison ToolAdd more power stations, side by sideOpen Tool →
How these numbers are produced

Numeric verification

Every figure on this page traces to our spec database or arithmetic on it — no estimated numbers.

Owner claims

Statements about owner experience are cited to published reviews — see Sources & Research Notes below.

Runtime model

Runtime = (rated capacity × 0.85 inverter efficiency) ÷ device wattage. Solar recharge estimates assume panels deliver 70% of rated output. Cold weather, battery age, and stacked loads reduce real-world results.

Power Score

Computed from 14 published spec dimensions, weighted per use-case bench. Higher is better; a unit must meet a bench's minimum threshold to be rated.

See the full weight table and data sourcing on our methodology page →

Class ranking (the star rating)

Each unit's star score is a category ranking, not customer reviews — no buyer opinions feed it. We score every station on size-independent quality (value, output, portability, endurance, ports, warranty, and more), then percentile-rank it against the other units in its capacity class, so a class-leading compact unit and a class-leading whole-home unit can both earn 5★. Here, DELTA Pro Ultra rates 4.9/5 (95th percentile of 22 Home Backup-class units), and Apex 200 + B500K rates 3.6/5 (18th percentile of 39 Whole-Home / Off-Grid-class units).

How the class ranking is computed →

Test Notes & Caveats

Hidden gotchas and advantages we spotted that you won't find on the product page.

[CAUTION]

Two Heavy Stacks

Neither is a single lift. The Apex 200 + B500K is 158.7 lb across the base unit and the battery it sits on, and the DELTA Pro Ultra is 181.8 lb across its boxes. That's 23 lb in the Apex's favour, and both move in more than one trip.

[NOTE]

UPS Switchover: 0ms-rated vs ≤15ms

Both list a UPS mode, at different rated speeds. The DELTA Pro Ultra is rated 0ms — a no-break design on paper, which is the maker's classification rather than a stopwatch result. The Apex 200 + B500K is rated ≤15ms — fine on paper for routers and most electronics; the fussiest PC power supplies sit right at this line. If a computer with unsaved work is the thing being protected, the stated class is worth the attention; nothing here is a lab result.

[NOTE]

Battery Lifespan in Real Years

The Apex 200 + B500K is rated for 6,000 cycles vs 3,500. In real life: at daily use, that's 16.4 vs 9.6 years. At weekend use (twice a week), it's 58 vs 34 years. After hitting the cycle limit, the battery doesn't die — it drops to ~80% of original capacity, which is still very usable.

[NOTE]

Apex 200 + B500K: Noise Level Not Disclosed

The DELTA Pro Ultra publishes its noise level (30dB); the Apex 200 + B500K doesn't publish one. That isn't evidence the Apex 200 + B500K is louder — it means there's no figure to hold it to, and no way to compare the two on this without hearing them. If you're buying for a bedroom, a CPAP, or an apartment, treat the DELTA Pro Ultra's 30dB as the only published number on the table — a spec-sheet figure, not a measurement — and look for hands-on reports of the Apex 200 + B500K before deciding.

Full record above — the Test Desk pick is the Apex 200 + B500K.

Check Apex 200 + B500K price →or check the DELTA Pro Ultra price
05

Ownership Analysis

What happens after you buy — true cost of ownership, brand trust, and growth potential.

Lifetime value

DELTA Pro UltraApex 200 + B500K

│ warranty ends · Reaching the cycle rating means ~80% capacity remains — degraded, not dead.

DELTA Pro Ultra
Apex 200 + B500K
Purchase price
$4,199.00
$2,799.00
Lifetime energy delivered
21,504 kWh
46,080 kWh
Cost per lifetime kWh
$0.20
$0.06
Cost per warranty year
$840/yr
Not published
Battery lifespan
9.6yr daily · 33.7yr weekends · 67.3yr weekly
16.4yr daily · 57.7yr weekends · 115.4yr weekly

Analyst note

The Apex 200 + B500K wins on both sticker price and long-term value. At $0.06/kWh over its lifetime, it's meaningfully cheaper to own. Clear value winner.

Delivers each lifetime kWh for $0.14 less — check the Apex 200 + B500K price →

Brand trust

EcoFlow

Ecosystem

Largest in portable power — 12-15 models across DELTA Pro, DELTA 3, and RIVER 3 series, plus solar panels and smart home panels

Support

US-based phone/email/chat support (1-800-368-8604). Experiences are polarized — many report hassle-free prepaid-label replacements, but others report long waits and refurbished units sent for new claims. Pro tip: buying from Costco or Amazon gives you a stronger return safety net.

Community

Largest community in the space — Reddit r/Ecoflow_community (~31K members), multiple Facebook groups, and an official community forum

App experience

Rated 4.6/5 iOS (~8,400 ratings) · 4.2/5 Android (~17,000 ratings)

Unique strength

Fastest-charging technology (X-Stream), deepest product ecosystem, and most active innovation cadence. At the top of the range sit two whole-home paths: the TITAN line, one 5 kWh unit that grows to 30 kWh, and the DELTA Pro Ultra platform, which stacks batteries and inverters further — flagship paths, not line-wide features.

Worth knowing

Tested subscription paywalls for advanced app features in early 2025 before community backlash paused the plan. No parts or service offered out of warranty.

All EcoFlow power stations tested →

BLUETTI

Ecosystem

One of the broadest lineups — 15-20+ models from budget (AC2A) to flagship portable (Apex 300, 2764.8Wh). Includes specialized products: vehicle solar hubs, sodium-ion cold-weather units, and balcony storage systems.

Support

The most inconsistent support in the space. Heavily email-based with China timezone delays. Some users get smooth, efficient service; others report weeks of troubleshooting runarounds, being offered discounts on new units instead of repairs, and confusing third-party purchase claim processes. Buying direct from Bluetti's website tends to produce better support outcomes.

Community

Active and growing — Reddit r/bluetti has a dedicated community. Second-largest after EcoFlow in engagement.

App experience

Rated 4.5/5 iOS and Android — tied for best app experience in the category. V3.0 UI redesign was well-received.

Unique strength

Among the best capacity-to-price ratios available — several Elite and Apex units are the lowest $/Wh in the catalog. Widest product diversity including industry-firsts like sodium-ion cold-weather units and dual solar+alternator vehicle hubs. LFP across the rest of the range, though rated cycle life spans 2,500 (EB3A) to 6,000, and it varies WITHIN the Elite range rather than tracking it — the Elite 300 and Elite 200 V2 are rated 6,000 while the Elite 30 V2, Elite 10 Mini, Elite 320 and Elite 400 are rated 3,000+ and the Elite 100 V2 4,000+, so check the specific model. Dual-voltage (120V/240V) in flagships.

Worth knowing

Customer support inconsistency is the #1 risk factor. Older/discontinued units may become unrepairable — no spare parts policy for some models. Some reports of erratic communication from support agents.

All BLUETTI power stations tested →

Analyst note

EcoFlow positions itself as a mid-to-premium brand with stronger support infrastructure, while BLUETTI competes on value. The question is whether the EcoFlow ecosystem and support premium is worth it for your use case.

Growth path

DELTA Pro Ultra

EXPANDABLE

Supports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 6,144Wh.

Accepts up to 5,600W of solar. Enough for a serious multi-panel array.

Adequate ports for most setups, but heavy users may want a power strip.

Expansion batteries are EcoFlow-specific. You're investing in the EcoFlow ecosystem.

Apex 200 + B500K

EXPANDABLE

Supports BLUETTI expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 7,680Wh.

Accepts up to 3,000W of solar. Enough for a serious multi-panel array.

Adequate ports for most setups, but heavy users may want a power strip.

Expansion batteries are BLUETTI-specific. You're investing in the BLUETTI ecosystem.

DELTA Pro UltraApex 200 + B500K

Analyst note

Both expand, but the DELTA Pro Ultra's higher solar ceiling (5,600W vs 3,000W) gives it the stronger off-grid growth path — more panels can feed a bigger bank as it grows.

06

What Owners Report

Patterns from published owner reports and long-term reviews — every claim cited to its source below.

EcoFlow DELTA Pro Ultra

Home Depot owner reviews describe quick setup, strong solar input and good app monitoring, and say the 7,200W inverter runs a 3-ton central ACA4. Most of the rest is EcoFlow's own claims and reviewer write-ups of them, including the online UPS and the fast chargingA1A3, so the field record is thinner than the brand's size would suggest.

“6,144Wh per battery with 7,200W continuous output (10.8kW surge), expandable to 90kWh across a system for a household — over 30 days of essential backup.”
— ecoflow.com / homedepot.com — DELTA Pro Ultra, 2026

Sources

ecoflow.com · homedepot.com · autoboosting.com · ecogadgethub.com

BLUETTI Apex 200 + B500K

There's no field record for the Apex 200 yet. Everything on its side comes from BLUETTI's page or our arithmetic on itB0. One BLUETTI figure needs caution: the 45-minute wall charge to 80% averages about 2,700W, more than a 15A outlet supplies, so plan on the 1.6 hours BLUETTI quotes from a 30A campground cableB6B7.

“2,560 Wh of LFP (lithium iron phosphate) cells, rated 6,000+ cycles to 70% of capacity. The badge on the unit in BLUETTI's own render reads 3600W | 2560Wh.”
— BLUETTI Apex 200 coming-soon page, bluettipower.com/pages/apex-200-expandable-power-station (read 2026-10-19, rechecked 2026-10-31) / Specification table on BLUETTI's Apex 200 page, published as an image (read 2026-10-19), 2026-10-19

Sources

bluettipower.com

Sources & Research Notes

Every owner claim in this report is traceable to a published source. The bracketed references above resolve here.

Recurring owner themes

  • Whole-home scale (to 90kWh), 7,200W output, online UPS, silent operation under load, and industry-fast charging are the standout features. [DELTA Pro Ultra · 2 entries]
  • No owner or reviewer reports exist yet: every entry is BLUETTI's own coming-soon page, spec table or store listing, or our own arithmetic on them. [Apex 200 + B500K · 22 entries]
  • A1

    “6,144Wh per battery with 7,200W continuous output (10.8kW surge), expandable to 90kWh across a system for a household — over 30 days of essential backup.”

    ecoflow.com / homedepot.com — DELTA Pro Ultra · 2026 · [positive]

  • A2

    “LFP chemistry rated for over 3,500 cycles to 80% (10+ years of use).”

    ecoflow.com / autoboosting.com — DELTA Pro Ultra review · 2026 · [positive]

  • A3

    “Industry-fast 8,800W charging tops up two batteries in about 2 hours; an online UPS protects sensitive electronics round the clock, and it runs at 0 dB (silent) for draws under 2,000W.”

    ecoflow.com / ecogadgethub.com — DELTA Pro Ultra review · 2026 · [positive]

  • A4

    “Owners call it a powerful, easy-to-use whole-home backup with quick setup, strong solar input, and good app monitoring; its 7,200W inverter can power a 3-ton central AC.”

    homedepot.com owner reviews — DELTA Pro Ultra · 2026 · [positive]

  • B1

    “2,560 Wh of LFP (lithium iron phosphate) cells, rated 6,000+ cycles to 70% of capacity. The badge on the unit in BLUETTI's own render reads 3600W | 2560Wh.”

    BLUETTI Apex 200 coming-soon page, bluettipower.com/pages/apex-200-expandable-power-station (read 2026-10-19, rechecked 2026-10-31) / Specification table on BLUETTI's Apex 200 page, published as an image (read 2026-10-19) · 2026-10-19 · [positive]

  • B2

    “AC output 3,200 W continuous on its own, 3,600 W once an expansion battery is attached. 120 V only; BLUETTI's FAQ sends buyers who need 120/240 V to the Apex 300.”

    BLUETTI Apex 200 coming-soon page, bluettipower.com/pages/apex-200-expandable-power-station (read 2026-10-19, rechecked 2026-10-31) · 2026-10-19 · [mixed]

  • B3

    “Outlets: three NEMA 5-20R household outlets (120 V, 20 A) and one TT-30R RV outlet (120 V, 30 A). Supported outlets can be switched and scheduled in the BLUETTI app.”

    Specification table on BLUETTI's Apex 200 page, published as an image (read 2026-10-19) / BLUETTI Apex 200 coming-soon page, bluettipower.com/pages/apex-200-expandable-power-station (read 2026-10-19, rechecked 2026-10-31) · 2026-10-19 · [mixed]

  • B4

    “DC: two USB-C (100 W and 140 W), two USB-A 15 W, a 12 V/10 A car outlet and a 12 V/30 A Anderson port, all on the base unit.”

    Specification table on BLUETTI's Apex 200 page, published as an image (read 2026-10-19) · 2026-10-19 · [positive]

  • B5

    “Solar input up to 3,000 W: 2,000 W through a high-voltage MC4 input accepting 60–280 V, plus 1,000 W through a low-voltage XT60 input. BLUETTI quotes about 50 minutes to 80% with both inputs at full output.”

    BLUETTI Apex 200 coming-soon page, bluettipower.com/pages/apex-200-expandable-power-station (read 2026-10-19, rechecked 2026-10-31) · 2026-10-19 · [positive]

  • B6

    “Wall charging: three modes (Silent, Standard, Turbo); Turbo is quoted at 45 minutes to 80%, with no starting charge stated. Campground charging to 100% in about 1.6 hours through a TT-30 or NEMA 14-50 charging cable.”

    BLUETTI Apex 200 coming-soon page, bluettipower.com/pages/apex-200-expandable-power-station (read 2026-10-19, rechecked 2026-10-31) · 2026-10-19 · [mixed]

  • B7

    “80% of 2,560 Wh is 2,048 Wh. Delivered in 45 minutes from empty that averages about 2,700 W, nearly twice what a 15 A, 120 V wall outlet supplies (1,440 W), and faster than BLUETTI's own 1.6 hours through a 30 A campground cable. Treat the 45 minutes as unconfirmed until BLUETTI says where it starts and what circuit it needs.”

    Power Station Arena arithmetic on BLUETTI's published figures (our reading, not a maker statement) · 2026-10-19 · [negative]

  • B8

    “Weight 59.5 lb (27 kg), two built-in handles, one each side; size 530 × 326 × 211 mm (20.9 × 12.8 × 8.3 in).”

    BLUETTI Apex 200 coming-soon page, bluettipower.com/pages/apex-200-expandable-power-station (read 2026-10-19, rechecked 2026-10-31) / Specification table on BLUETTI's Apex 200 page, published as an image (read 2026-10-19) · 2026-10-19 · [mixed]

  • B9

    “Expansion: up to six B300K or B500K batteries per unit, which BLUETTI puts at 33.28 kWh with six B500Ks (7.68 kWh with one). Two or three Apex 200 systems link through BLUETTI's Hub A1 for up to 6,000 W and 99.84 kWh.”

    BLUETTI Apex 200 coming-soon page, bluettipower.com/pages/apex-200-expandable-power-station (read 2026-10-19, rechecked 2026-10-31) · 2026-10-19 · [positive]

  • B15

    “3,600 W is exactly what a 30 A, 120 V RV outlet can pass (120 × 30). Alone, the Apex 200's 3,200 W stops 400 W short of a full TT-30 outlet, which shows only when two large loads (an RV air conditioner and a microwave, say) run together.”

    Power Station Arena arithmetic on BLUETTI's published figures (our reading, not a maker statement) · 2026-10-19 · [mixed]

  • B16

    “The Apex 300's solar inputs top out at 60 V, so an array a long cable run from the house either loses power in the cable or needs BLUETTI's $699 Solar X 4K. The Apex 200's 60–280 V high-voltage input takes the same panels wired for more volts and less current, in the base unit.”

    BLUETTI Apex 200 coming-soon page, bluettipower.com/pages/apex-200-expandable-power-station (read 2026-10-19, rechecked 2026-10-31) / BLUETTI Apex 300 specifications / Power Station Arena arithmetic on BLUETTI's published figures (our reading, not a maker statement) · 2026-10-31 · [positive]

  • B19

    “Operating pitch on BLUETTI's page: a fridge through an outage and an RV at the campsite from the same unit, with the same B300K and B500K batteries as the Apex 300 so later purchases carry over.”

    BLUETTI Apex 200 coming-soon page, bluettipower.com/pages/apex-200-expandable-power-station (read 2026-10-19, rechecked 2026-10-31) · 2026-10-19 · [positive]

  • B21

    “A B500K weighs about 99.2 lb by BLUETTI's Apex 300 bundle weights (bundle minus the 83.78 lb base). This system is two boxes: the 59.5 lb Apex 200 and one B500K stacked under it; the catalogue weight is the total, never one lift.”

    Power Station Arena arithmetic on BLUETTI's published figures (our reading, not a maker statement) (BLUETTI catalogue rows 59–63) · 2026-10-31 · [mixed]

  • B22

    “With an expansion battery attached the Apex 200's AC output rises from 3,200 W to 3,600 W, by BLUETTI's page.”

    BLUETTI Apex 200 coming-soon page, bluettipower.com/pages/apex-200-expandable-power-station (read 2026-10-19, rechecked 2026-10-31) · 2026-10-19 · [positive]

Research compiled November 4, 2026.

07

Who Should Buy Which

Buy the DELTA Pro Ultra if you…

  • →Your house has central air or a 240V well pump you mean to run through an outage, and you need the 7,200W inverter and 240V output to do itA4.
  • →You want the published numbers in hand today: a 5-year warranty, a 10,800W surge rating and an online UPSA3.

This is you — check the DELTA Pro Ultra price

Buy the Apex 200 + B500K if you…

  • →Your outage list is the fridge, the freezer, the router and the lights, and you'd rather have 1,536Wh more battery than an inverter you won't use.
  • →You own a travel trailer with a 30A inlet and want one battery for the RV and the houseB3B19.
  • →You cycle daily off solar and want the 6,000-cycle rating working for you.

This is you — check the Apex 200 + B500K price

If neither fits

If you're shopping for weekend camping, both of these are wrong. Each weighs more than 150 lb in total, and a one-box station you can lift into a trunk will serve you better.

08

The Bottom Line

The DELTA Pro Ultra's case is its inverter: 7,200W and 240V, for the house that has to keep central air or a well pump running. Everywhere else, the Apex 200 + B500K holds more, is rated to last longer and costs $1,400 less.

Unless that inverter is the reason you're shopping, get the Apex.

09

Frequently Asked Questions

Answers drawn from the spec record and cited owner research.

Is the BLUETTI Apex 200 + B500K better than the EcoFlow DELTA Pro Ultra?

For most homes, yes. It holds 7,680Wh against 6,144Wh, is rated for 6,000 cycles against 3,500 and costs $1,400 less. The DELTA Pro Ultra is the better choice if you need more than 3,600W or 240V output.

Can the Apex 200 + B500K run central air?

It's not the one to buy for it. Its 3,600W continuous output is half the DELTA Pro Ultra's 7,200W, BLUETTI hasn't published a surge figure, and it's 120V only, so a 240V system is out of reach. For central air, the DELTA Pro Ultra is the safer choice.

Which is lighter, the DELTA Pro Ultra or the Apex 200 + B500K?

The Apex system, at 158.7 lb in total against 181.8 lb, a 23 lb difference. Neither is a single lift: the Apex comes apart into a 59.5 lb base and a B500K of about 99.2 lb.

How many nights of outage does each one cover?

After the 8-Hour Blackout load of 1,645Wh, the Apex 200 + B500K has 4,883Wh left and the DELTA Pro Ultra 3,577Wh. Both have room for at least two more nights like it before they need a recharge.

Check Apex 200 + B500K price →

Where to buy

DELTA Pro Ultra

EcoFlow DELTA Pro Ultra

$4,199.00

Check current price

$4,199.00 · direct from EcoFlow

Last checked 31 days ago. Prices move — check before you buy.

Apex 200 + B500K

BLUETTI Apex 200 + B500KPick

$2,799.00

Check current price

$2,799.00 · direct from BLUETTI

Prices may vary by retailer and are subject to change.