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Head-to-head test

EcoFlow TITAN 5000 vs BLUETTI Apex 300 + B500K

Battery versus inverter: the Apex stores 2,867 Wh more, the TITAN 5000 carries 3,360 W more at once across a split-phase outlet, and only the battery shortfall is one you can fix later with a pack.

Full profiles: EcoFlow TITAN 5000 → · BLUETTI Apex 300 + B500K →

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
5,017.6Wh
7,884.8Wh
Output
7,200W
3,840W
Weight
119 lb
183 lb
Typical price
$3,199
$3,299
Cost / Wh
$0.64
$0.42
Solar input
4,000W
2,400W
01

The TITAN 5000 runs 7,200 W continuous at 120/240 V split-phaseA1. The BLUETTI Apex 300 + B500K runs 3,840 W. That's nearly twice the inverter, on the unit that costs $100 less.

The BLUETTI's answer is the tank: 7,884.8 Wh against the TITAN's 5,017.6 WhA6. Its record lists a 240 V outlet too, so both can reach a 240 V circuit. The real question is how much of the house each carries at the same moment, and how long each lasts once it's carrying it.

The TITAN takes the first question, and the first question is the one you can't fix later. A 240 V pump starting while the fridge, furnace blower and kitchen circuits already run is the hour an inverter runs out of room. A battery pack adds hours to either unit; it never adds watts.

02

What the Numbers Reveal

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

F1

continuous output

Backup loads don't wait their turn. When a 240 V well pump cycles on while the fridge and furnace blower are already running, the Apex's budget is where the squeeze happens, and the TITAN still has 3,360 W of room. More battery doesn't buy more watts on either unit.

TITAN 5000: 7,200 W continuous, 120/240 V split-phase at 30 AA1TITAN 5000 outlets: three 120 V 20 A sockets and one L14-30 twist-lock rated 120/240 V 30 AA2Apex 300 + B500K: 3,840 W continuous across six AC outlets and one 240 V outlet

Why it mattersIf your backup list includes a 240 V appliance on top of the usual kitchen loads, the TITAN 5000 is the one that runs them together.

F2

Capacity

That shortfall has a pack-shaped fix: one EF-TT-E5-G1 alongside the built-in pack makes two 5,017.6 Wh packs, 10,035.2 Wh, past the ApexA7. The Apex scales up by linking more Apex 300 units, and owners running several report them charging at different ratesB3 and rigging their own workarounds for solar chargingB4.

Apex 300 + B500K: 7,884.8 Wh; TITAN 5000: 5,017.6 WhA6TITAN 5000 expands to 30,105.6 Wh, six packs of 5,017.6 WhA7A heavy 4,685 Wh day: on the flat 85% derate the TITAN comes up 420 Wh short; the Apex clears it with 2,017 Wh spare

Why it mattersBuy the inverter your house needs on day one; battery is the part you can add when the budget catches up.

F3

solar input

That input is what makes the 30,105.6 Wh ceiling usable off-grid: at its rated 4,000 W, a fully expanded TITAN refills in about seven and a half hours of strong sun, one long summer day. Whatever bank the Apex grows into, its 2,400 W ceiling sets the pace of every refill.

TITAN 5000 solar input: 4,000 W max across 40–450 VA3Apex 300 + B500K solar input: 2,400 WTITAN 5000 ceiling: 30,105.6 WhA7

Why it mattersAnyone planning a big array and a big bank should count the TITAN's solar input as half of the expansion plan.

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

Your Life, Your Pick

Selected because: The blackout and heavy-day rows show exactly what the Apex's extra 2,867 Wh buys, and that none of them asks for anywhere near either inverter's limit.

Start with the row that favours the Apex, because it's the fair one. After the 8-Hour Blackout load, the Apex still has 5,057 Wh usable, 3.1 more nights like it; the TITAN has 2,620 Wh, or 1.6 nights. Neither inverter breaks a sweat on that load, so the TITAN's extra watts never get a turn.

That pattern holds down the table. No row asks for more than 400 W at once, about a tenth of the Apex's 3,840 W, so these scenarios measure quiet nights, where capacity wins and output idles. None of them is a well pump starting under a full kitchen, which is the hour the TITAN is built for.

Growth Path

Selected because: The TITAN's 30,105.6 Wh ceiling is on its label and its 4,000 W solar input outruns the Apex's 2,400 W; neither path adds inverter.

solar input

The TITAN's growth path is printed on its label: up to six identical 5,017.6 Wh packs for 30,105.6 WhA7, fed by a 40–450 V solar input rated 4,000 WA3. The Apex grows too, with BLUETTI batteries, but on a 2,400 W solar ceiling.

Neither path changes the inverter. Six packs on the TITAN still deliver 7,200 W; extra batteries on the Apex still feed a 3,840 W inverter. So expansion is a sequencing question, and the TITAN starts with the harder-to-change half already sized for a split-phase house.

Runtime: Will It Power Your Gear?

Selected because: Runtime is the Apex's strongest card: 7,884.8 Wh against 5,017.6 Wh stretches every load on the table by the same ratio.

continuous output

Every runtime on this table stretches by the same ratio on the Apex side, about 57% longer, because both units take the same flat derate against 7,884.8 Wh and 5,017.6 Wh. If your outage load is a fridge, the router and some lights, that's the number that matters, and the Apex owns it.

It stops mattering the moment a load needs more than 3,840 W. A battery that lasts longer can't start what its inverter can't carry, and on a 240 V house that moment arrives with the first big motor.

Brand Trust

Selected because: Both are sold as whole-home systems, which puts firmware and support on the critical path.

EcoFlow sells the TITAN 5000 bundled with its 240 V Smart Home Panel 10 and markets the line as whole-home backupA5, so you're judging half of an installed system. That makes firmware a household matter, and BLUETTI's Apex 300 threads are the cautionary read: one owner's update locked the unit in Backup modeB7, another's ended in an inverter-output errorB9.

Support is the other half. EcoFlow's is US-based with a phone line, though uneven in quality; BLUETTI's is mostly email on China hours and the least consistent in the category. On a machine tied into your breaker panel, a phone number beats an email queue.

Strengths & trade-offs

EcoFlow TITAN 5000

Strengths

  • +Costs $100 less
  • +Lighter by 64 lb
  • +Higher AC output
  • +Faster solar charging

Trade-offs

  • –Very heavy unit that may be difficult for one person to lift.
  • –Shorter-lived battery — rated for 0 charge cycles vs the Apex 300 + B500K's 6,000, so it wears out sooner.

BLUETTI Apex 300 + B500K

Strengths

  • +Larger battery capacity
  • +Rated for 6,000 charge cycles — much longer battery lifespan

Trade-offs

  • –Significantly heavier (+64 lbs), making it harder to move.
  • –Weaker inverter (-3,360W) 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 TITAN 5000 is 119 lbs and the Apex 300 + B500K 183 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

Apex 300 + B500K

Both survive the night. The Apex 300 + B500K finishes at 25% used with 5,057Wh left — 3.1 more nights like it. The TITAN 5000 finishes at 39% with 2,620Wh, 1.6 more nights like it. If your outages tend to run past one evening, that difference is the whole argument between them.

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

TITAN 5000

A CPAP is about 40W for eight hours, so both of these cover the night several times over — capacity isn't the question here, and the percentages are a formality. What matters is the box next to your pillow, and the only published difference is a rating: the TITAN 5000 is rated 39dB against the Apex 300 + B500K's 45dB. Each is the maker's own published rating, and the makers do not measure the same way, some quoting a best case and some a figure under load, so neither number describes a 40W draw and the two are not really comparable. Treat them as a reason to look for hands-on reports before either one goes next to a bed, not as a difference you can count on hearing.

CPAP battery backup guide →

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 — 100W on the Apex 300 + B500K against 60W — 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 TITAN 5000 is 119 lbs and the Apex 300 + B500K 183 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 300 + B500K

The TITAN 5000 doesn't finish — 4,265Wh usable against the 4,685Wh this needs leaves it 420Wh short, about 91% of the scenario covered (its nameplate 5,018Wh actually clears this — the flat 15% conversion allowance is what tips it under). The Apex 300 + B500K covers it with 2,017Wh to spare.

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

TITAN 500020.8h
38% of usable battery in 8h
Apex 300 + B500K32.7h
24% of usable battery in 8h

For this load: Apex 300 + B500K runs 32.7h vs 20.8h.

Check Apex 300 + B500K price →

$3,299 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 0–446.8h
ApplianceTITAN 5000Apex 300 + B500K
CPAP Machine40W draw
TITAN 5000: 106.6h13 full nights
Apex 300 + B500K: 167.6h20 full nights
Phone Charger15W draw
TITAN 5000: 284.3h
Apex 300 + B500K: 446.8h
Router + Modem20W draw
TITAN 5000: 213.2h
Apex 300 + B500K: 335.1h
Starlink75W draw
TITAN 5000: 56.9h
Apex 300 + B500K: 89.4h
LED Lights (4 bulbs)40W draw
TITAN 5000: 106.6h
Apex 300 + B500K: 167.6h
Laptop (Working)60W draw
TITAN 5000: 71.1h
Apex 300 + B500K: 111.7h

Comfort & Convenience

Makes off-grid life actually enjoyablescale 0–89.4h
ApplianceTITAN 5000Apex 300 + B500K
Box Fan75W draw
TITAN 5000: 56.9h
Apex 300 + B500K: 89.4h
LED TV (55")80W draw
TITAN 5000: 53.3h
Apex 300 + B500K: 83.8h
Mini-Fridge150W draw
TITAN 5000: 28.4h
Apex 300 + B500K: 44.7h
Electric Blanket200W draw
TITAN 5000: 21.3h2 full nights
Apex 300 + B500K: 33.5h4 full nights

High-Draw Appliances

These reveal the real limitsscale 0–6.7h
ApplianceTITAN 5000Apex 300 + B500K
Coffee Maker1000W draw
TITAN 5000: 4.3h
Apex 300 + B500K: 6.7h
Microwave1200W draw
TITAN 5000: 3.6h
Apex 300 + B500K: 5.6h
Space Heater1500W draw
TITAN 5000: 2.8h
Apex 300 + B500K: 4.5h

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

October 4, 2026

Verdict: the TITAN 5000

Buy the TITAN 5000. For $100 less it runs 7,200 W at 120/240 V split-phase through an L14-30 outletA1A2, 3,360 W more than the Apex's 3,840 W, and it takes 4,000 W of solar to the Apex's 2,400 WA3. The Apex's 7,884.8 Wh against 5,017.6 Wh buys real extra hours, but capacity is the gap you can close later with EcoFlow's extra packs, up to 30,105.6 WhA7; the inverter is the part you live with. The Apex is the better buy only for a house whose loads stay well under 3,840 W and whose outages run long without sun.

EcoFlow has not published this price yet. We priced the TITAN 5000 at $3,199 from EcoFlow's pre-launch store listing, so treat it as an estimate. We will update this comparison when the price is published.

Continuous outputTITAN 50007,200W vs 3,840W
Typical priceTITAN 5000$3,199 vs $3,299
PortabilityTITAN 5000119 vs 183 lb
Solar inputTITAN 50004,000W vs 2,400W
■■■■■■□□□□6/10

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

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

Check TITAN 5000 price

$3,199.00 (estimated) · check the store for today’s price

or check the Apex 300 + B500K price$3,499.00 list

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

Black Friday · 45 days out

Price to beat:Apex 300 + B500K $3,299

We have never seen it discounted, so any real cut would be a first.

Black Friday deals →
04

Measured Data

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

Benchmark scores

TITAN 5000Apex 300 + B500K
Overall Power Score
6,385
7,493
Home BackupCapacity & Resilience
6,270
7,857
Food TruckSustained Heavy Output
6,435
6,825

Not rated for both units (minimum threshold unmet): Solar Generator.

Full specifications

TITAN 5000
$3,199.00 (estimated)★ our pick
Updated Oct 4
See live price →
Apex 300 + B500K
$3,499
Updated Oct 4
See live price →
Capacity (Wh)
5017.6
7884.8
Output (W)
7200
3840
Surge Peak
Not Specified
7680W
AC Outlets
4
6
240V Outlets
1
1
30A RV Outlets
0
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, TITAN 5000 rates 4.6/5 (79th percentile of 20 Home Backup-class units), and Apex 300 + B500K rates 3.5/5 (11th percentile of 29 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]

Weight Reality Check

Neither unit is grab-and-go. The TITAN 5000 (119 lbs) is a two-person lift. The Apex 300 + B500K (183 lbs) is spread across its boxes — no single lift, but nothing you reposition on a whim. That's a 64 lb difference, and it is paid once — getting the heavier one into position, not every time you move it.

[NOTE]

Apex 300 + B500K: 45dB Published

45dB is about as loud as a running refrigerator. The TITAN 5000 is rated 39dB — lower, but published by a different maker measuring its own way, so the two figures are not a like-for-like gap. For most people, fan noise around 45dB and up is where sleep starts to suffer.

[NOTE]

UPS Switchover: ≤10ms vs ≤20ms

Both list a UPS mode, at different rated speeds. The Apex 300 + B500K is rated ≤10ms — quick enough on paper that desktop PCs and routers should ride through, treating that as the rating it is. The TITAN 5000 is rated ≤20ms — 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]

Warranty: No Difference

Both units carry the same 5-year warranty, so coverage isn't a tiebreaker here. The Apex 300 + B500K's figure is a maximum rather than a guarantee — it depends on buying direct from BLUETTI or registering the unit, since reseller purchases carry a shorter term.

Full record above — the Test Desk pick is the TITAN 5000.

Check TITAN 5000 price →or check the Apex 300 + B500K price
05

Ownership Analysis

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

Lifetime value

TITAN 5000Apex 300 + B500K

│ warranty ends · Reaching the cycle rating means ~80% capacity remains — degraded, not dead. est. = no published cycle rating; the brand’s average is used instead.

TITAN 5000
Apex 300 + B500K
Purchase price
$3,199.00 (estimated)
$3,499.00
Lifetime energy delivered
17,060 kWh est.
47,309 kWh
Cost per lifetime kWh
$0.19 est.
$0.07
Cost per warranty year
$640/yr
$660/yr
Battery lifespan
9.3yr daily · 32.7yr weekends · 65.4yr weekly est.
16.4yr daily · 57.7yr weekends · 115.4yr weekly

Analyst note

The TITAN 5000 has no published cycle rating, so its lifetime rows use the average of the 28 LiFePO4 units EcoFlow does rate: about 3,400 cycles. That's a fair baseline for the brand but not a rating for this unit, so cost to own isn't scored on it. Judge these two on price, capacity and warranty, and read the rows marked "est." as a ballpark.

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

A whole-home unit eventually throws a question the manual doesn't answer, and community size is the first support line: EcoFlow's Reddit community runs to roughly 31K members alongside an official forum, and BLUETTI's r/bluetti is the second most engaged in the space. Both are big enough that someone has usually hit your problem first.

Growth path

TITAN 5000

EXPANDABLE

Supports EcoFlow expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 5,018Wh.

Accepts up to 4,000W 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 EcoFlow-specific. You're investing in the EcoFlow ecosystem.

Apex 300 + B500K

EXPANDABLE

Supports BLUETTI expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 7,885Wh.

Accepts up to 2,400W of solar. Enough for a serious multi-panel array.

Generous port selection supports complex multi-device setups.

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

TITAN 5000Apex 300 + B500K

Analyst note

Both expand, but the TITAN 5000's higher solar ceiling (4,000W vs 2,400W) 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 TITAN 5000

What we have on the TITAN 5000 is EcoFlow's own documentation and our reading of itA0. The rating label sets 7,200 W at 120/240 V split-phaseA1 through an L14-30 outletA2, 4,000 W of solar inputA3, a 5,017.6 Wh packA6 that scales to 30,105.6 WhA7, and a second AC port that passes up to 7,200 W through in bypassA14. Our arithmetic on the 204.8 V pack points to LFP cellsA12.

“7,200 W continuous output with 120/240 V split-phase at 30 A.”
— EcoFlow rating label (regulatory filing), model EF-TT-5-G1, 2026-07-20

BLUETTI Apex 300 + B500K

The BLUETTI side has real field reports, with a caveat our research is blunt about: almost none confirm this exact B500K pairing, most describe the bare Apex 300 or its B300K bundle, and none cover six months of ownershipB0.

The thread that matters most here is multi-unit, since linking more Apex 300s is how owners scale this system up. One owner reports linked units charging from the grid at different ratesB3; another rigged a workaround for solar charging across several and reports no problems sinceB4; a third has a stack of Apex 300s reporting into Home Assistant after an outageB10. Separately, reviewers consistently describe the fans as tame for the classB1B2.

“Turns out the Apex 300's noise control is on par with the quietest power stations on the market, like those on offer from EcoFlow and DJI.”
— The Solar Lab — "Bluetti Apex 300 Review: Cheap, Practical Home Backup?", unknown

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

  • No owner or reviewer reports exist yet: every entry is EcoFlow's own rating label or store page, plus two of our own readings of the label. [TITAN 5000 · 14 entries]
  • Multiple independent reviewers describe the dual-fan cooling as noticeably quiet/even for a unit of this output class, even under load. [Apex 300 + B500K · 3 entries]
  • Firmware and app updates have repeatedly caused mode-lock, download failures, or inverter error codes; several threads show the issue eventually resolved after further updates or support contact. [Apex 300 + B500K · 4 entries]
  • When running multiple Apex 300 units or expansion batteries in parallel, owners report uneven charge rates between units, with community-devised (unofficial) workarounds needed to keep them in sync. [Apex 300 + B500K · 2 entries]
  • The stripped-down, modular design draws criticism for real-world handling: extreme weight makes it hard to move, and lack of native USB/DC ports forces reliance on a separate paid hub accessory. [Apex 300 + B500K · 2 entries]
  • A1

    “7,200 W continuous output with 120/240 V split-phase at 30 A.”

    EcoFlow rating label (regulatory filing), model EF-TT-5-G1 · 2026-07-20 · [positive]

  • A2

    “Outlets on the unit: three 120 V 20 A sockets (NEMA 5-20R) and one L14-30 twist-lock marked 120V/240V 30A; the markings match the rating label.”

    EcoFlow US store page / EcoFlow rating label (regulatory filing), model EF-TT-5-G1 · 2026-07-20 · [positive]

  • A3

    “Solar MPPT 40–450 V, 16 A, 4,000 W max; PV short-circuit current 20 A max; PV DC AFCI Type 1.”

    EcoFlow rating label (regulatory filing), model EF-TT-5-G1 · 2026-07-20 · [positive]

  • A5

    “Sold in bundles with EcoFlow's 240 V Smart Home Panel 10, solar panels or the extra battery — EcoFlow markets the line as "Whole-Home Backup Power".”

    EcoFlow US store page · 2026-07-20 · [mixed]

  • A6

    “5,017.6 Wh pack rated 204.8 V and 24.5 Ah — the same pack on all three TITAN 5000 models.”

    EcoFlow rating label (regulatory filing), model EF-TT-5-G1 · 2026-07-20 · [positive]

  • A7

    “Expandable to 30,105.6 Wh, exactly six packs, using EcoFlow's EF-TT-E5-G1 extra battery, each matching the base unit's 5,017.6 Wh.”

    EcoFlow rating label (regulatory filing), model EF-TT-5-G1 · 2026-07-20 · [positive]

  • A12

    “The 204.8 V pack is exactly 64 cells at 3.2 V, and the extra-battery port's 172.8–230.4 V window is exactly 64 × 2.7 V to 64 × 3.6 V — the working range of lithium iron phosphate (LFP) cells.”

    Power Station Arena analysis of EcoFlow's rating labels (our arithmetic, not a maker statement) · 2026-07-20 · [positive]

  • A14

    “A second AC port, marked AC Power IN/OUT, takes 120/240 V split-phase (or 208Y/120 V) input at up to 30 A, and in bypass mode passes up to 7,200 W through to the outlets at 120/240 V, 30 A.”

    EcoFlow rating label, model EF-TT-5-G1 · 2026-07-20 · [positive]

  • A15

    “UL 9540 certified and tested to UL 9540A, with EV-grade LFP cells and 24/7 BMS monitoring; EcoFlow calls these North America's highest safety standards for residential storage.”

    EcoFlow US store launch page, TITAN 5000 (2026-10-13) · 2026-10-13 · [positive]

  • A16

    “Sold with EcoFlow's Smart Home Panel 10: factory pre-wired ('no custom field wiring needed') with app control of 10 household circuits; Smart Home Panel 10 installation is listed as 'coming soon'.”

    EcoFlow US store launch page, TITAN 5000 (2026-10-13) · 2026-10-13 · [positive]

  • A17

    “OASIS 3.0: learns household energy habits, forecasts solar up to 3 days ahead, charges off-peak and uses stored energy on-peak. The store marks these features '×Subscription feature in the EcoFlow app.'”

    EcoFlow US store launch page, TITAN 5000 (2026-10-13) · 2026-10-13 · [mixed]

  • A23

    “X-Fusion 2.0: solar powers the home first, then charges TITAN for after dark; at peak rates TITAN runs the home on stored energy, and working with the grid through the main panel it can power loads beyond the backed-up circuits.”

    EcoFlow US store launch page, TITAN 5000 (2026-10-13) · 2026-10-13 · [positive]

  • B1

    “Turns out the Apex 300's noise control is on par with the quietest power stations on the market, like those on offer from EcoFlow and DJI.”

    The Solar Lab — "Bluetti Apex 300 Review: Cheap, Practical Home Backup?" · unknown · [positive]

  • B2

    “Some units sound like small jet engines under load, but the Apex 300's fans are relatively tame.”

    Techspective — "Bluetti Apex 300 with B300K Review" · 2025-09 · [positive]

  • B3

    “The Apex 300 have some major charging problems... When the units are charging from the grid they charge at different rates and not together.”

    DIY Solar Power Forum — "Bluetti Apex 300 problems" · 2025-09 · [negative]

  • B4

    “I have found a simple way to get around some of the solar charging limitations with multiple APEX 300s hooked up in parallel... So far, I have not had any problems with my setup.”

    DIY Solar Power Forum — "Bluetti Apex 300 problems" · 2025-09 · [mixed]

  • B7

    “I updated my Apex 300 to the latest firmware yesterday. Now it's stuck in 'Backup' mode... when I go into the app to try to change it back, it flashes to...”

    BLUETTI Community — "Apex 300 stuck in Backup mode after last firmware update" · 2025-11 · [negative]

  • B9

    “After the update completed, the charging stopped and I received Error 004... I have error E004 Inverter Output Failure.”

    BLUETTI Community — "Error E004 Apex 300" · 2025-11 · [negative]

  • B10

    “I had a power outage in the middle of the night, so I hooked everything (Hub A1 and all 300's) back up and now HA is populating. YEA!!!”

    GitHub bluetti-official/bluetti-home-assistant — "APEX 300 and Hub A1 now working" (Issue #95) · 2026-05 · [mixed]

Research compiled October 4, 2026.

07

Who Should Buy Which

Buy the TITAN 5000 if you…

  • →The house with a 240 V well pump and a full kitchen that both need to run when the grid drops: 7,200 W split-phaseA1 carries them together.
  • →The buyer who wants EcoFlow's 240 V Smart Home Panel 10 bundleA5 and a path to 30,105.6 Wh, one pack at a timeA7.
  • →The homeowner with a big roof array, since the 40–450 V input takes 4,000 WA3.
  • →A time-of-use-rate home that wants solar to power the house first and the battery to cover peak-rate hours: EcoFlow's X-Fusion 2.0 does thisA23, and OASIS 3.0 adds forecasting as a subscriptionA17.

This is you — check the TITAN 5000 price

Buy the Apex 300 + B500K if you…

  • →The household whose outage list is a fridge, a router, lights and a sump pump, nowhere near 3,840 W at once, and who wants the most hours per charge.
  • →The rural home where outages run for days under cloud cover, and a bigger tank matters more than peak watts.
  • →Anyone who wants six AC outlets on the unit itself rather than three 20 A sockets and a twist-lockA2.

This is you — check the Apex 300 + B500K price

If neither fits

The house that wants central air, an electric range and a dryer running through a long outage is asking more of an inverter than either of these offers; that's a job for a standby generator or a permanently installed home battery system.

08

The Bottom Line

Nearly twice the inverter for $100 less: the TITAN 5000 runs 7,200 W split-phase where the Apex runs 3,840 W, and the Apex's real lead, its bigger battery, is the one gap you can close later with a pack.

If your house runs light and your outages run long, the Apex is the better buy. If a 240 V pump and the kitchen have to run at the same time, get the TITAN 5000 and add battery when you're ready.

09

Frequently Asked Questions

Answers drawn from the spec record and cited owner research.

Is the EcoFlow TITAN 5000 better than the BLUETTI Apex 300 + B500K for whole-home backup?

For a house with 240 V loads, yes. It runs 7,200 W split-phase against the Apex's 3,840 W and costs $100 less. The Apex holds 2,867 Wh more, so it's the better pick when your loads are light and long runtime is the priority.

Does the BLUETTI Apex 300 + B500K have 240V output?

Its record lists one 240 V outlet, so it can reach a 240 V circuit. The limit is power: everything it runs, 240 V included, shares one 3,840 W continuous budget. The TITAN 5000's L14-30 outlet is rated 120/240 V at 30 A, enough for its full 7,200 W.

Can you add batteries to the EcoFlow TITAN 5000?

Yes. EcoFlow's EF-TT-E5-G1 extra battery matches the built-in 5,017.6 Wh pack, and the system tops out at six packs in all, 30,105.6 Wh. Extra packs extend runtime; the 7,200 W output stays where it is.

How much longer does the Apex 300 + B500K run than the TITAN 5000?

About 57% longer on any given load, because it holds 7,884.8 Wh to the TITAN's 5,017.6 Wh. On an 8-hour blackout load, the TITAN finishes with 2,620 Wh usable and the Apex with 5,057 Wh.

What does the TITAN 5000 add beyond the spec sheet?

EcoFlow lists the TITAN 5000 as UL 9540 certified and tested to UL 9540A. The TITAN 5000 ships with a factory pre-wired Smart Home Panel 10 that controls 10 circuits from the app. EcoFlow's X-Fusion 2.0 has solar power the home first and the battery cover peak-rate hours. OASIS 3.0 learns household habits, forecasts solar up to 3 days ahead and charges off-peak, but the store marks it as a subscription feature in the EcoFlow app.

Check TITAN 5000 price →

Where to buy

TITAN 5000

EcoFlow TITAN 5000Pick

$3,199.00 (estimated)

Check current price

$3,199.00 (estimated) · check the store for today’s price

Apex 300 + B500K

BLUETTI Apex 300 + B500K

$3,499.00

Check current price

$3,499.00 · direct from BLUETTI

Last checked 28 days ago. Prices move — check before you buy.

Prices may vary by retailer and are subject to change.