Head-to-head test
BLUETTI AC240P vs BLUETTI Elite 400
The Elite 400 holds more than twice the energy and costs $63 less, which leaves the AC240P exactly one argument: it's the one you can leave out in the rain.
Full profiles: BLUETTI AC240P → · BLUETTI Elite 400 →
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
$1,461.99 · direct from BLUETTI
Last checked 1 day ago. Prices move — check before you buy.
$1,299.00 · direct from BLUETTI
down from $1,399 · 7% below usual
Last checked 1 day ago. Prices move — check before you buy.
Spec deltas
The cheaper of these two is also the bigger one. The Elite 400 lists at $1,399 with 3,840Wh; the AC240P lists at $1,462 with 1,843Wh. Same brand, same 15ms UPS switchover, same 100W USB-C port, and the box with more than twice the battery is the one that costs less.
That's an unusual amount of daylight for a same-brand matchup, and the AC240P doesn't close it anywhere on the spec sheet. It's rated for 3,500 cycles to the Elite's 3,000 and carries a 6-year warranty against 5, but a smaller battery cycled more times still delivers less energy in total: 6,451 kWh against 11,520. It accepts 1,200W of solar to the Elite's 1,000W, which means about an hour and a half of strong sun from empty at its rated ceiling against closer to four for the Elite. Faster only because there's less tank to fill.
Where the AC240P is genuinely alone is weather. It's IP65-sealed, it came through a six-hour rainstorm with a dry interior and a saltwater sailboat with no moisture intrusionA2, and at 72 lbs it's 13 lbs lighter to wrestle into a truck bed. Nothing on the Elite 400 answers that. Everyone else is buying the Elite 400.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
Capacity
So the AC240P doesn't finish a single 8-hour outage. It lands at 105% of what it can deliver, which is the cruelest kind of miss: you get almost all the way to morning. The Elite 400 walks through the same night at 50% with a second evening still in the tank, and it's the one that costs less to buy.
AC240P: 1,843Wh rated, $1,462Elite 400: 3,840Wh rated, $1,399Usable energy after inverter losses runs about 85% of ratedThe 8-hour blackout profile on this page draws 1,645Wh
Why it mattersIf storm season is why you're shopping, the comparison ends at the first blackout. Take the Elite 400.
Expandability only counts if the ceiling you expand to beats the rival's, and here the first expansion battery is spent buying back ground rather than gaining any. The AC240P doesn't hold an advantage until you've paid for the base unit, closed a 1,997Wh gap, and then kept going past 3,840Wh. That's a real path for someone building toward a whole-house bank. It's an expensive way to arrive at where the Elite 400 starts.
AC240P supports BLUETTI expansion batteries; Elite 400 is fixed at 3,840WhAC240P's base capacity is 1,843Wh, which is 1,997Wh below the Elite 400'sAC240P costs $1,462 before a single expansion battery is bought
Why it mattersPay more for the AC240P only if you already know your bank is heading past 3,840Wh. If the number in your head is smaller, expansion is a feature you'll buy and never use.
Fifteen decibels is not a rounding error in a dark bedroom. It's the gap between a fan you sleep through and a fan you lie there listening to, and it's the one place on this page where the smaller unit is worse at a job it can technically do. The Elite 400 is quieter and cheaper, so the medical-use buyer trades nothing to get it.
AC240P rated 45 dBA under load; Elite 400 rated 30 dBAA CPAP overnight draws about 320WhThat's 20% of the AC240P's usable energy and 10% of the Elite 400's
Why it mattersAnyone running a CPAP takes the Elite 400 and never thinks about capacity again.
weight
That's still a category the Elite 400 doesn't enter. A sealed box 13 lbs lighter that survives living in a truck bed, on a boat deck or in an open jobsite trailer is worth real money, even at $63 more and less than half the capacity, because the alternative is a unit you have to keep bringing indoors. It's the only argument on this page that price can't answer.
AC240P is IP65-rated; reviewers left it in a six-hour rainstorm and ran it through saltwater spray with no water getting insideA2The IP65 rating only holds with every port cover closed, and running cables through it compromises the sealA172 lbs against the Elite 400's 85 lbs
Why it mattersBuy the AC240P if the unit's permanent address is outdoors. If it lives in a garage between trips, this one isn't about you.
The specific dimensions that decide these two units — everything else is a tie.
Runtime: Will It Power Your Gear?
Selected because: The capacity gap runs the whole page: 1,843Wh against 3,840Wh, and the bigger battery is the cheaper one.
continuous output
Rated capacity isn't spendable capacity. Take the inverter's roughly 15% off the top and the AC240P has about 1,567Wh to actually hand you (1,843 x 0.85), while the Elite 400 has about 3,264Wh (3,840 x 0.85). Measured against the 1,645Wh this page assumes an 8-hour blackout draws, that's not quite one evening against very nearly two.
The output specs run the same direction. 2,400W continuous and 3,600W surge on the AC240P against 2,600W and 3,900W on the Elite 400. Neither gap decides anything by itself, and there's no load on this page that one starts and the other doesn't. But there's also no axis in here where the smaller, pricier unit is quietly ahead. If runtime is what you came for, this section is already the verdict.
Lifetime Value
Selected because: Twelve cents per lifetime kilowatt-hour against twenty-three, from the unit that also costs less to buy.
cost / lifetime kWh
Twelve cents against twenty-three, per kilowatt-hour, across every cycle these units will ever run. That's the Elite 400 delivering 11,520 kWh over 3,000 cycles for $1,399, and the AC240P delivering 6,451 kWh over 3,500 cycles for $1,462. More cycles, less energy. Lifetime output is capacity multiplied by cycles, and the AC240P wins only the multiplier that matters least.
The AC240P does take one column here and it deserves saying out loud. Its 6-year warranty against the Elite's 5 makes it the cheaper unit per covered year, $244 to $280, and at a cycle a day it reaches the end of its rated life around 9.6 years against the Elite's 8.2, so roughly 1.4 more years on the calendar. It spends those extra years handing you less than half the energy per charge. Calendar life is the wrong yardstick for a box you bought to deliver kilowatt-hours.
Your Life, Your Pick
Selected because: The AC240P runs dry mid-blackout at 105% of its usable energy; the Elite 400 finishes the same night at 50%.
The AC240P misses the two scenarios people actually buy these units for. A camping weekend wants 2,100Wh, which is 134% of what it can deliver, and an 8-hour blackout wants 1,645Wh, which is 105%. The blackout is the one that stings, because 105% means the unit does almost the whole job and then quits with the night not quite over.
The Elite 400 takes all five scenarios that have a winner, and takes them with room: 64% for the camping weekend, 50% for the blackout, 21% for a tailgate. The sixth, a 4,685Wh van-life day, goes to neither. The Elite lands at 144% of usable and the AC240P at 299%, and buying the closer miss is still buying a miss. If that's your daily number, shop stackable systems instead of choosing between these two.
Growth Path
Selected because: The AC240P's expansion port is its one structural card, and it starts 1,997Wh behind the Elite 400's fixed capacity.
solar input
Expandable reads like a free option and it isn't one here. The AC240P starts 1,997Wh below the Elite 400, so the first expansion battery goes toward catching up rather than growing, and you paid $63 more for the privilege of starting behind. The Elite 400 is sealed, which means what you buy is the ceiling: 3,840Wh, permanently.
That ceiling is a genuine limit and it's the one thing that should make you pause before buying our pick. But it's a ceiling already sitting more than double the rival's floor. Expansion earns its price only when the expanded system beats the alternative, and here that doesn't happen until you're past 3,840Wh, at which point you're a whole-home-backup buyer rather than someone choosing between two single boxes.
What the Specs Don't Tell You
Selected because: Weight, fan noise and a sealed battery are where each unit's honest catch lives, including our pick's.
rated cycles
Both of these are two-hands, bent-knees lifts. 72 lbs and 85 lbs are each well past the point where you carry a thing casually, and the 13 lbs between them shows up exactly where it's worst: stairs, a tailgate, a boat ladder. Reviewers note the Elite 400 ships with wheels and a trolleyB3, which makes flat ground a non-issue and a basement staircase no easier at all.
The other two cards are each unit's own honest catch. The AC240P is rated 45 dBA under load against the Elite's 30, which is the one spec here that reaches a person rather than an appliance. The Elite 400 is sealed at 3,840Wh with nowhere to grow, and reviewers flag its two AC sockets alongside the missing expansion as the compromises in an otherwise complete unitB4. Neither catch moves the verdict. Both are worth knowing before the box shows up.
Strengths & trade-offs
BLUETTI AC240P
Strengths
- +Lighter by 13 lb
- +Longer warranty
- +Faster solar charging
Trade-offs
- –No major technical downsides compared to rival.
BLUETTI Elite 400
Strengths
- +Costs $63 less
- +Larger battery capacity
- +Higher AC output
Trade-offs
- –Significantly heavier (+13 lbs), making it harder to move.
- –Very heavy unit that may be difficult for one person to lift.
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
Elite 400
A 2,100Wh weekend is 64% of the Elite 400's usable energy and 134% of the AC240P's, which is the polite way of saying the smaller unit goes flat before you pack up. Same brand, same weekend, and only one of them makes it home with charge left.
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
Elite 400
1,645Wh is 105% of what the AC240P can actually hand you, so it comes up short with the night not quite over. The Elite 400 spends 50% and holds a second evening in reserve. Both switch over in 15ms, so nothing in the house reboots either way. The only question is which one is still running at sunrise.
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
Elite 400
A CPAP asks for 320Wh, which is 10% of the Elite 400 and 20% of the AC240P, so capacity is beside the point and both units coast. What's left is the noise rating, 30 dBA against 45, and you're sleeping arm's length from it. The Elite 400 takes this one on sound, not on power.
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
Elite 400
The Elite 400 clears the workday at 28% used, banking 2,354Wh — late work, extra calls, or a second laptop charge without arithmetic. The AC240P at 58% also finishes, with 657Wh of slack for the unplanned.
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
Elite 400
Both handle game day; the Elite 400 keeps more in reserve (21% used vs 43%). Tailgating is a light load, though, so the number you'll feel is weight: 72 lbs for the AC240P against 85 lbs for the Elite 400, from the trunk to the setup spot.
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
Neither unit
4,685Wh a day beats both of them. The Elite 400 lands at 144% of usable and the AC240P at 299%, so neither is the answer and buying the closer miss is still a miss. A daily load this size wants a stackable multi-battery system, not the larger of two single boxes.
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
For this load: Elite 400 runs 15.9h vs 7.6h.
$1,399 list · direct from BLUETTI
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 0–217.6hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–43.5hHigh-Draw Appliances
These reveal the real limitsscale 0–3.3h¹ 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
August 2, 2026
Verdict: the Elite 400
Buy the Elite 400. It lists at $1,399 against the AC240P's $1,462, and the smaller number buys 3,840Wh instead of 1,843Wh, 2,600W of output instead of 2,400W, and a 30 dBA noise rating instead of 45. It takes every scenario on this page that has a winner, and it costs about half as much per kilowatt-hour it will ever deliver: $0.12 against $0.23. The AC240P has one real answer and it has nothing to do with price. It's an IP65-sealed box that reviewers left out in a six-hour rainstorm and ran on a saltwater sailboat without water getting insideA2, in a body 13 lbs lighter. If your power station's home is a truck bed or a boat deck, that's worth $63 and less than half the capacity. If it lives in a garage, nothing here justifies paying more for less.
Today the Elite 400 is $1,299, $100 under its typical $1,399. The verdict weighs typical prices, not today's. Prices checked 1 day ago.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of August 2, 2026. The links below open BLUETTI's current price.
$1,299.00 · direct from BLUETTI
down from $1,399 · 7% below usual
Last checked 1 day ago. Prices move — check before you buy.
or check the AC240P price$1,461.99 list
Written by Gunner Gustafson, Whole-Home Backup Tester · Station Arena Test Desk · Updated August 2, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): Tailgating.
Full specifications
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, AC240P rates 3.9/5 (35th percentile of 27 Everyday-class units), and Elite 400 rates 3.8/5 (27th percentile of 16 Home Backup-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.
72 lbs and 85 lbs, Both Two-Person Lifts
Neither of these is a one-hand carry. 72 lbs and 85 lbs both sit in the bent-knees, find-a-friend range, and the 13 lbs between them only announces itself where it's hardest: stairs, a tailgate, a boat ladder. The Elite 400 has a built-in trolley, which makes flat ground a non-issue and a staircase no easier. Decide where the unit is going to live before it arrives rather than after.
AC240P: the One You'll Hear
45 dBA under load against the Elite 400's 30 is the one spec on this page that reaches you rather than your appliances. In a garage it's irrelevant. In a bedroom, a nursery or a small camper with somebody asleep across the room, it's the whole decision. If the unit shares a room with a sleeping person, this is the number to buy on.
Elite 400: What You Buy Is the Ceiling
The Elite 400 is sealed at 3,840Wh. No expansion port, no second battery, no upgrade path short of buying another unit, and that's a real limit worth naming before you spend the money. It's also a ceiling sitting 1,997Wh above the AC240P's starting capacity, so the sealed unit only loses this argument to a buyer heading past 3,840Wh. Below that line, fixed just means finished.
Elite 400: Power Lifting to 3,900W
The Elite 400 has BLUETTI's Power Lifting mode, which runs a resistive appliance rated up to 3,900W from its 2,600W inverter. It does that by delivering less power than the appliance asks for, not more than the inverter has: the heater still works, it just heats more slowly. Two things follow. BLUETTI scopes the mode to purely resistive loads — a heater, a kettle, an incandescent lamp — so it does nothing for a fridge compressor, a pump or a power tool, and this record publishes no surge figure at all, so read the mode as a resistive-load feature rather than as starting ability. And it is not a reason to size down, because running a load that big from 3,840Wh is a short session either way. Genuinely useful if a heater or a kettle is why you're buying; beside the point otherwise. The AC240P publishes no equivalent.
Warranty: 6 Years vs 5
The AC240P is covered for 6 years against the Elite 400's 5 years. The Elite 400'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. An underrated factor if you're keeping this unit for years.
Full record above — the Test Desk pick is the Elite 400.
Check Elite 400 price →or check the AC240P priceOwnership Analysis
What happens after you buy — true cost of ownership, brand trust, and growth potential.
Lifetime value
Service lifeyears at one full cycle per day
Lifetime energy delivered
Cost per delivered kWh
│ warranty ends · Reaching the cycle rating means ~80% capacity remains — degraded, not dead.
Analyst note
The Elite 400 wins on both sticker price and long-term value. At $0.12/kWh over its lifetime, it's meaningfully cheaper to own. Clear value winner. One caution on the lifespan row: the AC240P takes longer to reach its cycle rating, but a cycle moves a different amount of energy on each unit — the Elite 400 still delivers more over its shorter horizon (11,520 vs 6,451 kWh). Years measure wear, not usefulness.
Delivers each lifetime kWh for $0.11 less — check the Elite 400 price →
Growth path
AC240P
EXPANDABLESupports BLUETTI expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 1,843Wh.
Accepts up to 1,200W 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.
Elite 400
FIXED CAPACITYFixed at 3,840Wh — a sealed, complete system rather than a starting point. There's no expansion port, so that figure is the ceiling: check it against your longest unplugged stretch before you buy.
Accepts up to 1,000W of solar. Enough for a serious multi-panel array.
Adequate ports for most setups, but heavy users may want a power strip.
Realistic full solar rechargeat 70% of rated panel output — see methodology
Analyst note
Don't read the AC240P's expandability as a straight win here: it starts at 1,843Wh, below the Elite 400's 3,840Wh, so a first expansion battery largely buys back capacity the Elite 400 already includes. It only pulls ahead if you'd grow past 3,840Wh — short of that, the Elite 400's larger fixed capacity is the simpler value.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
BLUETTI AC240P
The AC240P's field record is about weather, and it's a good one. Reviewers left it out through a six-hour rainstorm and watched water bead off with the interior bone dry, then ran it on a sailboat through constant saltwater spray with no moisture intrusion after a wipe-downA2. The caveat travels with the praise: the IP65 rating holds only when every port cover is closed, so the unit that survived the rain is not the unit sitting there with cables plugged into itA1.
Past weatherproofing the coverage is thin, and what exists comes from reviewers rather than long-term owners. It describes the premium end of BLUETTI's line, with LFP cells, a fast charge that reaches most of full quickly, and a large expansion ceilingA4, and notes that this is the higher-capacity AC240 variant, adding 307Wh over the standard model, with orange IP65 styling you can spot across a jobsiteA3.
“IP65 water- and dust-resistant, but the protection applies only when all port covers are closed; using it with cables plugged in compromises the rating, and it shouldn't be used in the rain that way.”
Sources
storagereview.com · backuppowerhub.com · makeuseof.com · techradar.com · fstoppers.com · bluettipower.com
BLUETTI Elite 400
Reviewers call the Elite 400 one of the most complete units at its tier and then immediately list what's missing. The praise is 3,840Wh of LFP, 3,900W of surge lifting, a 70-minute fast charge, 15ms UPS switchover and a built-in trolleyB2. The complaint is two AC sockets and no battery expansion, which they read as good but not quite as good as it could have beenB4.
On weight they call it hefty while noting it undercuts some competitors at this capacity, with wheels and a trolley doing most of the workB3. Field data here is reviewer-level rather than years of ownershipB1B2, so treat long-term durability as unproven on both sides of this page.
“BLUETTI's largest Elite-range unit — a 3,840Wh LiFePO4 battery with 2,600W continuous output (3,900W Power Lifting), fixed at native capacity with no expansion.”
Sources
techradar.com · amazon.com · backuppowerhub.com · cleantechnica.com · notebookcheck.net · thesolarlab.com · edinburghnews.scotsman.co
Sources & Research Notes
Every owner claim in this report is traceable to a published source. The bracketed references above resolve here.
Recurring owner themes
- IP65 ruggedness proven in rain and saltwater, big expandability, and fast charging are the praise; the caveat is that water resistance only holds with port covers closed. [AC240P · 3 entries]
- Large 3,840Wh LFP capacity, fast charging, 15ms UPS, and a trolley are the praise; only two AC sockets, no expansion, and heavy weight are the caveats. [Elite 400 · 2 entries]
- A1
“IP65 water- and dust-resistant, but the protection applies only when all port covers are closed; using it with cables plugged in compromises the rating, and it shouldn't be used in the rain that way.”
storagereview.com / backuppowerhub.com — BLUETTI AC240/AC240P review · 2026 · [mixed]
- A2
“Real-world weatherproofing held up — left outside in a 6-hour rainstorm, water beaded off and the interior stayed bone dry; used on a sailboat with constant saltwater spray, no moisture intrusion after wiping down the exterior.”
makeuseof.com / techradar.com — AC240/AC240P review · 2026 · [positive]
- A3
“The 1,843Wh AC240P is the higher-capacity option, adding 307Wh over the standard AC240, with distinctive orange IP65 branding; a solid choice if you need the extra capacity and prefer the more visible design.”
techradar.com / fstoppers.com — AC240P review · 2026 · [positive]
- A4
“Premium end of BLUETTI's lineup; LFP battery, a fast charge reaching most of full quickly, and expandable to a very large multi-kWh bank.”
bluettipower.com / techradar.com — AC240P specifications · 2026 · [positive]
- B1
“BLUETTI's largest Elite-range unit — a 3,840Wh LiFePO4 battery with 2,600W continuous output (3,900W Power Lifting), fixed at native capacity with no expansion.”
techradar.com / amazon.com — Elite 400 review · 2026 · [mixed]
- B2
“Combines 3,840Wh LFP capacity, 3,900W surge, 70-minute fast charging, 15ms UPS protection, and a built-in trolley system — one of the most complete units at the 3,000Wh+ tier in 2026.”
backuppowerhub.com / cleantechnica.com — Elite 400 review · 2026 · [positive]
- B3
“A hefty ~86 lbs (39 kg), though reviewers note it's lighter than some competitors, with wheels and a trolley for mobility.”
notebookcheck.net / thesolarlab.com — Elite 400 review · 2026 · [mixed]
- B4
“Powerful, but reviewers flag only two AC sockets and no battery expansion as compromises — good but not quite as good as it could have been.”
techradar.com / edinburghnews.scotsman.com — Elite 400 review · 2026 · [mixed]
Research compiled August 2, 2026.
Who Should Buy Which
Buy the AC240P if you…
- →Your power station's permanent address is outdoors: a truck bed, a boat deck, a jobsite trailer. The IP65 shell has been through a six-hour rainstorm and saltwater spray without letting water inA2, and the Elite 400 has no answer to it.
- →You already know your bank is heading past 3,840Wh. The expansion port is real, and if the plan is a multi-battery system rather than one box, starting on a platform that grows beats starting on one that can't.
- →You're the only person who will ever lift it and there are stairs involved. 72 lbs is a bad lift and 85 lbs is a worse one.
Buy the Elite 400 if you…
- →You're buying for outages. The Elite 400 clears an 8-hour blackout at 50% of its usable energy with a second evening still in reserve, and it does it for $1,399.
- →You camp on weekends. A 2,100Wh weekend is 64% of what the Elite can deliver and more than the AC240P has in it, which settles that.
- →Someone in the house runs a CPAP. A 320Wh night is a tenth of this battery, and the unit is rated 30 dBA against the AC240P's 45.
- →You came to find out whether the extra money buys anything. It doesn't. You'd be paying $63 for less than half the capacity.
If neither fits
If your real load is the 4,685Wh van-life day, neither of these covers it. The Elite lands at 144% of usable and the AC240P at 299%, and the honest answer is a stackable multi-battery system or proper split-phase home backup, not the larger of two boxes that both come up short. And if your worst night is genuinely the 320Wh CPAP run, you're shopping well above your load. That's a tenth of what the Elite 400 can deliver, and you'd be paying $1,399 for the nine tenths you'll never touch. Buy the size that matches the load and keep the difference.
The Bottom Line
Take the Elite 400. It's the cheaper unit at $1,399, and it's the one that finishes an 8-hour blackout at 50% while the AC240P runs dry at 105% of what it can deliver. Every scenario here with a winner goes the same way, and the lifetime math agrees: twelve cents a kilowatt-hour against twenty-three.
The AC240P keeps one thing, and to the right person it isn't a small thing. An IP65 shell that came through a six-hour rainstorm and saltwater spray dry insideA2, in a body 13 lbs lighter. If the box lives outdoors, pay the $63 and take the weather sealing. If it lives anywhere else, there's nothing on this page to buy.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the BLUETTI Elite 400 better than the AC240P?
Yes, unless the unit is going to live outdoors. It holds 3,840Wh to the AC240P's 1,843Wh, puts out 2,600W to 2,400W, carries a 30 dBA rating against 45, and lists at $1,399 against $1,462. The AC240P's counter is IP65 weather sealing and 13 fewer pounds, and both of those only matter if the box is stored or used in the weather.
Which one should I buy for a power outage?
The Elite 400. An 8-hour blackout profile draws 1,645Wh, which is 105% of what the AC240P can actually deliver after inverter losses and 50% of the Elite 400's. Both switch over in 15ms, so a desktop or a modem won't notice the handoff on either unit. The difference is entirely whether you make it to morning.
Can I expand the AC240P to match the Elite 400?
You can, but the arithmetic argues against it. The AC240P starts at 1,843Wh, so it needs 1,997Wh of add-on battery just to reach the Elite 400's stock 3,840Wh, and that's on top of a base unit that already costs $63 more. Expansion is worth paying for only if you'll go past 3,840Wh, and at that point you're building a system rather than choosing between these two.
Which is quieter for a bedroom?
The Elite 400, by its rating: 30 dBA against the AC240P's 45 dBA under load. At CPAP-sized draws, around 320Wh across a night and a tenth of the Elite's usable energy, neither unit is working hard, so noise is the only spec still in play. Fifteen decibels is a lot of difference in a dark room.
Is the AC240P waterproof?
It's IP65 rated, and reviewers have backed that up with six hours in a rainstorm and a dry interior, plus a saltwater sailboat with no moisture intrusion. The limit is that the rating depends on every port cover being closed. A unit sitting sealed on a boat deck is protected; a unit running with cables plugged into it is not, and shouldn't be left in the rain that way.
Where to buy
BLUETTI AC240P
$1,461.99
$1,461.99 · direct from BLUETTI
Last checked 1 day ago. Prices move — check before you buy.
BLUETTI Elite 400Pick
$1,299.00
$1,299.00 · direct from BLUETTI
down from $1,399 · 7% below usual
Last checked 1 day ago. Prices move — check before you buy.
Prices may vary by retailer and are subject to change.