Head-to-head test
BLUETTI AC240P vs BLUETTI Apex 300 + B300K
Decide one thing first, does this battery move or stay put, because everything else follows from it: the AC240P you carry into the rain, the Apex 300 + B300K you roll into a corner once and never lift again.
Full profiles: BLUETTI AC240P → · BLUETTI Apex 300 + B300K →
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
$1,461.99 · direct from BLUETTI
Last checked 8 hours ago. Prices move — check before you buy.
$2,599.00 · direct from BLUETTI
Last checked 8 hours ago. Prices move — check before you buy.
Spec deltas
These two BLUETTI batteries share a logo and little else. The AC240P is a 72-lb rugged box you haul to a campsite and leave out in the rain; the Apex 300 + B300K is 148.8 lbs of stationary home battery you roll into a corner once and forget. Putting them head to head is really putting two different jobs head to head.
If the battery stays put, the bigger one is also the better value, which catches people off guard. The Apex holds three times the AC240P's energy, 5,530Wh to 1,843Wh, for 91% more money, and both run the same at-least-3,500-cycle LFP packs, so the larger bank spreads its price across far more lifetime energy. Per kilowatt-hour delivered, it undercuts the smaller unit.
Energy you can't carry to the tailgate, though, isn't energy you bought. The AC240P moves and the Apex effectively doesn't, and only the AC240P is rated IP65 for the rain and spray the Apex was never built to faceA1A2. So this isn't a which-is-better verdict. It's a which-shape-fits-your-life one, and you can settle it before the spec table finishes loading.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
weight
So the AC240P takes the Tailgate outright, covering the day with 897Wh in reserve, and it's the only one of the two you can run outdoors in the rain, IP65-rated where the Apex is indoor-onlyA1A2. What a portable owes you is deliverable capacity, not nameplate capacity.
AC240P: 72 lbs, IP65-rated; Apex 300 + B300K: 148.8 lbs, stationaryTailgate: the Apex uses only 14% of its bank, yet the AC240P wins by default and covers the day with 897Wh to spareThe Apex holds three times the energy, 5,530Wh vs 1,843Wh
Why it mattersIf the battery ever leaves the house, the AC240P is the only real option here; the Apex's extra energy is capacity you can't reach.
Typical price
You pay 91% more and get 200% more energy, which is why the cost per lifetime kilowatt-hour flips the sticker order and leaves the Apex the cheaper battery to actually use, not the pricier one.
Apex: $2,599 for 5,530Wh; AC240P: $1,462 for 1,843WhBoth rated for at least 3,500 cyclesTotal lifetime energy: 19,354 kWh vs 6,451 kWh
Why it mattersThe buyer who'll keep the capacity loaded, for home backup or a van base, should stop treating the Apex as the splurge; per watt-hour it's the budget pick.
continuous output
Reviewers actually ran a full washing machine and a heat-pump dryer off the ApexB9B10, exactly the surge-prone appliances the 1.5x AC240P is least certain to start. For whole-kitchen backup or power tools, the Apex's inverter is the safer bet, not just the bigger one.
Apex: 7,680W surge over 3,840W continuous (2x ratio)AC240P: 3,600W surge over 2,400W continuous (1.5x ratio)Reviewers ran a washer (100% to 65% in an hour) and a heat-pump dryer off the ApexB9B10
Why it mattersIf the plan is to back up a fridge-and-microwave kitchen or run tools, lean Apex; the AC240P is built for electronics and lighter loads.
The specific dimensions that decide these two units — everything else is a tie.
Portability & Form Factor
Selected because: 72 lbs against 148.8, plus an IP65 shell versus a stay-put brick, is the difference that decides this pair before any other spec.
weight
Start with the number you'll feel in your back: 72 lbs against 148.8. The AC240P is a heavy but genuine solo lift, awkward up basement stairs and fine into a truck bed. The Apex 300 + B300K is a two-person maneuver or a trolley job, and once it's placed it stays placed. Reviewers who moved it said the same, that it has handles but nobody is casually carrying 148.8 lbs to a picnicB5B14.
The AC240P also goes where the Apex can't, which is outside. It carries an IP65 rating, and reviewers left it out in a six-hour rainstorm and ran it through constant saltwater spray on a sailboat with no water intrusion, as long as every port cover stays shutA1A2. The Apex is an indoor, under-cover machine. If your use involves weather at all, that settles it: the AC240P is the only one of the two you can point at the sky.
Your Life, Your Pick
Selected because: The same six use cases split cleanly, the AC240P taking anything you carry and the Apex anything that stays home, which is the whole decision in one table.
The six use cases sort themselves along the move-or-stay line almost perfectly. The Tailgate goes to the AC240P, and not because the Apex lacks energy, since it uses only 14% of its bank on the day. It loses because it can't get to the parking lot, and capacity that stays home powers nothing in a lot. Everything stationary and hungry goes the other way. The 8-hour blackout, the remote workday, and van-life daily draw all land with the Apex, which finishes each with thousands of watt-hours in reserve while the AC240P either squeaks past or runs dry.
Two are worth reading closely. Weekend Camping is a loss for both: the Apex has the 2,100Wh but can't travel, and the AC240P covers only about 75% of it before tapping out. The 8-hour blackout is closer than the win column suggests. The AC240P's 1,843Wh nameplate actually clears the 1,645Wh load; it's the flat 15% conversion derate every unit here gets that leaves it 78Wh short on paper. Trim one small appliance from the day and it finishes. The Apex clears the same night with roughly 3,000Wh to spare and never has to do the math.
Lifetime Value
Selected because: The Apex holds three times the energy for 91% more money, so cost per kilowatt-hour, not sticker price, is the honest way to read the gap.
cost / lifetime kWh
The sticker gap is $1,137, so the Apex costs 91% more. The energy gap is far wider: three times the capacity, and because both packs carry the same at-least-3,500-cycle rating, three times the total lifetime energy, 19,354 kWh against the AC240P's 6,451. You pay 91% more and get 200% more energy over the life of the box. That's why the cost per kilowatt-hour runs opposite to the sticker.
One honest wrinkle cuts the other way. By warranty year the AC240P is the cheaper unit, $244 a year against $560, because it's a smaller box with a year more coverage. That figure is real, but it prices the warranty, not the energy. If you're buying watt-hours, the Apex is the value; if you're buying the smallest box that can do the job, the AC240P is.
What the Specs Don't Tell You
Selected because: Surge headroom, warranty term, and UPS speed each tilt a different direction, so which one matters depends on what you plug in.
rated cycles
Three gotchas point three different directions. Surge favors the Apex, which doubles its continuous rating into a 7,680W peak, a 2x ratio, where the AC240P allows 3,600W over 2,400W, a 1.5x ratio. Fridges, washers, and AC compressors spike to two or three times their running draw at startup, so the Apex is the surer bet to start them, and reviewers ran a full washer and a heat-pump dryer off it without dramaB9B10. Warranty favors the AC240P, barely, at up to 6 years against the Apex's 5, with registration. UPS switchover splits on paper, the Apex rated no worse than 10ms and the AC240P no worse than 15ms.
None of that is a lab result, and the UPS line matters least of the three. Both figures are rated ceilings rather than clocked measurements, and routers and desktops ride through either. The switchover gap only earns a second look if you're guarding a fussy PC power supply with unsaved work on it, and even then you're weighing the stated class, not a stopwatch. Fan noise doesn't enter the decision at all, since both are rated around 45 dBA, a difference you would never hear.
Growth Path
Selected because: Both expand, but the Apex takes twice the solar, 2,400W against 1,200W, which decides the off-grid, recharge-daily buyer.
solar input
Both take BLUETTI expansion batteries, so neither one boxes you in, but the Apex grows better where growth matters. It accepts 2,400W of solar to the AC240P's 1,200W, so its three-times-larger bank isn't three times slower to refill from panels. Twice the intake against triple the capacity keeps the recharge window inside a solar day either way. For an off-grid setup that drains and refills daily, that's the line between keeping pace with the sun and chasing it, and it's why van-life reviewers treat the Apex as a base station you build on rather than a fixed ceilingB13.
Strengths & trade-offs
BLUETTI AC240P
Strengths
- +Costs $1,137 less
- +Lighter by 76.8 lb
- +Longer warranty
Trade-offs
- –Weaker inverter (-1,440W) limits appliance compatibility.
- –Shorter-lived battery — rated for 3,500 charge cycles vs the Apex 300 + B300K's 6,000, so it wears out sooner.
BLUETTI Apex 300 + B300K
Strengths
- +Larger battery capacity
- +Higher AC output
- +Faster solar charging
- +Rated for 6,000 charge cycles — much longer battery lifespan
Trade-offs
- –Substantially more expensive (+$1,137) than the AC240P.
- –Significantly heavier (+76.8 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
Neither unit
Neither gives you a powered weekend: the Apex 300 + B300K has the energy but doesn't travel, and the AC240P covers about 75% of the 2,100Wh. One can't go; the other can't finish.
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 + B300K
The AC240P comes up just short — it needs 1,645Wh and has 1,567Wh usable, a 78Wh gap (its nameplate 1,843Wh actually clears this — the flat 15% conversion allowance is what tips it under). Trim that much — one small appliance's worth across the day — and it finishes. The Apex 300 + B300K covers it outright with 3,055Wh to spare.
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 sips about 40W, so both units run it for many nights on a single charge. The AC240P uses 20% of its bank across the night and the Apex just 7%, which makes the capacity contest a formality. Both are rated around 45 dBA, so noise doesn't separate them either. What separates them is everything around the bed: the AC240P is lighter, smaller, and cheaper to park on a nightstand, and no one needs a 148.8-lb home battery to run a breathing machine.
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
Apex 300 + B300K
The Apex 300 + B300K clears the workday at 19% used, banking 3,790Wh — 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
AC240P
The Apex 300 + B300K at 148.8 lbs is not a take-along — it rolls off a truck bed if it travels at all, so this scenario belongs to the AC240P by default — and it earns it, covering the 670Wh with 897Wh to spare. Capacity was never the Apex 300 + B300K's problem here; getting to a tailgate was.
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 + B300K
The Apex covers a full van day of 4,685Wh, but only just, with 15Wh to spare. That's a rounding error, not a cushion, so plan to recharge hard the next day or add a B300K pack, because there's no slack in this number. The AC240P covers only about a third of the same day, so for full-time van draw it's simply the wrong size.
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: Apex 300 + B300K runs 22.9h vs 7.6h.
$2,599 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 0–313.3hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–62.7hHigh-Draw Appliances
These reveal the real limitsscale 0–4.7h¹ 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 30, 2026
Verdict: the Apex 300 + B300K, on Power Score margin
They tie only because they're different tools, not because they're matched at the same job. If the battery leaves the house, for camping, tailgates, a jobsite, or a rainy boat deck, take the AC240P: 72 lbs you can actually move and an IP65 shell rated to shrug off weatherA2. If it stays put, for home backup, a van base station, or a fridge and more through a long outage, the Apex 300 + B300K wins clearly, giving three times the usable energy at $0.14 per lifetime kilowatt-hour against the AC240P's $0.23, plus a stronger inverter for surge-prone loads. Answer whether it moves and the box picks itself.
Editor-assigned confidence, based on cited owner research and spec analysis.
Written by Gunner Gustafson, Whole-Home Backup Tester · Station Arena Test Desk · Updated August 30, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): UPS, RV Living, 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 Apex 300 + B300K rates 4.4/5 (67th 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.
Weight Reality Check
Neither unit is grab-and-go. The AC240P (72 lbs) is manageable solo but heavier than a large checked suitcase. The Apex 300 + B300K (148.8 lbs) is spread across its boxes — no single lift, but nothing you reposition on a whim. That's a 77 lb difference, and it is paid once — getting the heavier one into position, not every time you move it.
Fan Noise: Line Ball
Both units are rated at the same 45dB — like a running refrigerator. One published figure, twice, so noise shouldn't decide this one.
Surge Power: Inverter Quality Indicator
The Apex 300 + B300K has a 2× surge-to-continuous ratio vs the AC240P's 1.5×, and the higher absolute ceiling with it — 7,680W against 3,600W. At 2× it clears the 2× rule of thumb for absorbing motor startups — fridges, AC compressors and power tools briefly draw 2-3× their rated wattage. What decides whether a given motor starts is the ceiling, not the ratio: the AC240P still surges to 3,600W, so check the startup draw of the heaviest thing you plan to run against that figure rather than assuming it trips.
UPS Switchover: ≤10ms vs ≤15ms
Both list a UPS mode, at different rated speeds. The Apex 300 + B300K is rated ≤10ms — quick enough on paper that desktop PCs and routers should ride through, treating that as the rating it is. The AC240P 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.
Warranty: 6 Years vs 5
The AC240P is covered for 6 years against the Apex 300 + B300K's 5 years. The Apex 300 + B300K'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.
Battery Lifespan in Real Years
The Apex 300 + B300K 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. One caution reading years across different sizes: a cycle is 5,530Wh on the Apex 300 + B300K and 1,843Wh on the AC240P, so count lifetime energy — roughly 33,178 kWh against 6,451 kWh over the rated life. After hitting the cycle limit, the battery doesn't die — it drops to ~80% of original capacity, which is still very usable.
Ownership 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 AC240P is cheaper to buy, but the Apex 300 + B300K is cheaper to own. At $0.08/kWh over its lifetime vs $0.23/kWh, the Apex 300 + B300K's higher cycle life and capacity make each dollar go further over the years.
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.
Apex 300 + B300K
EXPANDABLESupports BLUETTI expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 5,530Wh.
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.
Realistic full solar rechargeat 70% of rated panel output — see methodology
Analyst note
Both expand, but the Apex 300 + B300K's higher solar ceiling (2,400W vs 1,200W) gives it the stronger off-grid growth path — more panels can feed a bigger bank as it grows.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
BLUETTI AC240P
Field reports on the AC240P circle one theme: the ruggedness is real. One reviewer left it out in a six-hour rainstorm and watched the water bead off with the interior bone dry; another ran it on a sailboat through constant saltwater spray and found no moisture inside after a wipe-downA2. The catch travels with the rating: IP65 only holds with every port cover closed, so plug a cable in and run it in the rain and you've broken the sealA1. Beyond the weatherproofing, reviewers place it at the premium end of BLUETTI's line, with LFP chemistry, fast charging, and genuine expandabilityA4. The orange body is the higher-capacity sibling of the standard AC240, 307Wh up on itA3.
“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 Apex 300 + B300K
The Apex 300 + B300K is new enough that there's no long-term owner record yet. The field data is professional reviewer test units from late 2025 into 2026 rather than six-month forum threads, so read it as early impressions, not a durability verdictB0. Within that limit, reviewers agree on two things. It behaves like a generator replacement: one ran a full washing machine that pulled the pack from 100% to 65% in an hour, then a heat-pump dryer that took it down to 20%, and separately clocked it recharging in under an hourB4B9B10B12. And the base Apex 300 is port-poor, with no USB or DC outputs past its AC sockets, so you either add the roughly $300 D1 hub or go without, and one reviewer pulled a measly 8W from the B300K's USBB1B2B6. For a stationary AC-backup box that's a footnote; if you wanted fast USB-C at the unit, it's a real miss.
“The Apex 300 doesn't have USB ports, DC ports, or much of anything beyond its six AC plugs and high-voltage connectors.”
Sources
thesolarlab.com · techspective.net · digitalreviews.net · thesolarpit.com · cleantechnica.com · trustedreviews.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
- 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]
- Reviewers consistently flag that the base Apex 300 has no USB/DC ports and requires a separate paid Hub D1 accessory, which some feel is overpriced for what it offers. [Apex 300 + B300K · 3 entries]
- Multiple sources note the extreme weight/bulk of the stacked Apex 300 + B300K system, making 'portable' a stretch despite handles/trolley options. [Apex 300 + B300K · 2 entries]
- Reviewers praise fast recharge and the system's ability to genuinely replace a generator for home backup and heavy loads like washers/dryers. [Apex 300 + B300K · 4 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
“The Apex 300 doesn't have USB ports, DC ports, or much of anything beyond its six AC plugs and high-voltage connectors.”
thesolarlab.com — Bluetti Apex 300 Review: Cheap, Practical Home Backup? · unknown (2025/2026) · [mixed]
- B2
“That Bluetti D1 Power Hub that gives you your DC and USB ports costs about $300, which is a steep price for what you're getting.”
thesolarlab.com — Bluetti Apex 300 Review: Cheap, Practical Home Backup? · unknown (2025/2026) · [negative]
- B4
“It's one of the few systems I've tested that feels like it could genuinely replace a generator, without the noise, fumes, or maintenance.”
techspective.net — Bluetti Apex 300 with B300K Review · 2025-09-21 · [positive]
- B5
“Stacked, you're near 150 pounds of lithium iron phosphate and inverter muscle—movable with the built-in handles or a trolley... but not something you'll casually lug to a picnic.”
techspective.net — Bluetti Apex 300 with B300K Review · 2025-09-21 · [mixed]
- B6
“I just wonder why Bluetti did not include a USB-C port with some decent output, like 100 or 140W as I only got a measly 8W charge out of it for my phone.”
digitalreviews.net — Bluetti B300K Expansion Battery Review · 2025-12 · [negative]
- B9
“Results: 1 wash took about 1 hour and drained the Apex from 100% down to 65%.”
digitalreviews.net — Bluetti Apex 300 Power Station Tests (Australia) Part II · 2025-09 · [positive]
- B10
“Just for fun we then turned on our heat pump dryer to see that over 1½ hours it would further drain it down to 20%.”
digitalreviews.net — Bluetti Apex 300 Power Station Tests (Australia) Part II · 2025-09 · [mixed]
- B12
“During my testing, the recharge speed was astonishing. In under an hour, I had a system ready to go again.”
thesolarpit.com — Bluetti Apex 300 Review · 2025-10-28 · [positive]
- B13
“For van lifers, the Apex 300 is a great base station, and the ability to add another 2.7kWh of capacity by simply purchasing another B300K expansion pack is a game-changer.”
cleantechnica.com — The Bluetti Apex 300 & B300K Portable Power Station Tested · 2025-08-05 · [positive]
- B14
“As will you: it weighs in at 38kg, and is probably much too big and heavy for most people to carry alone.”
trustedreviews.com — Bluetti Apex 300 Review · 2025-10-10 · [negative]
Research compiled August 30, 2026.
Who Should Buy Which
Buy the AC240P if you…
- →You camp, tailgate, or work a jobsite and the battery comes along: 72 lbs you can wrestle into a truck bed beats 148.8 lbs you can't.
- →You need power outdoors in weather. The IP65 shell handles rain and coastal spray with the port covers shutA1A2, which the Apex was never built for.
- →Your loads are electronics, lights, a small fridge, and CPAP nights. 1,843Wh covers them, and the Apex's extra capacity would just sit home unused.
- →You want the longer safety net and the smaller upfront check: up to 6 years of coverage against the Apex's 5.
Buy the Apex 300 + B300K if you…
- →You're backing up a house or building a van base station that lives in one spot. 148.8 lbs costs you nothing when the battery never leaves it.
- →You run heavy, surge-prone loads: a washer, a dryer, a full fridge, power tools. The 7,680W peak and 2x surge headroom start what the AC240P's 1.5x might stall onB9B10.
- →You want the most energy per dollar over the long haul: three times the capacity for 91% more money, and a 2,400W solar ceiling that keeps refill time inside a solar day instead of tripling it.
- →Your needs may climb. Start at 5,530Wh and stack B300K packs onto a solar setup big enough to actually feed themB13.
If neither fits
If you want a grab-and-go battery for quick trips, the kind you lift with one hand and toss in the back seat, both of these are too much box. Look at a cooler-sized unit a fraction of this weight, like a smaller BLUETTI in the AC70 or Elite class. And if what you actually want is whole-home standby power that switches on automatically at the breaker panel, neither portable is that. You want a permanently installed system with a transfer switch.
The Bottom Line
Decide whether the battery moves and you've decided the battery. If it leaves the house, for campsites, tailgates, or a rain-soaked boat deck, the AC240P is the only real answer here: 72 lbs you can lift and an IP65 shell you can point straight at the weatherA2. If it stays home and works, running backup, a van base, or a fridge and more through a long outage, the Apex 300 + B300K gives you more energy for less per kilowatt-hour and the stronger inverter besides.
The trap is reading the Apex as the expensive one. It's the bigger check and the cheaper energy at once: pay 91% more, get three times the capacity over the same 3,500-cycle rating. The question was never which BLUETTI is better. It's whether your power needs to travel, and once you answer that honestly, the box is already chosen.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the Apex 300 + B300K just a bigger AC240P?
No, they're different classes of machine. The Apex bundle is a 5,530Wh stationary home battery weighing 148.8 lbs; the AC240P is a 1,843Wh rugged portable at 72 lbs, rated IP65 for outdoor use. The Apex has more energy and a stronger inverter, but it doesn't travel and isn't weatherproof. Choose by whether the battery needs to move.
Which one is cheaper to run over time?
The Apex, and by a wide margin per unit of energy. It works out to $0.14 per lifetime kilowatt-hour against the AC240P's $0.23, because its three-times-larger bank runs the same 3,500-cycle rating and spreads the price across far more energy. The AC240P is only cheaper in the sense that its upfront cost is smaller, $1,462 against $2,599.
Can the AC240P back up my house during an outage?
For electronics, lights, and a fridge it mostly can, but it's sized right at the edge. In an 8-hour blackout drawing 1,645Wh it lands about 78Wh short once conversion losses are counted, so trimming one small appliance gets you through the night. The Apex clears the same outage with roughly 3,000Wh to spare and starts heavy appliances more reliably.
Is the Apex 300 too heavy for one person to move?
For practical purposes, yes. Stacked with the B300K it's about 148.8 lbs, built with handles and available with a trolley, but reviewers agree it's not a solo carry and not something you bring to a picnic. Treat it as a place-it-once home unit. If you need to relocate a battery regularly, the 72-lb AC240P is the one.
Does the base Apex 300 have USB ports?
Barely. The base unit's outputs are its AC sockets, with no real USB or DC ports until you add the roughly $300 D1 hub, and one reviewer measured just 8W from the B300K's USB. If USB-C fast charging at the unit matters to you, the AC240P's 100W USB-C is the simpler answer.
Where to buy
BLUETTI AC240P
$1,461.99
$1,461.99 · direct from BLUETTI
Last checked 8 hours ago. Prices move — check before you buy.
BLUETTI Apex 300 + B300K
$2,599.00
$2,599.00 · direct from BLUETTI
Last checked 8 hours ago. Prices move — check before you buy.
Prices may vary by retailer and are subject to change.