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BLUETTI · Apex series

BLUETTI Apex 300 + B300K

5.5 kilowatt-hours at 149 pounds stacked: the Apex 300 with one B300K clears every scene we run, the van day to the last watt-hour, nothing left for the reading lamp. It wins 22 of 33 head-to-heads. No owner has written in; reviewers say it replaces a generator, then the hub you still buy for a USB port.

5.5 kWh · 3,840 W · 148.8 lb · 6,000 cycles · 33 head-to-heads

6,286

Power Score · The AC & Fridge Zone

BLUETTI Apex 300 + B300K
5.5 kWh
capacity
3,840 W
output
148.8 lb
weight
6,000
rated cycles

Should you buy it right now?

Fair price today: $2,599 is what it normally sells for. The store shows $2,899; the discount comes off automatically and you pay $2,599. It clears 6 of 6 real-world jobs and wins 22 of 33 matchups.

Gunner Gustafson

Verdicts by Gunner Gustafson and the Test Desk·Figures computed 2026-09-07

01 · Six real-world jobs

What the Apex 300 + B300K actually runs

The load profiles every comparison on the site is scored on, computed for this unit alone: energy needed against the usable tank after inverter losses, and whether the inverter holds and starts the biggest single load.

  • Weekend Camping

    Clears it

    2 nights · Two nights off-grid with essential comfort

    2,100Wh needed · 45% of the tank · 2,600Wh spare

    Peak 75W: starts and holds

  • 8-Hour Blackout

    Clears it

    8 hours · Keep the essentials running through a night without power

    1,645Wh needed · 35% of the tank · 3,055Wh spare

    Peak 150W: starts and holds

  • CPAP Overnight

    Clears it

    8 hours · Sleep therapy without interruption — the #1 medical use case

    320Wh needed · 7% of the tank · 4,380Wh spare

    Peak 40W: starts and holds

  • Remote Workday

    Clears it

    8 hours · Full work day off-grid without power anxiety

    910Wh needed · 19% of the tank · 3,790Wh spare

    Peak 60W: starts and holds

  • Tailgate Party

    Clears it

    4 hours · Game day power for the crew

    670Wh needed · 14% of the tank · 4,030Wh spare

    Peak 400W: starts and holds

  • Van Life Daily

    Clears it

    24 hours · A full day of mobile living — the ultimate endurance test

    4,685Wh needed · 100% of the tank · 15Wh spare

    Peak 150W: starts and holds

02 · Head-to-head record

22 wins in 33 written matchups

Every matchup is a full verdict scored on the six jobs above plus price, longevity and portability. This is the set shoppers search for, not a random sample.

03 · From the verdicts

Who it is for, and when a rival won instead

Each line is lifted from a written matchup where it decided the verdict, and links to the page it came from. Repeated across many matchups means it is the unit’s signature, not one author’s opinion.

Buy the Apex 300 + B300K if…

  • You want the lowest entry price into the Apex 300 platform — $2,599 for 5,529.6Wh.

    Decided 9 matchups · read one →

  • Your daily draw regularly approaches or exceeds about 4,000Wh, like a full van-life day, where the DELTA Pro physically runs out mid-task.

    Decided 3 matchups · read one →

  • You want more capacity for less money — 489.6Wh more for $900 less than the Explorer 5000 Plus.

    Decided 3 matchups · read one →

  • You're backing up a bedroom, office, or anywhere noise matters overnight — 45dB is a genuine 15dB quieter than the DELTA Pro's 60dB rating.

    Decided 3 matchups · read one →

A rival won when…

  • You want the longest coverage available on a device you can't unbox and ship back: 10 years against 5.

    Decided 11 matchups · read one →

  • You want one box, not two — a single 112.4 lb unit instead of a stacked 148.8 lb system.

    Decided 3 matchups · read one →

  • You need something you can actually carry solo and set up without a cart — 77.2 lbs against the Apex's 148.8.

    Decided 2 matchups · read one →

  • You want a proven home-backup platform under $1,500 that already runs LFP cells rated for over a decade of daily use [A3].

    Decided 2 matchups · read one →

04 · Price history

What the Apex 300 + B300K actually sells for

The number on the buy button, read twice a day, one point per day. Never the sticker, never a “was” price.

Read from bluettipower.com twice a day since July 17 · 53 days

At its usual price

Carried on 51% of days tracked · dips reach $2,599

Built from the Sep 7, 5 AM UTC read.

$2,599

Usual price

51% of days tracked

$2,599

Best we've seen

September 7

$2,599

Today

at usual

$2,999

Highest seen

26 days above usual

How to read this

  • Usual is the price the unit carried most of the time, tested for how long it held rather than how often we looked. A weekend promotion cannot move it.
  • Best is the lowest price we have read on the store itself. Typed coupon codes, member-only prices and marketplace listings are not counted; anything applied automatically at checkout is.
  • A gap in the line is a day we could not read a price. We never draw across one, and we never show the store’s own “was” price.

Method on the methodology page.

Share the numbers

BLUETTI Apex 300 + B300K: usually $2,599, best $2,599 (Sep 7), today $2,599 on bluettipower.com. Tracked twice a day since Jul 17. https://stationarena.com/products/bluetti-apex-300-b300k#price-history

Alerts for the Apex 300 + B300K

One email when it drops below $2,599, comes back in stock, or a newer model in this line appears. Nothing else.

By subscribing, you agree to our Privacy Policy.

05 · Voices

What owners and reviewers say

Owner reports are paraphrased from public YouTube comments and each links to its source; reviewer consensus is counted from cited excerpts, never quoted; our own verdicts are quoted. Specs on this page never come from any of them.

Reviewer consensus

5/14 positive excerpts, 6 sources

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.

thesolarlab.com · techspective.net · digitalreviews.net · thesolarpit.com · cleantechnica.com · trustedreviews.com · researched 2026-07-15

From the test desk

  • Buy the Apex 300 + B300K if your daily draw looks like Van Life Daily's 4,685Wh — it's the only one of the two that gets through that day, using right around all of its usable capacity while the Elite 300 would need 183%…

  • Both are the identical Apex 300 base — 3,840W continuous, 7,680W surge, 3,500 cycles, 2,400W of solar, a 10ms switchover — with only the battery changing.

  • Buy the solo Apex 300 unless you already know you need the extra capacity.

06 · Where each number comes from

Spec sheet, in four cards

Every field carries its source: green is the manufacturer’s own document, blue was adjudicated after sources disagreed, grey is the catalogue as imported. Then compare it line by line with the units people actually weigh it against.

Battery

5529.6

Capacity (Wh)

  • ChemistryLiFePO4
  • Charging Cycles6000+
  • Battery Expansion FeasibilityYes

Power out

3840

Output (W)

  • Surge Peak7680W
  • AC Outlets6
  • 240V Outlets1
  • 30A RV Outlets1
  • 12V Car Outlets0
  • USB-C Ports2
  • USB-A Ports2
  • USB-C Charging Outputs100W

Charging

2400

Solar Input (W)

  • Solar Input TypeMC4

Living with it

148.8

Weight (lbs)

  • Noise Level (db)45
  • UPSYes (<10ms)
  • App ControlYes
  • Warranty (Years)5

Compare it with

Apex 300 + B300K vs

leads on 5 · trails on 2

SpecApex 300 + B300KElite 300Gap
Usual price$2,599$1,199+$1,400
Capacity (Wh)5529.63014.4+2515.2
Output (W)38402400+1440
Surge (W)7680W4800W+2880
Rated cycles6000+60000
Solar input (W)24001200+1200
Weight (lb)148.858.0+90.8
Noise (dB)45Not Specified
AC outlets62+4
USB-C ports220
Warranty (yr)550
ChemistryLiFePO4LiFePO4
UPSYes (<10ms)Yes (≤10ms)

● marks the better figure where direction is clear. Price is each unit’s usual price.

Read the full verdict →

07 · BLUETTI Apex line

Where it sits in the line

Capacity bars are to scale across the line; prices are each unit’s usual price, not today’s.

  1. BLUETTI Apex 300

    Apex 300

    2.8 kWh · $1,699

  2. BLUETTI Apex 300 + B300K

    Apex 300 + B300K

    5.5 kWh · $2,599

  3. BLUETTI Apex 300 + B500K

    Apex 300 + B500K

    7.9 kWh · $3,299

  4. BLUETTI Apex 300 + 2*B300K

    Apex 300 + 2×B300K

    8.3 kWh · $3,699

  5. BLUETTI Apex 300 + 2*B500K

    Apex 300 + 2×B500K

    13 kWh · $5,399

08 · At its usual price

Cost of ownership

Cycle life is the manufacturer’s rating to 80% capacity; the lifetime figure is that rating times the nameplate capacity.

$0.47

per Wh

at $2,599

$0.08

per lifetime kWh

33,178 kWh over 6,000 cycles

16.4 yr

if cycled daily

58 yr at weekends only

5 yr

warranty

$520 per covered year

09 · From the matchups

Questions people ask

Can the Apex 300 + B300K actually get through a full day of van life?

Yes. Van Life Daily's 4,685Wh draw uses right around all of the Apex 300 + B300K's usable capacity, which is enough to cover it with the numbers as tested. The Elite 300 can't make the same claim here: the identical load would need 183% of what it actually holds, meaning it runs out with real hours of the day still left.

From bluetti apex 300 b300k vs bluetti elite 300

Does the Apex 300 + B300K come with USB and DC charging ports out of the box?

Not really. Reviewers report the base Apex 300 ships with six AC outlets and high-voltage connectors but no USB or DC ports at all [A1], and getting them means buying BLUETTI's separate Hub D1 accessory [A2]. Budget for that as part of the real purchase, not an optional add-on.

From bluetti apex 300 b300k vs bluetti elite 300

Which BLUETTI unit is cheaper to own over time, the Apex 300 + B300K or the Elite 300?

The Elite 300, clearly. It costs $0.07 per lifetime kilowatt-hour against the Apex 300 + B300K's $0.13, and its 5-year warranty works out to $240 a year of coverage against $520. The Apex 300 + B300K's higher price buys more capacity, not a better-built battery.

From bluetti apex 300 b300k vs bluetti elite 300

Can the BLUETTI Apex 300 + B300K run a central air conditioner like the DELTA Pro Ultra?

Not the same way. The Apex 300 + B300K tops out at 3,840W continuous output, while the DELTA Pro Ultra runs 7,200W continuous and 10,800W surge — enough headroom that Home Depot reviewers specifically confirm it holds a 3-ton central AC compressor [A4]. A large single compressor load is the clearest reason to pick the Pro Ultra over the Apex.

From ecoflow delta pro ultra vs bluetti apex 300 b300k

Is the DELTA Pro Ultra worth $1,500 more than the Apex 300 + B300K?

It depends on the load and the warranty math you care about. The Apex is cheaper per lifetime kWh ($0.13 vs $0.19), but the Pro Ultra is cheaper per warranty-year ($410 vs $520) because its coverage runs twice as long. If you need the true 0ms UPS or the larger inverter, the premium buys something real; if not, the Apex delivers most of the capability for less.

From ecoflow delta pro ultra vs bluetti apex 300 b300k

Some links are affiliate links; they never change the price you pay or which price we show. Owner reports are paraphrased from public comments and link to their source.