BLUETTI · Apex series
BLUETTI Apex 300 + 2×B300K
The Apex 300 with two B300Ks is eight kilowatt-hours at 214 pounds, which is furniture, not luggage: every scene we run cleared, the van day on two thirds. Nineteen head-to-heads, split nearly evenly. No owner has written in; reviewers report stacked Apexes losing count of each other’s charge and solar capped below the sticker, which support calls normal.
8.3 kWh · 3,840 W · 213.9 lb · 6,000 cycles · 19 head-to-heads
7,590
Power Score · The AC & Fridge Zone
- 8.3 kWh
- capacity
- 3,840 W
- output
- 213.9 lb
- weight
- 6,000
- rated cycles
Should you buy it right now?
Wait, or check the store first: $4,099 is 11% over its usual $3,699, and last time it came back within 6 days.
Verdicts by Gunner Gustafson and the Test Desk·Figures computed 2026-09-07
01 · Six real-world jobs
What the Apex 300 + 2×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 it2 nights · Two nights off-grid with essential comfort
2,100Wh needed · 30% of the tank · 4,950Wh spare
Peak 75W: starts and holds
8-Hour Blackout
Clears it8 hours · Keep the essentials running through a night without power
1,645Wh needed · 23% of the tank · 5,405Wh spare
Peak 150W: starts and holds
CPAP Overnight
Clears it8 hours · Sleep therapy without interruption — the #1 medical use case
320Wh needed · 5% of the tank · 6,730Wh spare
Peak 40W: starts and holds
Remote Workday
Clears it8 hours · Full work day off-grid without power anxiety
910Wh needed · 13% of the tank · 6,140Wh spare
Peak 60W: starts and holds
Tailgate Party
Clears it4 hours · Game day power for the crew
670Wh needed · 10% of the tank · 6,380Wh spare
Peak 400W: starts and holds
Van Life Daily
Clears it24 hours · A full day of mobile living — the ultimate endurance test
4,685Wh needed · 66% of the tank · 2,365Wh spare
Peak 150W: starts and holds
02 · Head-to-head record
9 wins in 19 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.
Win share
9–6–4
- vs BLUETTI3–3
- vs Anker2–0–3
- vs Goal Zero3–0–1
- vs Jackery0–2
- vs EcoFlow1–1
winsApex 300 + 2×B300K vs EcoFlow DELTA Pro 3
48 searches reached this matchup
losesApex 300 + 2×B300K vs BLUETTI Apex 300 + B500K
34 searches reached this matchup
winsApex 300 + 2×B300K vs Anker SOLIX C300
18 searches reached this matchup
losesApex 300 + 2×B300K vs EcoFlow DELTA Pro Ultra
15 searches reached this matchup
winsApex 300 + 2×B300K vs Goal Zero Yeti PRO 4000
13 searches reached this matchup
winsApex 300 + 2×B300K vs Anker SOLIX F3800 PLUS
11 searches reached this matchup
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 + 2×B300K if…
You want the lower price, more capacity, and a battery rated for seven times the cycle life.
Decided 6 matchups · read one →
You need 240V. One owner charges a PHEV off the Apex's 240V output at 3.3kW when he stops [A5].
Decided 4 matchups · read one →
The van-lifer or off-gridder with a 4,000Wh-plus daily draw, a fixed install location, and up to 2,400W of solar to feed it.
Decided 3 matchups · read one →
You're wiring a van, cabin or partial-home setup around 8,294Wh you can expand later, and you can give 213.9 lbs a permanent home.
Decided 3 matchups · read one →
A rival won when…
You want the lighter of the two builds, even though at 148.8 lbs it's still a two-person or trolley job.
Decided 6 matchups · read one →
You want a CPAP backup that lives on the nightstand and fits in a suitcase, for $700.
Decided 4 matchups · read one →
You already own the big system and want a small second unit for the tent or the truck.
Decided 2 matchups · read one →
The camper, tailgater, or road-tripper who needs power that travels. At 28 pounds it rides in one hand and covers a 670Wh tailgate with 228Wh to spare.
04 · Price history
What the Apex 300 + 2×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
Since August 20 · above usual on 25 of 53 days · last time back within 6 days
Built from the Sep 7, 5 AM UTC read.
$3,699
Usual price
53% of days tracked
$3,699
Best we've seen
August 19
$4,099
Today
11% over usual
$4,299
Highest seen
25 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 + 2×B300K: usually $3,699, best $3,699 (Aug 19), today $4,099 on bluettipower.com. Tracked twice a day since Jul 17. https://stationarena.com/products/bluetti-apex-300-2-b300k#price-history
Alerts for the Apex 300 + 2×B300K
One email when it drops below $3,699, comes back in stock, or a newer model in this line appears. Nothing else.
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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
5/17 positive excerpts, 0 sources
When multiple Apex 300 units (as in this 2x-B300K configuration) are charged together, owners report state-of-charge sync problems and solar input capped far below the advertised rating, which Bluetti support has called 'normal' behavior.
· researched 2026-07-09
From the test desk
“This is now a genuine fork.”
“Both are the same Apex 300 base — 3,840W, 7,680W surge, 3,500 cycles, 2,400W solar, a 10ms UPS — with two different battery builds bolted on.”
“Take the Apex 300 stack if you can name your load in kilowatt-hours.”
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
8294.4
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
213.9
Weight (lbs)
- Noise Level (db)45
- UPSYes (<10ms)
- App ControlYes
- Warranty (Years)5
Compare it with
Apex 300 + 2×B300K vs
leads on 5 · trails on 4
| Spec | Apex 300 + 2×B300K | DELTA Pro 3 | Gap |
|---|---|---|---|
| Usual price | $3,699 | $2,799 ● | +$900 |
| Capacity (Wh) | 8294.4 ● | 4096 | +4198.4 |
| Output (W) | 3840 | 4000 ● | -160 |
| Surge (W) | 7680W ● | 6000W | +1680 |
| Rated cycles | 6000+ ● | 4000 | +2000 |
| Solar input (W) | 2400 ● | 2000 | +400 |
| Weight (lb) | 213.9 | 112.4 ● | +101.5 |
| Noise (dB) | 45 | 30 ● | +15 |
| AC outlets | 6 ● | 5 | +1 |
| USB-C ports | 2 | 2 | 0 |
| Warranty (yr) | 5 | 5 | 0 |
| Chemistry | LiFePO4 | LiFePO4 | |
| UPS | Yes (<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.
Apex 300
2.8 kWh · $1,699
Apex 300 + B300K
5.5 kWh · $2,599
Apex 300 + B500K
7.9 kWh · $3,299
Apex 300 + 2×B300K
8.3 kWh · $3,699
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.
$0.45
per Wh
at $3,699
$0.07
per lifetime kWh
49,766 kWh over 6,000 cycles
16.4 yr
if cycled daily
58 yr at weekends only
5 yr
warranty
$740 per covered year