Head-to-head test
Anker SOLIX S5000 vs BLUETTI Apex 300 + 2×B300K
Per watt-hour these two price within a nickel of each other, so you're choosing between the Apex stack's 3,270Wh of extra storage and the S5000's stronger inverter in one wheeled cabinet.
Full profiles: Anker SOLIX S5000 → · BLUETTI Apex 300 + 2×B300K →
Written by Gunner GustafsonUpdated
Whole-Home Backup Tester, Station Arena Test Desk
Spec deltas
The Anker SOLIX S5000 stores 5,024Wh in one 97 lb cabinet on wheels; the BLUETTI Apex 300 with two B300K packs stores 8,294Wh across three boxes that weigh 213.9 lb together. Per watt-hour they price within a nickel of each other, $0.50 against $0.45. Neither is the cheap one. They're two different answers to how much battery a house needs.
Our call is the S5000 at $2,500. It's the stronger inverter, 4,500W against 3,840W, with 240V split-phase through its L14-30R, 3,000W of solar input against 2,400W, and it's one thing to roll into a corner of the garage instead of three to stack. The Apex stack costs $1,199 more and hands you about 3,270Wh more stored energy for it.
That energy is the one reason to go the other way. If outages where you live last two or three days and the sky stays grey through them, a bigger tank beats a stronger engine, and the Apex stack is the bigger tank.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
continuous output
On a transfer-switch install the inverter decides how many circuits run at once; the battery only decides for how long. Extra storage behind a lower ceiling means the Apex stack runs fewer things for longer, and the S5000 runs more things for less time.
S5000: 4,500W rated output, at 120V or 240V split-phaseA2Apex 300 + 2×B300K: 3,840W rated outputSurge: S5000 8,000W, Apex stack 7,680W
Why it mattersIf you're feeding a 240V transfer switch or running several big loads together, weight the S5000's inverter over the Apex stack's extra storage.
solar input
Sun narrows that gap, cloud widens it. At full rated input, which real panels rarely deliver, the S5000 refills 5,024Wh in about 1.7 hours (5,024 ÷ 3,000) and the Apex stack refills 8,294Wh in about 3.5 (8,294 ÷ 2,400). In a sunny multi-day outage both are full by lunch and the S5000's smaller tank stops mattering. In a week of overcast, stored energy is all you have, and the Apex lead holds.
Usable after the flat 85% derate: S5000 4,270Wh, Apex stack 7,050WhAfter an 8-hour blackout using 1,645Wh: 1.6 more nights left on the S5000, 3.3 on the Apex stackSolar input: S5000 3,000W, Apex stack 2,400W
Why it mattersBuyers facing long, cloudy winter outages are the ones who should pay the gap for the Apex stack; everyone else is buying reserve they'll rarely reach.
Across a three-day outage with the inverter left on, that's about 806Wh (269 × 3), close to a quarter of the Apex stack's 3,270Wh capacity lead gone to standby before you've run a single appliance.
S5000 idle draw: 8.8W on 120V, by Anker's internal testingA16Apex 300 AC idle drain: 20W, per one reviewerB15Over 24 hours: about 211Wh (8.8 × 24) against 480Wh (20 × 24)
Why it mattersAnyone who leaves the inverter on around the clock should read the Apex stack's capacity advantage as smaller than the nameplate gap.
Recharge matters most in the long outage that's the whole case for the bigger tank, so the Apex stack's capacity lead arrives with a refill question attached. The S5000 has no field record either way, only Anker's 4,300W single-unit charging ratingA17.
One forum thread: stacked Apex units charge at different rates, one at 100% while another sits at 50%B1Same thread: an owner asked Bluetti to show an Apex 300 charging above 1,200W and got nothingB2, and support called the behaviour normalB3Solar owners flag the 60V input limit and a firmware bug that drops solar detectionB8B9
Why it mattersIf your plan depends on refilling 8,294Wh from solar every day, read the Apex charging threads before you pay the gap.
The specific dimensions that decide these two units — everything else is a tie.
Runtime: Will It Power Your Gear?
Selected because: The Apex stack's extra storage is its whole case, so how many nights each one carries decides this page.
continuous output
Two nights against three is the honest summary of these rows. Out of an eight-hour blackout the S5000 keeps enough for 1.6 more nights like it and the Apex stack keeps 3.3, and no inverter rating changes that arithmetic. If your outage plan is to get through tonight and recharge tomorrow, the S5000 covers it with room. If the plan is to get through a sunless weekend, it doesn't.
The one row the S5000 misses is the van-life day at 4,685Wh, where the flat 15% derate leaves it 415Wh short even though its 5,024Wh nameplate clears the load. Nobody is bolting either of these into a van, but it's a fair stand-in for a heavy all-day household draw, and it's exactly where the Apex stack's size shows.
Portability & Form Factor
Selected because: One wheeled cabinet against three boxes changes where each can live and how it gets there.
weight
Ninety-seven pounds on wheels with a pull rod is a garage-floor object: you step on the foot plate, tip it back and roll itA10A11. The Apex stack is 213.9 lb in three pieces, and the sources on the Apex 300 describe it as something you install rather than carryB12B13. Neither of these goes camping, whatever the scenario rows say. The real difference is whether you can move it to the other side of the garage on a Saturday without asking a neighbour.
Lifetime Value
Selected because: Both carry the same cycle rating, so lifetime cost comes down to price spread across stored energy.
cost / lifetime kWh
$0.08 against $0.07 per lifetime kilowatt-hour. With 6,000 cycles rated on both and 5 years of cover on both (up to 5 years with registration on the BLUETTI side), lifetime cost is just price over capacity, and the Apex stack's bigger battery wins it by a cent. On a purchase this size that's a rounding error. The $1,199 up front buys more storage and nothing extra in lifespan, so pay it only if you'll use the storage.
Brand Trust
Selected because: One side has a mixed forum record on charging; the other has only its maker's documentation.
The Apex side has a field record and it's mixed. Forum owners describe stacked packs charging at different ratesB1, one waited two weeks for troubleshooting and a week for an RMAB4, and a reviewer who ran it with a B300K found it would carry essentials for more than a full dayB16. The S5000 has no field record at all, only Anker's own documentation, so its column looks clean because it's blank, not because it's been proven.
Strengths & trade-offs
Anker SOLIX S5000
Strengths
- +Costs $1,199 less
- +Lighter by 116.9 lb
- +Higher AC output
- +Faster solar charging
Trade-offs
- –Very heavy unit that may be difficult for one person to lift.
BLUETTI Apex 300 + 2×B300K
Strengths
- +Larger battery capacity
Trade-offs
- –Substantially more expensive (+$1,199) than the SOLIX S5000.
- –Significantly heavier (+116.9 lbs), making it harder to move.
- –Weaker inverter (-660W) limits appliance compatibility.
- –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
SOLIX S5000
The Apex 300 + 2×B300K at 213.9 lbs is not a take-along — it rolls off a truck bed if it travels at all, so this scenario belongs to the SOLIX S5000 by default — and it earns it, covering the 2,100Wh with 2,170Wh to spare. Capacity was never the Apex 300 + 2×B300K's problem here; getting to a campsite was.
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 + 2×B300K
Both survive the night. The Apex 300 + 2×B300K finishes at 23% used with 5,405Wh left — 3.3 more nights like it. The SOLIX S5000 finishes at 39% with 2,625Wh, 1.6 more nights like it. If your outages tend to run past one evening, that difference is the whole argument between them.
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
SOLIX S5000
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 SOLIX S5000 is rated 30dB against the Apex 300 + 2×B300K'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.
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, and their USB-C output is a wash — pick on weight, ports, or price.
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
SOLIX S5000
The Apex 300 + 2×B300K at 213.9 lbs is not a take-along — it rolls off a truck bed if it travels at all, so this scenario belongs to the SOLIX S5000 by default — and it earns it, covering the 670Wh with 3,600Wh to spare. Capacity was never the Apex 300 + 2×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 + 2×B300K
The SOLIX S5000 doesn't finish — 4,270Wh usable against the 4,685Wh this needs leaves it 415Wh short, about 91% of the scenario covered (its nameplate 5,024Wh actually clears this — the flat 15% conversion allowance is what tips it under). The Apex 300 + 2×B300K covers it with 2,365Wh 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
For this load: Apex 300 + 2×B300K runs 34.4h vs 20.8h.
$3,699 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 0–470hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–94hHigh-Draw Appliances
These reveal the real limitsscale 0–7.1h¹ 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 9, 2026
Verdict: the SOLIX S5000
Buy the S5000 unless your outages run into a second and third night. The two land at $0.50 and $0.45 per watt-hour, share a 6,000-cycle rating and a 5-year warranty, so neither is the bargain and you're really choosing a shape. The S5000 puts 4,500W through one 97 lb cabinet, takes 3,000W of solar to the Apex stack's 2,400W, and costs $2,500. The Apex 300 with two B300K packs answers with 8,294Wh and about 7,050Wh usable, enough for 3.3 more nights after an eight-hour blackout against the S5000's 1.6. That reserve is real. It also costs $1,199 more, weighs 213.9 lb across three boxes, and comes with a forum record of packs charging out of step and an owner who couldn't get Bluetti to demonstrate charging above 1,200WB1B2.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of October 9, 2026. The links below open Anker's and BLUETTI's current prices.
$2,499.99 · direct from Anker
or check the Apex 300 + 2×B300K price$3,899.00 list
Written by Gunner Gustafson, Whole-Home Backup Tester · Station Arena Test Desk · Updated October 9, 2026
Black Friday · 45 days out
Price to beat:Apex 300 + 2×B300K $3,699
We have never seen it discounted, so any real cut would be a first.
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
Not rated for both units (minimum threshold unmet): Solar Generator.
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, SOLIX S5000 rates 4.6/5 (74th percentile of 20 Home Backup-class units), and Apex 300 + 2×B300K rates 3.4/5 (7th 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.
Weight Reality Check
Neither unit is grab-and-go. The SOLIX S5000 (97 lbs) is manageable solo but heavier than a large checked suitcase. The Apex 300 + 2×B300K (213.9 lbs) is spread across its boxes — no single lift, but nothing you reposition on a whim. That's a 117 lb difference, and it is paid once — getting the heavier one into position, not every time you move it.
Apex 300 + 2×B300K: 45dB Published
45dB is about as loud as a running refrigerator. The SOLIX S5000 is rated 30dB — 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.
Warranty: No Difference
Both units carry the same 5-year warranty, so coverage isn't a tiebreaker here. The Apex 300 + 2×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. Worth saying because the per-dollar framing can suggest otherwise: the SOLIX S5000 works out at 2 years of cover per $1,000 spent against the Apex 300 + 2×B300K's 1.4, but that spread is the price gap, not the terms.
Full record above — the Test Desk pick is the SOLIX S5000.
Check SOLIX S5000 price →or check the Apex 300 + 2×B300K 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 SOLIX S5000 is cheaper to buy, but the Apex 300 + 2×B300K is cheaper to own. At $0.07/kWh over its lifetime vs $0.08/kWh, the Apex 300 + 2×B300K's higher cycle life and capacity make each dollar go further over the years. One thing to know reading the table: both carry the same 6,000-cycle rating, so the lifetime rows are sticker price and capacity in disguise — the wear horizon is identical and decides nothing here.
Brand trust
Anker
Ecosystem
7-8 SOLIX portable power stations across C-series (compact) and F-series (flagship), plus the X1 home energy system
Support
US-based support. Historically known for incredible no-hassle replacements, but recent reports describe AI-driven support agents giving generic responses and complex return logistics for heavy units (hazmat shipping). The Anker brand reputation is still strong, but SOLIX-specific support quality is trending down.
Community
Moderate — active Reddit (r/Anker, r/AnkerSOLIXCommunity) and growing. Benefits from Anker's massive consumer electronics brand awareness.
App experience
Rated 4.5/5 iOS (~1,100 ratings) · 4.3/5 Android
Unique strength
The SOLIX line sits under Anker's consumer-electronics name, and this cabinet carries UL 9540 and UL 9540A listings in its own documentation.
Worth knowing
Recent reports describe SOLIX support leaning on AI agents and awkward return logistics for heavy units, and a wheeled cabinet this size is exactly the return that gets complicated.
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
Support quality varies more at BLUETTI than anywhere else in the category. Buying direct tends to go better than buying through a reseller, and it's also how you get the full warranty term.
Analyst note
Neither brand wins this on support: Anker's is slipping from a high bar and BLUETTI's has always been uneven. With price per watt-hour this close, let the inverter-versus-capacity question decide, not the logo.
Growth path
SOLIX S5000
EXPANDABLESupports Anker expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 5,024Wh.
Accepts up to 3,000W 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 Anker-specific. You're investing in the Anker ecosystem.
Apex 300 + 2×B300K
EXPANDABLESupports BLUETTI expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 8,294Wh.
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, so neither locks you out of growth — decide on capacity, price, and the rest, not the expansion checkbox.
What Owners Report
Patterns from published owner reports and long-term reviews — every claim cited to its source below.
Anker SOLIX S5000
There's no field evidence on the S5000 yet. What exists is Anker's own documentation: the rating label establishes the 5,024Wh LiFePO4 pack and 4,500W of output at 120V or 240V split-phaseA1A2, and the product page carries the 6,000-cycle rating and the 8.8W idle figure, both from Anker's internal testingA12A16.
“5,024 Wh LiFePO4 pack rated 16 V, 314 Ah; the cell code IFpP72/175/208[5S] reads as five large prismatic cells in series.”
Sources
ankersolix.com
BLUETTI Apex 300 + 2×B300K
Field data on the Apex 300 is thin and short-term; nothing in our research runs past about six months of ownershipB0. Charging is the recurring complaint: owners describe stacked units filling at different ratesB1, one could not get Bluetti to show charging above 1,200WB2, and support called it normalB3. Solar users single out the 60V input limit and a firmware bug that needs the cables replugged before solar is detectedB8B9.
The praise is real too. One owner uses the 240V output to charge a plug-in hybrid at 3.3kW on the roadB5, a reviewer found the fan even and free of rattle near sleeping areasB14, and another ran essentials for over a day on an Apex with a B300KB16. The catch reviewers and owners both raise is that the Apex 300 face has no DC or USB ports without the Hub D1 add-onB10B17.
“For me the 240V output is great. I can stick it in the back of my PHEV and use the 240V output to charge at 3.3KW when I stop.”
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 Anker documentation (rating label, product page, launch announcement), plus one of our own readings of the app and label drawing. [SOLIX S5000 · 20 entries]
- 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. [Apex 300 + 2×B300K · 3 entries]
- Customer/RMA support experience is inconsistent — some owners report smooth help, others describe multi-week delays and unresponsive tickets. [Apex 300 + 2×B300K · 2 entries]
- The base unit's 60V solar input ceiling and a firmware bug that drops solar detection (requiring an unplug/replug) are the two most-cited technical gripes among solar-focused owners. [Apex 300 + 2×B300K · 2 entries]
- Because the Apex 300 ships with no built-in DC/USB ports, owners and reviewers alike flag the mandatory ~$300 Hub D1 accessory as an unexpected added cost. [Apex 300 + 2×B300K · 2 entries]
- Despite being marketed as 'portable,' the unit's weight (~38kg/85lb base alone, more with B300K batteries) leads multiple sources to describe it as effectively a stationary/semi-permanent installation rather than something carried around. [Apex 300 + 2×B300K · 2 entries]
- A1
“5,024 Wh LiFePO4 pack rated 16 V, 314 Ah; the cell code IFpP72/175/208[5S] reads as five large prismatic cells in series.”
Anker rating label, model AS510 (certified 2026-09-15) · 2026-09-15 · [positive]
- A2
“AC output 4,500 W max, either at 120 V (37.5 A across the outlets) or at 120/240 V split-phase (18.75 A).”
Anker rating label, model AS510 (certified 2026-09-15) · 2026-09-15 · [positive]
- A3
“Outlets: one L14-30R carrying 240 V split-phase at up to 4,500 W; one TT-30R RV outlet at 120 V, 30 A, 3,600 W; NEMA 5-20R household outlets at 120 V, 20 A, 2,400 W; USB-C 100 W, USB-C 15 W and USB-A 12 W.”
Anker rating label, model AS510 (certified 2026-09-15) · 2026-09-15 · [positive]
- A5
“Two solar inputs, 3,000 W together: 11–60 V at 17 A (1,000 W) and 16–165 V at 17 A (2,000 W).”
Anker rating label, model AS510 (certified 2026-09-15) · 2026-09-15 · [positive]
- A6
“Expands with up to five BP5000 expansion batteries (model AS5101A1-85), each 5,024 Wh, for 30,144 Wh in total. They join through a 400 V DC port rated 9,000 W in and 7,500 W out; each battery charges at up to 3,200 W and discharges at up to 3,000 W.”
Anker rating label, model AS510 (certified 2026-09-15) · 2026-09-15 · [positive]
- A10
“An upright cabinet with a handle on top, a full-width front panel with a display, and wheels at the base; the label drawing of the back adds a foot step marked STEP ON for tipping it back onto its wheels.”
Power Station Arena, read from the S5000 card in the Anker app and the label drawing, 2026-09-20 · 2026-09-15 · [positive]
- A11
“Net weight 97 lb; 10.6 × 22.0 × 15.2 in (W × D × H), on wheels with a pull rod and foot pedal.”
Anker SOLIX S5000 product page, ankersolix.com/s5000 (published 2026-10-09) · 2026-10-09 · [positive]
- A12
“Cycle life: 6,000 cycles to 80% capacity, 10,000 cycles to 60%; Anker estimates a 15-year lifespan at 1 to 2 cycles a day, with 5 years of product coverage.”
Anker SOLIX S5000 product page, ankersolix.com/s5000 (published 2026-10-09) · 2026-10-09 · [positive]
- A16
“Idle draw 8.8 W on 120 V output and 13.7 W on 240 V output (Anker internal testing).”
Anker SOLIX S5000 product page, ankersolix.com/s5000 (published 2026-10-09) · 2026-10-09 · [positive]
- A17
“Single-unit charging power 4,300 W; Anker quotes 0 to 100% in 99 minutes. AC input 1,800 W at 120 V or 4,500 W at 240 V.”
Anker SOLIX S5000 product page, ankersolix.com/s5000 (published 2026-10-09) · 2026-10-09 · [positive]
- B1
“When the units are charging from the grid they charge at different rates and not together... you may have one at 100% and one at 50%.”
DIY Solar Power Forum — thread 'Bluetti Apex 300 problems' · 2025-09 · [negative]
- B2
“I have requested a short video from Bluetti showing an APEX 300 actually charging more than 1200 watts. They have been unable to produce one.”
DIY Solar Power Forum — thread 'Bluetti Apex 300 problems' · 2025-09 · [negative]
- B3
“Bluetti support says this is normal... This makes them a bad choice for off grid applications.”
DIY Solar Power Forum — thread 'Bluetti Apex 300 problems' · 2025-09 · [negative]
- B4
“It has taken me 2 weeks of troubleshooting with them and a week to get an RMA approval... I have asked for updates with NO response 48 hours later.”
DIY Solar Power Forum — thread 'Apex 300 Support issues' · 2025-11 · [negative]
- B5
“For me the 240V output is great. I can stick it in the back of my PHEV and use the 240V output to charge at 3.3KW when I stop.”
DIY Solar Power Forum — thread 'Bluetti Apex 300 launched today… anyone have thoughts?' (page 2) · 2025-05 · [positive]
- B8
“The 60V solar limit is the most common and vociferous complaint, with users calling it "misleading" and a "joke".”
BIKMAN TECH blog aggregating user/forum reports — 'Bluetti APEX 300 - Everything You Need to Know' · 2025-11 · [negative]
- B9
“the unit failing to detect solar input until the cables are physically unplugged and replugged. Bluetti support has reportedly acknowledged this as a known firmware issue”
BIKMAN TECH blog aggregating user/forum reports — 'Bluetti APEX 300 - Everything You Need to Know' · 2025-11 · [negative]
- B10
“widespread frustration over the "unbundling" strategy and the "hidden cost" of the Hub D1 for "missing" DC/USB ports.”
BIKMAN TECH blog aggregating user/forum reports — 'Bluetti APEX 300 - Everything You Need to Know' · 2025-11 · [negative]
- B12
“it weighs in at 38kg, and is probably much too big and heavy for most people to carry alone.”
Trusted Reviews — 'Bluetti Apex 300 Review' · 2025-10 · [mixed]
- B13
“Even that is quite a lump though! Keep us posted @RacingSlow you may be the future of van electrics!”
VW T6 Transporter Forum — thread 'Bluetti Apex 300' (van-conversion owner discussion) · 2025-07 · [mixed]
- B14
“Fan noise remains even, with no distracting pitch or rattle. This makes the Apex 300 usable near sleeping areas or indoor workspaces without disturbance.”
Yanko Design — 'BLUETTI Apex 300 Review: The All-in-One Solar, Gas, and Battery Solution' · 2025-05 · [positive]
- B15
“Efficient 20W AC idle drain extends runtime significantly during extended outages.”
Yanko Design — 'BLUETTI Apex 300 Review: The All-in-One Solar, Gas, and Battery Solution' · 2025-05 · [positive]
- B16
“With some portable power stations, I'd have to ration power more carefully, but with this system, I could run essentials for more than a full day if I needed to.”
Techspective — 'Bluetti Apex 300 with B300K Review' · 2025-09 · [positive]
- B17
“Not having DC or USB ports on the face is a tradeoff. The Hub D1 solves the problem—but it's an additional $300 accessory that you then have to bolt on after the fact.”
Techspective — 'Bluetti Apex 300 with B300K Review' · 2025-09 · [mixed]
Research compiled October 9, 2026.
Who Should Buy Which
Buy the SOLIX S5000 if you…
- →You're wiring a 240V transfer switch and want the full 4,500W on both legs from one cabinet you can roll out of the way.
- →Your outages are usually a single night, and you'd rather keep $1,199 than store energy you'll rarely reach.
- →You've got a big solar array and want somewhere to put 3,000W of it across two inputsA5.
Buy the Apex 300 + 2×B300K if you…
- →Your outages run two or three days, usually under cloud, and 7,050Wh usable carrying 3.3 more nights after the first is exactly what you're buying.
- →The batteries will sit in one corner for years, and the cheaper watt-hour of the two matters more to you than a stronger inverter.
If neither fits
If you're shopping for campsites or a truck bed, close this tab cheerfully: both of these live in a garage. A compact portable you can lift with one hand is the right category. And if you want the whole house covered without wheeling anything anywhere, look at a hardwired home battery system instead.
The Bottom Line
Same cycle rating, same warranty length, and a price per watt-hour within a nickel. That leaves one real question: do you need a bigger tank or a stronger engine? The S5000 is the stronger engine, 660W more from one wheeled cabinet with 240V split-phase and more solar input, and it costs $1,199 less.
Take the Apex stack only if your outages outlast a second night under cloud. Otherwise roll the S5000 into the garage and keep the difference.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Is the Anker SOLIX S5000 or the BLUETTI Apex 300 with two B300K batteries better for home backup?
The S5000, unless your outages regularly last more than one night without sun. It has the stronger inverter at 4,500W against 3,840W and costs $1,199 less. The Apex stack's 8,294Wh carries 3.3 more nights after an eight-hour blackout against the S5000's 1.6, and that's the only reason to pay more.
Can the Anker S5000 be expanded past the Apex 300 stack's capacity?
Yes. The S5000 takes up to five BP5000 packs of 5,024Wh each, so one pack puts it at 10,048Wh, past the Apex stack's 8,294Wh. Our record carries no price for the BP5000, so we can't say what that costs against the Apex stack.
Which one recharges faster from solar?
On paper the S5000: 3,000W of solar input across two ports against the Apex stack's 2,400W, feeding a smaller battery. At full rated input that's about 1.7 hours to fill the S5000 and about 3.5 for the Apex stack. Apex owners also report a 60V input limit and a solar-detection bug.
Do both of these put out 240V?
Both list a 240V outlet. Anker's label rates the S5000 at 4,500W on 240V split-phase through its L14-30R. Our record doesn't carry a separate 240V rating for the Apex stack, so plan around its 3,840W total ceiling.
Where to buy
Anker SOLIX S5000Pick
$2,499.99
$2,499.99 · direct from Anker
BLUETTI Apex 300 + 2×B300K
$3,899.00
$3,899.00 · direct from BLUETTI
Last checked 28 days ago. Prices move — check before you buy.
Prices may vary by retailer and are subject to change.