Head-to-head test
Anker SOLIX C1000 vs BLUETTI AC180P
The AC180P's 384 extra watt-hours already decide three of the six real-world scenarios before you even look at the price tag — the only genuine reason to take the lighter, cheaper C1000 instead is its real expansion battery, something the AC180P, despite what older listings imply, does not have.
Written by Ian SchneiderUpdated
Solar & Off-Grid Tester, Station Arena Test Desk
Anker
SOLIX C1000
3,269Power Score · Appliance Class
$449.00 list · direct from Anker
BLUETTI
AC180P
3,318Power Score · Appliance Class
$649.00 list · direct from BLUETTI
Spec deltas
The BLUETTI AC180P holds 1,440Wh to the Anker SOLIX C1000's 1,056Wh, for $599 against $549 — a $50 gap that buys 384 more watt-hours and 500 more rated cycles. Run the ownership math over each unit's life and the AC180P comes out cheaper per kWh too, at $0.12 against the C1000's $0.17.
Where the C1000 answers back is weight and growth. It's 6.9 lbs lighter at 28.4 lbs, and it accepts genuine Anker expansion batteries — the AC180P doesn't, whatever some listings claim; the most it will do with an external battery is trickle-charge itself through Power Bank ModeB3.
That split decides the matchup. Buyers sizing for today's biggest capacity and lowest cost per kWh should take the AC180P. Buyers who expect to need more later, or who want the lighter box, have a real reason to pay the extra $50 for the C1000 instead.
What the Numbers Reveal
Each conclusion stated first — the numbers behind it on one line, the full analysis below.
Capacity
Factor in the AC180P's extra 500 rated cycles and it amortizes across roughly 60% more total lifetime energy than the C1000 over the warranty term — the higher sticker price is buying a bigger total energy budget, not just a bigger single charge.
AC180P holds 1,440Wh for $599 versus the C1000's 1,056Wh for $549AC180P's cost per lifetime kWh is $0.12 versus the C1000's $0.17
Why it mattersAnyone shopping purely on dollars per watt-hour owned should treat the $50 gap as already decided in the AC180P's favor.
The AC180P's capacity lead is permanent, parked forever at 1,440Wh; the C1000's smaller battery is the one with room to grow past it.
The C1000 supports genuine Anker expansion batteriesThe AC180P does not accept true expansion batteries like the B80, B230, or B300 — it can only be charged by them through Power Bank ModeB3
Why it mattersBuyers who expect their power needs to grow — more gear, longer trips, a future built-out setup — should weight the real expansion path over today's bigger number.
That gap matters most for anyone running either unit as an overnight UPS or near a CPAP — the AC180P's published 45dB is a known quantity going in, the C1000's noise floor is a bet.
AC180P discloses 45dB of fan noise under loadThe C1000's decibel rating isn't published, though reviewers describe its fans spinning up audibly, comparable to a desktop computer at speed, during fast charging or heavy output, and nearly silent under light loadsA1
Why it mattersBuyers planning to run either unit indoors overnight should weight the AC180P's transparency, not just its number.
The AC180P clears the identical jobs with real margin left in both cases, not a number that's already over budget.
Remote Workday needs 910Wh: the C1000 sits at 101% of its usable capacity, the AC180P at 74%Tailgate Party needs 670Wh: the C1000 sits at 75%, the AC180P at 55%
Why it mattersAnyone whose typical day looks like a full remote workday, not a light one, shouldn't count on the C1000 to finish it.
The specific dimensions that decide these two units — everything else is a tie.
Lifetime Value
Selected because: Cost per lifetime kWh and total lifetime energy are the clearest numeric win for the AC180P.
cost / lifetime kWh
Fifty dollars gets you 384 more watt-hours and a cheaper rate on every one of them: $0.12 per lifetime kWh on the AC180P against $0.17 on the C1000. That's not a close call — it's the AC180P beating the C1000 on both the sticker price per watt-hour and the long-run ownership math at the same time.
The C1000's 3,000 rated cycles against the AC180P's 3,500 widens the gap further over a multi-year ownership window. If cost per kWh owned is the whole decision, it's already made.
Your Life, Your Pick
Selected because: The AC180P wins three of six scenarios outright, including one the C1000 can't actually finish.
Weekend Camping, the 8-Hour Blackout, and Van Life Daily beat both units — neither is sized for a two-night trip, a multi-appliance outage, or daily van living, so the gap between them barely matters in those three jobs. You need a bigger class of unit for any of them.
The real split shows up in Remote Workday and Tailgate Party, where the AC180P finishes with real capacity left and the C1000 is either over its ceiling or down to a sliver. CPAP Overnight goes to the AC180P too, though both units have plenty of room there — buy on price for that job alone.
Growth Path
Selected because: The single biggest misconception in this matchup — clears up which unit actually expands.
solar input
This is the one place the C1000 has no real competition: it accepts genuine Anker expansion batteries, so its 1,056Wh today can grow without replacing the base unit. The AC180P cannot do this, no matter how the listing reads.
Plug a B300 or similar pack into the AC180P and Power Bank Mode kicks in — the external battery recharges the AC180P, but none of that capacity stays attachedB3. It's a charging cable wearing an expansion port's name tag.
What the Specs Don't Tell You
Selected because: Noise disclosure and the expansion warning are the concrete, spec-true tiebreakers.
rated cycles
The AC180P's 45dB under load is a published number, which counts for something even though it's not whisper-quiet — you know what you're buying before the fans spin up. The C1000 doesn't publish a rating at all, so its real noise floor is something buyers discover during their first fast chargeA1.
The expansion gap is the AC180P's genuine cost of admission for this matchup: what ships is the ceiling, permanently. Anyone weighing these two on "room to grow" should treat that as decided before comparing anything else.
Brand Trust
Selected because: Anker and BLUETTI diverge sharply on support consistency, worth surfacing for a $549-599 purchase.
Anker carries broader name recognition and historically excellent no-hassle replacements, though recent reports describe AI-driven support giving generic responses and complicated return logistics for heavy units. BLUETTI's support is the more inconsistent of the two by reputation — some buyers get smooth service, others describe weeks of runaround — but its app is tied for the best-reviewed in the category and its lineup carries the widest capacity range at the best price-per-Wh in the market.
Neither brand is a clean win on trust alone. Buying either direct from the manufacturer's own site, rather than a marketplace reseller, tends to produce the better support outcome.
Strengths & trade-offs
Anker SOLIX C1000
Strengths
- +Costs $200 less
- +Lighter by 6.9 lb
- +Faster solar charging
Trade-offs
- –No major technical downsides compared to rival.
BLUETTI AC180P
Strengths
- +Larger battery capacity
Trade-offs
- –Substantially more expensive (+$200) than the SOLIX C1000.
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 unit is built for a two-night trip — both would need well over a full charge to cover it. This is a job for a larger-capacity unit in either lineup, not a tiebreaker between these two.
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
Neither unit
Neither unit can fully handle this scenario (needs 1,645Wh). You'd need a higher-capacity station or to cut back on usage.
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
AC180P
Both units have capacity to spare running a CPAP overnight, so the win here is nominal. Buy on price and noise disclosure for this job alone, not raw capacity.
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
AC180P
The AC180P finishes a laptop-monitor-router workday at 74% of capacity, with real room left. The C1000 sits at 101% for the same job — on paper, it doesn't actually finish.
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
AC180P
Both handle a tailgate afternoon, but the AC180P does it with more than twice the leftover margin of the C1000. If your setup tends to grow mid-trip, that buffer is the difference.
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
Neither unit can fully handle this scenario (needs 4,685Wh). You'd need a higher-capacity station or to cut back on usage.
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 six 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: AC180P runs 6h vs 4.4h.
$649 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 0–81.6hComfort & Convenience
Makes off-grid life actually enjoyablescale 0–16.3hHigh-Draw Appliances
These reveal the real limitsscale 0–1.2h¹ 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
July 14, 2026
Verdict: the BLUETTI AC180P
The AC180P wins on the numbers that matter for a unit you'll actually run out of power on: it costs less per lifetime kWh ($0.12 against the C1000's $0.17), rides 500 more rated cycles, and clears Remote Workday and Tailgate Party with real capacity to spare where the C1000 is already over its own ceiling or down to a sliver. The C1000 answers back with $50 off, 6.9 fewer pounds to carry, and a real expansion battery the AC180P can't match no matter what you plug into it. If growth is a genuine plan and not a hedge, buy the C1000. If you just need the bigger tank today, the AC180P is the correct buy.
Editor-assigned confidence, based on cited owner research and spec analysis.
List prices as of July 14, 2026. The links below open Anker's and BLUETTI's current prices.
$649.00 list · direct from BLUETTI
or check the SOLIX C1000 price$449.00 list
Written by Ian Schneider, Solar & Off-Grid Tester · Station Arena Test Desk · Updated July 14, 2026
Measured Data
Benchmark scores and the full spec record, side by side.
Benchmark scores
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 C1000 rates 4.5/5 (70th percentile of 24 Everyday-class units), and AC180P rates 4.0/5 (43rd percentile of 24 Everyday-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.
AC180P: 45dB Under Load
Not whisper-quiet, but it's a disclosed, verifiable number — you know what a fast charge sounds like before the unit arrives, which is more than the C1000's spec sheet offers.
The AC180P's Expansion Port Is a Charging Port
Despite what some listings imply, the AC180P does not accept true expansion batteries — B80, B230, and B300 packs will recharge it through Power Bank Mode, but none of that capacity stays attached afterward. What you buy at 1,440Wh is what you keep.
Warranty Value Comparison
The SOLIX C1000 gives you 11.1 years of warranty per $1,000 spent, vs the AC180P's 7.7 years. That's 1.4× more coverage per dollar. An underrated factor if you're keeping this unit for years.
Anker Doesn't Publish a Noise Rating for the C1000
The AC180P's 45dB under load is a known number before you buy. The C1000 carries no published decibel rating at all — real-world reports describe audible fan spin-up during fast charging, but there's no spec to check it against in advance.
Full record above — the Test Desk pick is the AC180P.
Check AC180P price →or check the SOLIX C1000 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 C1000 is cheaper to buy, but the AC180P is cheaper to own. At $0.13/kWh over its lifetime vs $0.14/kWh, the AC180P's higher cycle life and capacity make each dollar go further over the years.
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
Parent brand trust from Anker's consumer electronics dominance. InfiniPower technology for long cycle life. Strong $/Wh value in the mid-size and larger units — the S2000, F2600 and C1000 are among the better buys per watt-hour in the catalog.
Worth knowing
Support quality appears to be declining from its historically excellent level. Firmware updates have removed features without warning. Expansion ecosystem is smaller than EcoFlow's.
BLUETTI
Ecosystem
One of the broadest lineups — 15-20+ models from budget (AC2A) to flagship (Apex 300, 3072Wh). 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. Full LFP standardization across lineup (3,500-6,000+ cycles). Dual-voltage (120V/240V) in flagships.
Worth knowing
Customer support inconsistency is the #1 risk factor. Older/discontinued units may become unrepairable — no spare parts policy for some models. Some reports of erratic communication from support agents.
Analyst note
Anker and BLUETTI are close competitors. Both have established support channels and growing ecosystems. Compare their specific warranty terms and community size for your peace of mind.
Growth path
SOLIX C1000
EXPANDABLESupports Anker expansion batteries, so you can add capacity later without replacing the base unit — useful if your needs may climb past 1,056Wh.
Accepts up to 600W of solar. Suitable for a 1-2 panel setup.
Generous port selection supports complex multi-device setups.
Expansion batteries are Anker-specific. You're investing in the Anker ecosystem.
AC180P
FIXED CAPACITYFixed at 1,440Wh, with no expansion — so size it for your needs up front rather than planning to add capacity later.
Accepts up to 500W of solar. Suitable for a 1-2 panel setup.
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 SOLIX C1000's expandability as a straight win here: it starts at 1,056Wh, below the AC180P's 1,440Wh, so a first expansion battery largely buys back capacity the AC180P already includes. It only pulls ahead if you'd grow past 1,440Wh — short of that, the AC180P'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.
Anker SOLIX C1000
The C1000's most consistent complaint is fan noise: reviewers describe it spinning up audibly, comparable to a desktop computer fan at speed, during fast charging or heavy output — though it's nearly silent under light loadsA1. Anker doesn't publish a decibel rating for it, so that description is the only real data point buyers get before purchase.
Everything else earns praise. One reviewer ran the unit over a year with zero issues and minimal capacity loss, and it handled seven brief outages in a 30-day home-office UPS test without a single equipment shutdownA2. Reviewers also credit it with nailing the fundamentals — fast AC recharge, a strong inverter for short bursts, and a genuinely useful appA3 — and say it handles virtually any household appliance short of central air or an electric dryerA4.
“One reviewer used their unit for over a year with zero issues and minimal battery degradation — about 97% of original capacity. In a 30-day home-office UPS test it handled 7 brief outages with no equipment shutdowns or data loss.”
Sources
outdoorgearlab.com · lifenhancer.com · rvoutfitting.com · outdoortechlab.com · wattsontheroof.com · technerdo.com · teqclub.com
BLUETTI AC180P
The most important thing to know about the AC180P doesn't read like a limitation on the spec sheet: despite some listings implying otherwise, it does not accept true expansion batteries like the B80, B230, or B300 — it can only be recharged by them through Power Bank ModeB3. Whatever capacity you buy today at 1,440Wh is what you own for the life of the unit.
On its own terms, owners are satisfied. Reviewers confirm the Turbo Charge feature holds up under real testing, and the Power Lifting Mode's 2,700W surge handles higher-draw devices without dramaB1. It also carries a strong rating across hundreds of verified purchasersB2 — buyers trust this unit, they just shouldn't expect it to grow.
“Delivers 1,440Wh of LiFePO4 capacity and 1,800W continuous output, with a Turbo Charge feature reaching 0-80% in roughly 45 minutes and a Power Lifting Mode that delivers 2,700W to run high-powered devices.”
Sources
backuppowerhub.com · bluettipower.com · batteryskills.com · the-gadgeteer.com · bestgeneratorsolar.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
- Fan noise under fast charging or heavy load is the consistent knock; otherwise strong reliability, fast recharge, and practical size earn broad praise. [SOLIX C1000 · 3 entries]
- Fast Turbo charging, strong owner ratings, and a useful Power Lifting Mode are the praise; the key clarification is that it does NOT accept true battery expansion despite some listings. [AC180P · 3 entries]
- A1
“Fan noise is the single most common complaint — the fans spin up audibly during fast charging or heavy output near the unit's limit, comparable to a desktop computer fan at speed. Under light loads (below ~500W) it's nearly silent.”
outdoorgearlab.com / lifenhancer.com — Anker SOLIX C1000 review · 2026 · [negative]
- A2
“One reviewer used their unit for over a year with zero issues and minimal battery degradation — about 97% of original capacity. In a 30-day home-office UPS test it handled 7 brief outages with no equipment shutdowns or data loss.”
rvoutfitting.com / outdoortechlab.com — Anker SOLIX C1000 long-term notes · 2026 · [positive]
- A3
“Nails the fundamentals: fast AC recharge, strong inverter performance for short bursts, practical size and weight for a 1kWh unit, and genuinely useful app monitoring.”
wattsontheroof.com / technerdo.com — Anker SOLIX C1000 review · 2026 · [positive]
- A4
“Handles virtually any household appliance except central AC and electric dryers; a popular 'sweet spot' 1kWh unit for RV and home backup.”
rvoutfitting.com / teqclub.com — Anker SOLIX C1000 review · 2026 · [positive]
- B1
“Delivers 1,440Wh of LiFePO4 capacity and 1,800W continuous output, with a Turbo Charge feature reaching 0-80% in roughly 45 minutes and a Power Lifting Mode that delivers 2,700W to run high-powered devices.”
backuppowerhub.com / bluettipower.com — AC180P review · 2025-2026 · [positive]
- B2
“Holds a strong 4.6-star rating from 708 verified Amazon purchasers; reviewers confirm the 0-80% in 45 minutes claim held true in testing.”
batteryskills.com / the-gadgeteer.com — AC180P review · 2025-2026 · [positive]
- B3
“Does not include a battery expansion port and does not support capacity expansion with B80, B230, or B300 batteries — contrary to some listings — though it can be charged by such batteries through Power Bank Mode.”
bestgeneratorsolar.com / backuppowerhub.com — AC180P buyer's guide · 2025-2026 · [mixed]
Research compiled July 14, 2026.
Who Should Buy Which
Buy the SOLIX C1000 if you…
- →You want a genuine expansion path — a real plan to add capacity later without replacing the base unit, not just a spare battery to recharge from.
- →You want the lighter, cheaper unit and your heaviest realistic day is a CPAP overnight or a tailgate afternoon, not a full remote workday.
Buy the AC180P if you…
- →Your day regularly looks like a full remote workday or a loaded tailgate setup — the AC180P clears both with real capacity left where the C1000 doesn't.
- →You're optimizing for the lowest cost per watt-hour owned and don't expect to need more than 1,440Wh, ever.
If neither fits
If your real need is a two-night camping trip needing about 2,100Wh, or an 8-hour multi-appliance blackout needing about 1,645Wh, both of these units fall short — even the bigger AC180P would need 172% and 134% of a full charge respectively to cover them. Look at a larger-capacity unit in either brand's lineup instead.
The Bottom Line
This comes down to whether growth is a real plan or a hedge. The AC180P wins on the numbers that decide most purchases — more capacity, a lower cost per lifetime kWh, and outright wins in the two scenarios that actually separate these units — while the C1000's only structural advantage is a real expansion battery the AC180P cannot match, whatever older listings claim.
Buy the AC180P for the bigger, cheaper-to-own tank today. Buy the C1000 only if you're confident you'll actually use that expansion path — otherwise you're paying $50 less for less capacity and calling it flexibility.
Frequently Asked Questions
Answers drawn from the spec record and cited owner research.
Does the BLUETTI AC180P support battery expansion?
No, despite what some listings suggest. It does not accept true expansion batteries like the B80, B230, or B300 — it can only be recharged by them through Power Bank Mode, which doesn't add usable capacity to the unit. The Anker SOLIX C1000 does support genuine expansion batteries, making it the real choice if growth is your priority.
Is the AC180P worth $50 more than the SOLIX C1000?
For most buyers, yes. It holds 384 more watt-hours, costs $0.12 per lifetime kWh against the C1000's $0.17, and wins Remote Workday and Tailgate Party outright where the C1000 either exceeds its own capacity or finishes with little left. The C1000 only pulls ahead if you specifically value its lighter weight or its real expansion path.
Which one is quieter?
The AC180P publishes a 45dB rating under load, so you know what you're buying going in. Anker doesn't publish a rating for the C1000, though reviewers describe its fans spinning up audibly during fast charging or heavy output while staying nearly silent under light loads.
Can the SOLIX C1000 handle a full remote workday?
Not comfortably. A typical remote workday needs about 910Wh, which puts the C1000 at 101% of its usable capacity — effectively over its own ceiling. The AC180P handles the same day at 74%, with real capacity to spare.
Which one should I actually buy?
Buy the AC180P if you want the bigger tank today at a lower cost per watt-hour, and don't plan to outgrow 1,440Wh. Buy the C1000 if a real expansion path matters to your future plans, or if the extra 6.9 lbs is the deciding factor for how often you'll actually carry it.
Where to buy
Anker SOLIX C1000
$449.00
$449.00 list · direct from Anker
BLUETTI AC180PPick
$649.00
$649.00 list · direct from BLUETTI
Prices may vary by retailer and are subject to change.