S2000
- an outage has to last: 2,010Wh, 40% more
- a PC rides on it: 10ms UPS, 6W idle
- you want Wi-Fi control and 6,000 cycles
AC180P
- you run up to 1,800W at once
- a car fridge needs its 12V socket
- you’ll use 500W of solar, cables included
Prices and stock checked by our price engine on November 5, 2026 at 4:31 AM EST. Each product is rechecked several times a day; the time refreshes when you load the page.
Same weight on your arm. One carries 40% more battery, the other 300 more watts.
The Anker SOLIX S2000 stores 2,010Wh in a 35.7 lb tower, delivers 1,500W from five outlets, switches to battery in 10ms, idles at 6W and is rated for 6,000 cycles, but takes only 400W of solar and has no 12V socket. The BLUETTI AC180P stores 1,440Wh at 35.27 lb and delivers 1,800W, with a 12V car socket, a wireless pad and 500W of solar, but it switches in 20ms, connects over Bluetooth only and is rated for 3,500 cycles. For an outage that has to last, the S2000; for a car, a campsite or loads between 1,500 and 1,800W, the AC180P.
Below: every difference with numbers, a 20-second calculator for your own gear, seven modeled situations, a bigger third option, and what five published reviews found.
Same weight, prices $80.99 apart today. The S2000 holds 570Wh more, switches to battery in 10ms, idles at 6W and is rated for 6,000 cycles; the AC180P delivers 300W more, adds a 12V socket and a wireless pad and takes 100W more solar.
- you need the longest runtime
- a PC needs a 10ms UPS
- you cycle it daily: 6,000 cycles
- you run 1,500 to 1,800W at once
- you need a 12V car socket
- you’ll use 500W of solar
The five differences that decide it
The five gaps that decide the purchase, with the better spec for most buyers flagged. Nine smaller differences and the full spec sheet come after the calculator. Both are LiFePO4 units of about 35 lb with a heating-load mode, a 5-year warranty and no expansion port.
Will it run your setup? Check in 20 seconds
Estimates use 85% usable capacity and 70% of rated solar output. Real results vary with temperature, inverter load, shade and appliance cycling. Fridge and freezer watts are daily averages and do not include compressor startup surges.
Runtime by appliance, one at a time
Simple energy estimates, not measured runtimes. One column per unit: about 1,709Wh usable on the S2000 and 1,224Wh on the AC180P. Rows above 1,500W run on the AC180P only.
Appliance for appliance, the S2000 lasts 40% longer than the AC180P.
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The price gap, in numbers
The Anker SOLIX S2000 costs $80.99 more than the BLUETTI AC180P and adds 570Wh: that is $0.14 per extra Wh, against $0.45 per Wh for the AC180P.
Prices refresh daily from Anker US and BLUETTI US.What the $80.99 buys, on either side: 570Wh more battery, a 10ms UPS, Wi-Fi and 6,000 cycles on the S2000, or 300W more output, a 12V socket and 100W more solar on the AC180P.
The lifetime figure divides the price by the rated cycles times the capacity: 6,000 × 2.01kWh for the S2000, 3,500 × 1.44kWh for the AC180P, both to 80%. Read it as a ranking, not a bill. Neither takes an extra battery, so the box is the ceiling on both. Both prices move often; the figures are refreshed daily by our price engine.
The third option: the BLUETTI Elite 200 V2 at $899
BLUETTI Elite 200 V2: $899 today
If you want the S2000’s capacity and more than the AC180P’s output: 2,073.6Wh and 2,600W from four 20A outlets, 1,000W of solar, a 12V socket, a 15ms UPS, Wi-Fi and a 6,000-cycle rating. It weighs 53.4 lb, about 18 lb more than either, and can’t be expanded. StorageReview got 1.91kWh out of it. Our Elite 200 V2 review goes deeper. See the Elite 200 V2 at BLUETTI.
Seven modeled situations, worked out
Same formula as the calculator above, with 0 extra batteries unless stated. The fridge averages 60W, about 525kWh a year, in the range printed on typical EnergyGuide labels; that average does not include compressor startup surges.
24-hour outage, essentials only
The S2000 gets you through the night and well into the next day; the AC180P covers an evening and a night. Neither can add a battery.
Microwave and toaster, fridge running
The AC180P has 150W to spare. On the S2000, run the toaster after the microwave.
CPAP, how many nights
Both cover a long weekend. Small loads favor the S2000 further: Anker rates its idle draw at 6W, BLUETTI the AC180P’s self-consumption at about 15W.
Refill from solar, each at its maximum
The AC180P refills in a sunny day with time to spare; the S2000 needs a full day of sun and a bit more, and 400W is its ceiling however many panels you add.
Home office through an outage
The S2000 carries almost a full day and switches in 10ms. The AC180P’s 20ms kept two monitors and a lamp running for The Gadgeteer, but an older TV turned off on the same switchover.
A 12V fridge in a car or van
The AC180P plugs the fridge into its 12V socket and charges from the car at 100W (12V) or 200W (24V). The S2000 has no 12V output, so the fridge runs through its AC adapter with the inverter on.
A full-size fridge, nothing else
The S2000 runs it more than a day; the AC180P most of a day. Gizmodo ran a real fridge for 42 hours on the S2000.
Nine more differences, the spec sheet and the box
Smaller gaps that rarely decide the purchase, then the full specifications and what ships in the box.
S2000 and AC180P weight, dimensions and full specifications
Weight: 35.7 lb for the S2000 and 35.27 lb for the AC180P. Dimensions: 8.2 × 11.1 × 12.7 in for the S2000 tower, 13.39 × 9.72 × 12.48 in for the AC180P. Everything else is in the sheet below.
Anker SOLIX S2000 and BLUETTI AC180P full specifications
Every published figure for both units, grouped. Green marks the better value.
What’s in the box
S2000
- S2000 power station2,010Wh, 35.7 lb
- AC charging cable
- User guide
- Solar cable sold separatelyPV to XT60i, per the manual
AC180P
- AC180P power station1,440Wh, 35.27 lb
- AC charging cable1.8 m
- Car charging cable
- Solar charging cable1.5 m
- User manual and grounding screw
From the S2000 user guide and the AC180P US user manual.
07 · ChargingHow fast each one refills
Shorter bar, faster refill. Each row is scaled to its slower unit.
S2000: UltraFast must be switched on in the app; Anker advises using it only when neededAC180P: Turbo and Silent modes are switched on in the BLUETTI app; Standard is the default
Our solar times assume panels deliver 70% of their rating; the brands’ figures assume ideal sun.
Every port, side by side
S2000
AC180P
Practical consequence: the S2000 splits its five outlets between front and back so it can sit in a corner with a fridge plugged in behind, but it has no 12V output at all. The AC180P has one outlet fewer but adds a 12V socket, a 15W wireless pad and four USB-A ports. Neither has a TT-30 RV port or an expansion port.
09 · NoiseNoise and heat: S2000 vs AC180P
Anker rates the Anker SOLIX S2000 at 30dB, though Android Authority found UltraFast charging uncomfortably loud. BLUETTI says the BLUETTI AC180P makes 45dB in Silent charging mode and publishes no figure under load.
All dB figures are the brands’; we found no independent measurement for either.Every figure we found, with its source
What reviewers heard: Fans run only under load or fast charging (ESS News); quiet enough for conversation under heavy load (Gizmodo); UltraFast charging uncomfortably loud (Android Authority).
Measured by a tester Brand figure
- Cap the AC charging power overnight: Silent Mode at 600W or less on the S2000, Silent charging (260W) on the AC180P.
Cold, heat and storage: S2000 vs AC180P
The Anker SOLIX S2000 and the BLUETTI AC180P both charge from 32°F to 104°F and run from −4°F to 104°F. Above 95°F, BLUETTI limits the AC180P to 1,500W.
Figures from the S2000 US user guide (AS220) and the AC180P US user manual (V1.0).AC180P: output drops to 1,500W above 95°F.
- In a garage in winter, bring either one inside to recharge: neither charges below 32°F.
- For storage over three months, keep the AC180P at 40 to 60%, upright, and fully cycle it every 6 months (BLUETTI US manual). Anker publishes no storage range for the S2000.
App, UPS and smart features
The Anker SOLIX S2000 has the smarter app, over Wi-Fi, with Storm Guard and Time-of-Use, and the faster 10ms UPS. The BLUETTI AC180P connects over Bluetooth only and switches in 20ms.
On the S2000, use Wi-Fi: on Bluetooth alone, most smart modes are off.Green zone: a switch under about 16ms, which most desktop PCs ride through without restarting.
Can it charge off-peak? The Anker SOLIX S2000 schedules charging with Time-of-Use over Wi-Fi; BLUETTI lists no charging schedule for the BLUETTI AC180P.
Does it prepare for storms? The Anker SOLIX S2000 charges to full before severe weather with Storm Guard over Wi-Fi; BLUETTI lists no storm mode for the BLUETTI AC180P.
Does it handle generators and weak grids? The BLUETTI AC180P has a Grid Enhancement mode for unstable grid or generator input, to be turned off when it serves as a UPS; Anker lists no equivalent for the Anker SOLIX S2000.
Can you add a battery later? Neither: the Anker SOLIX S2000 has no expansion port, and BLUETTI says the BLUETTI AC180P only takes a battery as a charger through Power Bank Mode.
Does it work as a UPS? The Anker SOLIX S2000 switches to battery in 10ms, the BLUETTI AC180P in 20ms or less. ESS News saw office equipment ride through simulated outages on the S2000; The Gadgeteer saw monitors and a lamp ride through on the AC180P, but an older TV turned off.
Can it run a heater or kettle above its rating? SurgePad on the Anker SOLIX S2000 (2,600W) and Power Lifting on the BLUETTI AC180P (2,700W) run heating appliances past the rating. Neither helps motors, and Power Lifting is off while the AC180P charges from the wall.
How does the app connect? The S2000 connects over Wi-Fi and Bluetooth; the AC180P over Bluetooth only, so it can only be checked within range.
Warranty and support
Both get 5 years: Anker US for the Anker SOLIX S2000, BLUETTI US for the BLUETTI AC180P.
Same term. The S2000 has the higher cycle rating.Subject to each brand’s warranty terms and eligibility.
Anker rates the S2000 at 6,000 cycles to 80% capacity, or 10,000 to 60%; BLUETTI rates the AC180P at 3,500+ cycles to 80%. At one full cycle a day, that is about 16 and 9.6 years. Calendar aging and heat also wear the cells.
- Buy the AC180P from BLUETTI or an authorized seller and keep the proof of purchase: BLUETTI voids the warranty for unauthorized resellers.
What reviewers report
We have not lab-tested these two units. Here is what five published reviews found, with the source, author and date for each point. Four cover the S2000; only one hands-on review of the AC180P could be found and verified, and its sample was supplied by BLUETTI.
S2000: ESS News (May 2026), Android Authority (June 2026), CleanTechnica (June 2026), Gizmodo (July 2026), all US unitsAC180P: The Gadgeteer (February 2025)
Usable capacity
- S2000Reviewer Kept a refrigerator going for 42 hours before the battery reached 5%. Gizmodo, Wes Davis, July 2026
- S2000Reviewer Just over 60 hours on a fridge, with a kettle used three times and a microwave once. Android Authority, Edgar Cervantes, June 2026
- AC180PReviewer At 80% charge and 1,589W, the unit’s display estimated 0.7 hours of runtime. The Gadgeteer, Zack Chongulia, February 2025
Charging
- S2000Reviewer About 1.2 hours to 80% and 1.7 hours to full from a 20A household circuit. ESS News, Andrew Riha, May 2026
- S2000Reviewer About 1.7 hours from 10% to full in UltraFast mode; 80% in 4.5 hours from a 400W panel in ideal sun. Android Authority, June 2026
UPS and output
- S2000Reviewer Dropped only to 99% after 10 hours on standby with AC on, about 2W. ESS News, May 2026
- S2000Reviewer A 600 to 700W window air conditioner most likely never started its compressor. Gizmodo, July 2026
- S2000Reviewer Can’t run electric heaters, cooktops or double induction burners; ran a fridge, lights, internet and a phone charger at once. CleanTechnica, Kyle Field, June 2026
- AC180PReviewer Ran a 1,500W corded leaf blower at full power with no hiccups or fluctuations. The Gadgeteer, Zack Chongulia, February 2025
- AC180PReviewer The 20ms switchover kept two computer monitors and a lamp running without interruption. The Gadgeteer, Zack Chongulia, February 2025
- AC180PReviewer On a second switchover test, an older TV turned off while an Xbox and a soundbar kept running. The Gadgeteer, Zack Chongulia, February 2025
Daily use and issues
- S2000Reviewer Cons: only three USB ports and no handle that makes it truly portable. Android Authority, June 2026
- S2000Reviewer Cons: 400W solar input is modest, no TT-30 RV plug, and a second handle would help. ESS News, May 2026
- AC180PReviewer The app connects over Bluetooth only, with no Wi-Fi option for remote monitoring. The Gadgeteer, Zack Chongulia, February 2025
- AC180PReviewer The app shows the charge percentage but not the time left. The Gadgeteer, Zack Chongulia, February 2025
Practical limits before you buy
- The AC180P was out of stock at BLUETTI US on October 31, 2026. The live availability is shown above.
- 1,500W is a hard ceiling on the S2000. A microwave and a toaster together overload it, and Gizmodo’s window AC didn’t start. SurgePad’s 2,600W covers heating appliances only.
- The S2000 has no 12V socket. A 12V fridge needs its AC adapter.
- The AC180P can’t be expanded. BLUETTI’s US FAQ says B80, B230 and B300 batteries can only charge it through Power Bank Mode, even though the same page’s marketing text mentions expansion.
- The AC180P app is Bluetooth only. No Wi-Fi, so no checking it from work.
- Use Wi-Fi with the S2000. On Bluetooth only, Time-of-Use, Storm Guard and remote control are off, per Anker.
- The AC180P solar input stops at 60V. Two panels in series above that will damage it, and BLUETTI doesn’t cover it.
- Mind the cycle figures. Anker’s 10,000 cycles for the S2000 are to 60% capacity; to the usual 80% it is rated for 6,000, against 3,500+ for the AC180P.
- AC180P, per its US documentation: Power Lifting is unavailable while the unit charges from a wall outlet or generator, which bypass the inverter.
- AC180P, per its US documentation: Between 95 and 104°F, discharge is limited to 1,500W.
Frequently asked questions
What is the difference between the Anker SOLIX S2000 and the BLUETTI AC180P?
They weigh about the same, 35.7 and 35.27 lb. The S2000 stores 2,010Wh instead of 1,440Wh, switches to battery in 10ms instead of 20ms, connects over Wi-Fi and is rated for 6,000 cycles instead of 3,500. The AC180P delivers 1,800W instead of 1,500W and adds a 12V socket, a wireless pad and 500W of solar instead of 400W.
Which is cheaper?
The BLUETTI AC180P costs $80.99 less today: $649, against $729.99 for the Anker SOLIX S2000. Per Wh, the S2000 is cheaper: $0.36, against $0.45. Prices refresh daily; the price section above has the full breakdown.
Can either be expanded?
No. The S2000 has no expansion port, and BLUETTI’s US FAQ says the AC180P doesn’t support capacity expansion; B80, B230 and B300 batteries can only charge it through Power Bank Mode.
Which is better as a UPS?
The S2000: 10ms against 20ms or less. The Gadgeteer found the AC180P’s switchover kept two monitors and a lamp running, but an older TV turned off. Neither has a USB data link for automatic PC shutdown.
How long will each run a refrigerator?
At a 60W average and 85% usable capacity: about 28.5 hours on the S2000 and 20.4 hours on the AC180P. Gizmodo ran a real fridge for 42 hours on the S2000.
Can they run a 1,500W space heater?
Yes, both: about 1.1 hours on the S2000, which sits at its limit, and about 49 minutes on the AC180P.
Which charges faster from solar?
The AC180P: it accepts 500W, about 4.1 hours of full sun at 70% panel output, against about 7.2 hours for the S2000 at its 400W limit.
Which is easier to carry?
Neither has an edge on weight: 35.7 lb for the S2000 and 35.27 lb for the AC180P. The S2000 is a tower, 8.2 × 11.1 × 12.7 inches; the AC180P has two built-in handles on top.
Related comparisons and reviews
How we compared and sources
Research-based comparison. We have not physically tested these two units. Specs come from Anker and BLUETTI US documentation; usage observations are attributed to named reviewers. Prices and availability were checked on October 31, 2026.
- Specs: Anker US, S2000 with its user guide (AS220, US), and BLUETTI US, AC180P with its US user manual, read on October 31, 2026. The AC180P page’s marketing text mentions expansion batteries; its FAQ says it doesn’t support capacity expansion, and we follow the FAQ.
- The S2000’s car socket (120W) and Alternator Charger (400W) rates come from Android Authority; Anker’s US guide doesn’t list them.
- Reviewer reports on the AC180P: The Gadgeteer, Zack Chongulia, February 2025.
- Reviewer reports on the S2000 (US units): ESS News (Andrew Riha, May 2026), Android Authority (Edgar Cervantes, June 2026), CleanTechnica (Kyle Field, June 2026) and Gizmodo (Wes Davis, July 2026).
- Runtime = capacity × 0.85 ÷ watts. Solar harvest = min(panel watts, max input) × sun hours × 0.70. Cost per lifetime kWh = price ÷ (cycles × capacity in kWh).
Same 35 lb class. The S2000 holds 2,010Wh with a 10ms UPS and Wi-Fi; the AC180P delivers 1,800W with a 12V socket and 500W of solar.
Prices checked November 5, 2026 at 4:31 AM EST
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Originally published: November 3, 2026