C1000
- you buy new from Anker US today
- you may add a second kWh later
- you run loads up to 1,800W
C800X
- you already own one
- 1,200W covers your loads
- 5 lb less to carry
Prices and stock checked by our price engine on November 13, 2026 at 8:00 AM EST. Each product is rechecked several times a day; the time refreshes when you load the page.
Same 58-minute refill, but only one of them is still on Anker’s US shelf, and only one grows to 2kWh.
The Anker SOLIX C800X stored 768Wh of LFP and delivered 1,200W from five AC outlets, with 300W of solar, a 58-minute UltraFast refill and a sub-20ms UPS, at 23.15 lb; Anker US no longer sells it, and the C800 family pages now redirect to the C1000 Gen 2. The Anker SOLIX C1000 stores 1,056Wh, delivers 1,800W from six outlets with 2,400W SurgePad, refills in 58 minutes, takes 600W of solar and one extra battery for 2,112Wh, at 28.4 lb. If you own a C800X that covers your loads, keep it; if you’re buying, the C1000 is the bigger, expandable one you can still get.
Below: what separates them with numbers, a 20-second calculator for your own gear, seven modeled situations, the documented replacement, and what published tests found on each.
The C1000 is the bigger unit: 288Wh more battery, 600W more output, one more AC outlet, twice the solar input and a battery port for 2,112Wh, for 5.3 lb more. Both refill from the wall in 58 minutes and are rated for 3,000 cycles. The C800X is no longer sold by Anker US; if you own one, nothing here forces an upgrade.
- you may expand to 2,112Wh
- you run up to 1,800W
- you use up to 600W of solar
- you own one that works
- 1,200W is enough
- you want a documented UPS time
The five differences that decide it
Both use LFP cells and the Anker app over Wi-Fi and Bluetooth, both refill from the wall in 58 minutes in their fast mode, and Anker rates both for 3,000 cycles. These five gaps decide it.
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. About 898Wh usable on the C1000 and 653Wh on the C800X, before any extra battery; OutdoorGearLab measured 897Wh out of a C1000 and MyChooz 636Wh out of a C800X (EU unit).
Appliance for appliance, the C1000 lasts 38% longer than the C800X.
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What the current options cost today
Anker’s C800 family pages now redirect to the C1000 Gen 2. If a seller still has a C800X, check that it is new and that Anker’s 5-year warranty applies. Both prices move often.
The third option: the Anker SOLIX C1000 Gen 2 at $529.99
Anker SOLIX C1000 Gen 2: $529.99 today
The model Anker’s C800 pages now redirect to: 1,024Wh and 2,000W from five AC outlets, a documented 10ms UPS, 600W of solar, a 49-minute refill and 4,000 rated cycles, at 24.9 lb, between the two here. It has no battery port and no light. Pick it over the C1000 if a desktop PC on battery backup is the job and 1kWh is enough. Our C1000 vs C1000 Gen 2 comparison goes deeper. See the C1000 Gen 2 at Anker.
Seven modeled situations, worked out
Same formula as the calculator above: 85% of the rated capacity, no extra battery unless the card says so.
24-hour outage, essentials only
An evening and a night on the C1000, about three hours less on the C800X. Only the C1000 can add a battery for a full day.
Space heater on high
The C1000 runs it at full power. The C800X’s 1,200W inverter can only drive it on SurgePad, which runs heating loads at reduced power.
A 1,100W microwave
Both run it. The C1000 leaves 700W for a fridge at the same time, the C800X about 100W.
Home office through an outage
A workday on the C1000, most of one on the C800X. Anker rates the C800X under 20ms and leaves the C1000’s switch time blank; reviewers kept a workstation (TechRadar, C1000) and a game console (ITC.ua, C800X) running through plug pulls.
Refill from the wall before a storm
A tie on Anker’s figures. OutdoorGearLab measured 65 minutes in the C1000’s ultra-fast mode; the C800X charges at 750W by default, about 90 minutes.
Refill from solar, each at its maximum
With twice the input, the C1000 refills a bigger battery faster. On the C1000, AC and solar don’t add up: AC has priority, per Anker.
Adding a second kWh later
The C1000 takes one BP1000 with one cable, as TechRadar did. The C800X has no battery port; for more energy you’d need a second station.
Ten 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.
C1000 and C800X weight, dimensions and full specifications
Weight: 28.44 lb for the Anker SOLIX C1000 and 23.15 lb for the C800X, per Anker. Dimensions: 14.8 × 8.07 × 10.5 in and 14.6 × 8.07 × 9.96 in. Everything else is in the sheet below.
Anker SOLIX C1000 and Anker SOLIX C800X full specifications
Every published figure for both units, grouped. Green marks the better value.
What’s in the box
C1000
- C1000 power station1,056Wh, 28.4 lb
- AC charging cable
- User manual
C800X
- C800X power station768Wh, 23.15 lb
- AC charging cable
- Car charging cable
- Solar charging cable
C1000 contents from Anker US; C800X contents from Anker’s A1755 datasheet.
07 · ChargingHow fast each one refills
Shorter bar, faster refill. Each row is scaled to its slower unit.
C1000: OutdoorGearLab measured 88 minutes on the default setting and 65 in ultra-fast modeC800X: MyChooz drew 881Wh from the wall for a full charge, about 89% efficiency (EU unit)
Our solar times assume panels deliver 70% of their rating; the brands’ figures assume ideal sun.
Every port, side by side
C1000
C800X
Practical consequence: the C1000 has one more AC outlet and a battery port; the USB and 12V sides are the same on both, with 100W and 30W USB-C, two 12W USB-A and a 120W car socket.
09 · NoiseNoise: C1000 vs C800X
Neither has a noise rating. OutdoorGearLab found the Anker SOLIX C1000 one of the loudest at maximum load; MyChooz measured the Anker SOLIX C800X up to 54dB at 778W (EU unit).
Both are quiet at light loads, per reviewers.Every figure we found, with its source
No decibel figure published.
What reviewers heard: Small fans that sound slightly harsh near maximum AC load (Trusted Reviews, UK unit).
What reviewers heard: Below about 200W the fan was hidden by normal background sound (MyChooz).
Measured by a tester Brand figure
- Charge during the day, or lower the charging speed in the Anker app overnight.
Cold and heat: C1000 vs C800X
Same limits: the Anker SOLIX C1000 and the Anker SOLIX C800X charge from 32°F to 104°F and run from −4°F to 104°F, per Anker. Neither has a water rating.
Figures from Anker US and Anker’s A1755 datasheet.- Charge either one indoors in winter: neither charges below 32°F.
App, UPS and smart features
The Anker SOLIX C1000 takes an extra battery and charges at 1,300W; the Anker SOLIX C800X documents its UPS time, under 20ms.
Both use the Anker app over Wi-Fi and Bluetooth.Can you add a battery later? The Anker SOLIX C1000 takes one BP1000; the Anker SOLIX C800X has no battery port.
Does it work as a UPS? Anker rates the Anker SOLIX C800X under 20ms and leaves the Anker SOLIX C1000’s switch time blank; TechRadar used a C1000 daily as a workstation UPS, and ITC.ua kept a game console running through a plug pull on a C800X.
Does it have a fast charging mode? Both reach 58 minutes in their fast mode, per Anker; the Anker SOLIX C800X charges at 750W by default.
Can it run a heater above its rating? Both run heating loads above their continuous rating at reduced power on SurgePad.
Warranty and support
Both carry 5 years: the Anker SOLIX C1000 once registered, the Anker SOLIX C800X per Anker’s datasheet. An existing C800X keeps the term it was sold with.
Same term and the same 3,000-cycle rating.Subject to each brand’s warranty terms and eligibility.
Anker rates both at 3,000 cycles to 80%, about 8 years at one full cycle a day. Calendar aging and heat also reduce capacity, so read the ratings as a ceiling.
- Register a new C1000 with Anker when it arrives: that activates its 5-year coverage.
- Buying a C800X from a remaining seller, check that it is new and that Anker’s warranty applies.
What reviewers report
We have not lab-tested these two units. Here is what 6 published reviews found, with the source, author and date for each point. Reviews of UK and EU units are flagged: those models charge from 230V outlets and have different sockets, so their charge times and outlet findings don’t carry over to US units.
C1000: OutdoorGearLab (May 2025), Trusted Reviews (January 2024, UK unit), TechRadar (November 2024), Digital Camera World (January 2024, UK unit)C800X: ITC.ua (January 2025, EU unit), MyChooz (October 2026, EU unit)
Usable capacity
- C1000Reviewer On AC output the C1000 delivered 897Wh, about 85% of its rated 1,056Wh. OutdoorGearLab, Kenji Mowrey, May 2025
- C1000Reviewer At a constant 200W load it supplied 0.89kWh (84.2%); at 750W it reached 0.95kWh (89.8%). Battery data usable, UK 230V inverter. Trusted Reviews, Simon Handby, January 2024, UK unit
- C800XReviewer Self-discharge was negligible: under 1% lost over four days of standby. ITC.ua, Vladyslav Vasylenko, January 2025, EU unit
- C800XReviewer Discharging through a 778W heater, it delivered 636Wh of the rated 768Wh, about 83% system efficiency. MyChooz, Alexander Moiseenko, October 2026, EU unit
Charging
- C1000Reviewer The included AC cord gave a full charge in 88 minutes; the app’s ultra-fast mode cut it to 65 minutes. OutdoorGearLab, Kenji Mowrey, May 2025
- C1000Reviewer In ultra-fast mode it reached 80% in 42 minutes and full in 54 minutes. UK mains unit, flag for US charging power. Trusted Reviews, Simon Handby, January 2024, UK unit
- C1000Reviewer HyperFlash AC charging came very close to Anker’s 58-minute claim; the reviewer suggests leaving it off by default. UK unit. Digital Camera World, Adam Juniper, January 2024, UK unit
- C800XReviewer In the default 750W mode, 5% to 100% took 1 h 55 min; the 58-minute claim needs UltraFast mode switched on. Ukrainian 230V unit, flag. ITC.ua, Vladyslav Vasylenko, January 2025, EU unit
- C800XReviewer A full 1% to 100% charge drew 881Wh from the wall, about 89% charging efficiency. MyChooz, Alexander Moiseenko, October 2026, EU unit
Noise and heat
- C1000Reviewer Its fan at maximum load was one of the loudest of all the power stations they tested. OutdoorGearLab, Kenji Mowrey, May 2025
- C1000Reviewer The small fans sound slightly harsh and get quite loud near maximum AC load. Trusted Reviews, Simon Handby, January 2024, UK unit
- C800XReviewer Charging noise ranged from about 30 to 50 decibels; it was inaudible from 3 to 5 meters away. ITC.ua, Vladyslav Vasylenko, January 2025, EU unit
- C800XReviewer The final percent of every charge was the slowest and the loudest, reaching about 60 decibels. ITC.ua, Vladyslav Vasylenko, January 2025, EU unit
- C800XReviewer Fan noise hit up to 54dB under the 778W load; unpleasant but without odd tones, much lower at light loads. MyChooz, Alexander Moiseenko, October 2026, EU unit
UPS and output
- C1000Reviewer Run at its maximum output, it lasted 33 minutes before shutting off, without overheating. OutdoorGearLab, Kenji Mowrey, May 2025
- C1000Reviewer Using the claimed 20ms switchover, a test PC and NAS kept running when mains power was cut. Trusted Reviews, Simon Handby, January 2024, UK unit
- C1000Reviewer Used daily as the UPS for a heavy home-office workstation; repeated simulated outages caused no issue. TechRadar, Collin Probst, November 2024
- C800XReviewer Pulling the wall plug did not interrupt an Xbox Series X and TV drawing about 280W together. ITC.ua, Vladyslav Vasylenko, January 2025, EU unit
- C800XReviewer A TV plus satellite decoder drawing 120 to 140W ran for 4 h 9 min. ITC.ua, Vladyslav Vasylenko, January 2025, EU unit
Daily use and issues
- C1000Reviewer Measured weight was 28.65 lb. OutdoorGearLab, Kenji Mowrey, May 2025
- C1000Reviewer The app cannot set a maximum charge percentage, only the input speed. OutdoorGearLab, Kenji Mowrey, May 2025
- C800XReviewer Devices on the AC outlets drawing under 20W did not appear in the station or app statistics. ITC.ua, Vladyslav Vasylenko, January 2025, EU unit
- C800XReviewer Sturdy build, but the 3.1mm grille gaps and missing port covers leave it open to dust. MyChooz, Alexander Moiseenko, October 2026, EU unit
- C800XReviewer The overload test tripped protection twice, after which the station worked normally again. MyChooz, Alexander Moiseenko, October 2026, EU unit
Practical limits before you buy
- Anker US no longer sells the C800X. Its page returns an error, and the C800 and C800 Plus pages redirect to the C1000 Gen 2.
- Anker US sells the C1000 from its C1000X page. ankersolix.com/products/c1000 redirects there, and the purchase option is labelled C1000; check the model on the box.
- The C800X stops at 1,200W. SurgePad runs heaters above that at reduced power; motors need the continuous rating.
- The C800X charges at 750W by default. The 58-minute refill needs UltraFast.
- Anker gives no switch time for the C1000’s UPS. Test it with your PC before relying on it.
- Neither charges below 32°F. Bring it indoors to charge in winter.
- C1000, per Anker US: AC and DC inputs cannot charge at the same time; AC input takes priority, then it switches to DC when AC charging ends.
- C1000, per Anker US: SurgePad (up to 2,400W) works best with heat-generating devices and does not support precision instruments or voltage-sensitive devices.
- C1000, per Anker US: Storage: turn off outputs, store dry and cool, recharge to 100% if below 30%, fully charge every 3 months.
- C1000, per Anker US: Charging temperature 32 to 104F; discharging -4 to 104F. Max AC input 1,300W, solar 600W (11-60V).
- C800X, per Anker’s A1755 datasheet (US and Canada): Default AC recharging is 750W (about 90 min); the 58-minute full charge needs the 1,100W Ultra Fast mode.
- C800X, per Anker’s A1755 datasheet (US and Canada): Solar input 11-60V, 10A, 300W max (about 2.8 h with 300W); car socket recharging 120W, about 7.2 h.
Frequently asked questions
What is the difference between the Anker C1000 and the C800X?
The C1000 has 1,056Wh, 1,800W from six outlets, 600W of solar and a battery port for 2,112Wh, at 28.4 lb. The C800X had 768Wh, 1,200W from five outlets, 300W of solar and an under-20ms UPS, at 23.15 lb. Both refill in 58 minutes and are rated for 3,000 cycles.
Is the C800X discontinued?
Anker US no longer sells it: its page returns an error, and the C800 and C800 Plus pages redirect to the C1000 Gen 2.
What replaced the C800X?
Anker US points its C800 family pages to the C1000 Gen 2: 1,024Wh, 2,000W and a 10ms UPS, at 24.9 lb.
Can the C800X run a space heater?
Its 1,200W inverter runs heaters above that only on SurgePad, at reduced power. The C1000 runs a 1,500W heater at full power for about 36 minutes.
Can I expand either one?
The C1000 takes one BP1000 for 2,112Wh. The C800X has no battery port.
How long will each run a refrigerator?
At a 60W average, about 15 hours on the C1000 and 11 hours on the C800X; about 30 hours on a C1000 with a BP1000.
How much do they weigh?
28.44 lb for the C1000 and 23.15 lb for the C800X, per Anker.
What warranty do they have?
5 years on both: the C1000 once registered, the C800X per Anker’s datasheet.
Related comparisons and reviews
How we compared and sources
Research-based comparison. We have not physically tested these units. C1000 specs come from Anker US’s C1000X page, where the C1000 is now sold and whose tech specs are labelled C1000. C800X specs come from Anker’s US page as archived on March 29, 2026 and Anker’s A1755 datasheet for the US and Canada, because Anker US no longer lists it. Usage observations are attributed to named reviewers. Checked on October 31, 2026.
- Specs: Anker US, C1000X page (A1761111), whose tech specs and purchase option are labelled C1000, read on October 31, 2026; Anker US, C800X (archived March 29, 2026) and Anker’s A1755 datasheet, US and Canada, an Anker document hosted by a dealer. Where the C800X page (1,600W SurgePad) and the datasheet (1,920W surge) differ, we show both.
- Reviewer reports on the C1000: OutdoorGearLab, Kenji Mowrey, May 2025, Trusted Reviews, Simon Handby, January 2024, UK unit, TechRadar, Collin Probst, November 2024, Digital Camera World, Adam Juniper, January 2024, UK unit; on the C800X: ITC.ua, Vladyslav Vasylenko, January 2025, EU unit, MyChooz, Alexander Moiseenko, October 2026, EU unit.
- 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).
1,056Wh expandable to 2,112Wh and 1,800W, against 768Wh and 1,200W. The C800X is no longer sold by Anker US.
Prices checked November 13, 2026 at 8:00 AM EST
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Originally published: November 10, 2026