The Anker SOLIX C1000 Gen 2 is a roughly 1 kWh portable power station built around one headline claim: it recharges from a wall socket faster than anything else its size. Anker announced it on 19 August 2025 and put it on sale on 8 September 2025, according to the company's launch press release. Since then it has been reviewed widely. This piece brings together the maker's specifications and what named independent reviewers reported, so readers can judge where it fits. NerdBible has not tested the unit; every measurement below is attributed to the publication that made it.
What it is and who it is for
The C1000 Gen 2 sits in the middle of the power station market: big enough to run a fridge, a coffee maker or a work setup through an outage, small enough to carry to a campsite. It uses lithium iron phosphate (LiFePO4) cells and replaces the original SOLIX C1000. Anker pitches it at outdoor trips, home backup and off-grid use. The reviews suggest it suits people who want one unit for weekend camping and short power cuts, who value fast recharging and low weight, and who do not need to add capacity later.
The maker's specifications
The figures below come from Anker's US product page and press release.
| Specification | Anker's figure |
|---|
| Capacity | 1,024 Wh, LiFePO4 |
| AC output | 2,000 W continuous, 3,000 W peak |
| AC input | 1,200 W standard; 1,600 W in UltraFast mode (enabled in the app) |
| Recharge time | 0 to 100% in 49 minutes in UltraFast mode |
| Solar input | 600 W max; 11 to 28 V at 8.2 A, or 29 to 60 V at 14.5 A |
| Car outlet | 12 V, 10 A, 120 W |
| USB | 140 W USB-C; USB-A at 12 W, sharing 20 W with one USB-C port |
| UPS switchover | 10 ms |
| Cycle life | Over 80% capacity after 4,000 cycles |
| Weight and size | 24.9 lb; 15.12 × 8.19 × 9.61 in |
| Expandable capacity | No |
Anker also says the unit was certified by Guinness World Records on 14 August 2025 as the "Fastest Recharging Portable Power Station (1kWh)." The US model has five AC outlets, according to MacRumors and How-To Geek, which also count two 140 W USB-C ports, a third lower-power USB-C port and one USB-A port. The UK version has four AC outlets, The Technology Man reported.
What reviewers praised
Recharge speed
This is the claim reviewers checked most, and it largely held up. The Technology Man, reviewing on 4 November 2025, wrote that with UltraFast mode on, the unit "got to 80% charge in just 36 minutes" and managed a full charge "from completely flat in 47 minutes," against 53 minutes for the fastest rival 1 kWh unit he had tested, DJI's Power 1000 V2. MacRumors (11 December 2025) reported a full recharge in 49 minutes from a household socket, drawing "around 1200W," and noted that the 1,600 W rate has to be enabled. OutdoorGearLab recorded "an average charging rate of 1,097 Wh/hr" with a standard recharge of 56 minutes.
Usable capacity
No power station delivers its full rated capacity, because the inverter and electronics use some of it. OutdoorGearLab "measured 890 Wh out of its advertised 1,024 Wh," or 87%, which it described as well above average. The Technology Man ran a 1 kW heater until the unit shut off and found it "used 907 Wh. That's 89% efficiency." Both are useful planning figures: expect roughly 890 to 900 Wh at the socket rather than 1,024.
Size, weight and display
OutdoorGearLab said it holds "one of the best power-to-weight ratios of any power station" it had handled, and The Technology Man called it the lightest 1,024 Wh unit he had tested, at 11.3 kg. Several reviewers singled out the screen: OutdoorGearLab rated the control panel "one of the cleanest and most intuitive" it had used, and MacRumors found the runtime estimate on the display accurate for a 67 W laptop.
Standby and the inverter
MacRumors charged the unit fully, "left it powered off for a month, and it remained at 100 percent." The Technology Man ran a 2,000 W fan heater, a 1,600 W hair dryer and a portable air conditioner, and an 1,800 W mitre saw. The Gadgeteer (7 December 2025), which used it to power a stall at pop-up events, praised its build quality and reported "nearly silent operation" in that use.
Where reviewers found limits
Fan noise under load
The Gadgeteer's quiet experience came with light loads. At full charging speed or high output, other reviewers heard the fans clearly. MacRumors wrote: "I wouldn't be able to sleep with the fans on that high." OutdoorGearLab said that near maximum wattage "the fan noise gets frustratingly loud," noting the same complaint about the first generation. The Technology Man measured "around 42dB one metre away," which he did not consider particularly loud, but said the changing fan speed makes it more noticeable; he found that limiting charging to 200 W in the app switched the fans off.
What the second generation removed
The most consistent criticism is about what Anker took away. How-To Geek, in a review dated 2 November 2025, listed the changes from the first C1000: no built-in LED light, one fewer AC outlet, no option to add an expansion battery, and capacity "dropping from 1,056Wh on the first generation to 1,024Wh." OutdoorGearLab and The Gadgeteer both said they missed the light, and OutdoorGearLab said the lost expansion option was a feature it had found valuable. Anker's own comparison table on the product page confirms the first model was expandable and had a light bar, and the new one has neither.
How-To Geek still judged the Gen 2 "a net positive upgrade," pointing to the doubled 140 W USB-C ports, the higher 2,000 W output (up from 1,800 W) and a UPS switchover that fell "from 20ms to 10ms."
Overload behaviour and limits of the inverter
The Technology Man flagged a design choice he disliked: between 2,000 W and 2,400 W, Anker's SurgePad feature keeps a device running by lowering the voltage, and unlike some rivals, "Anker doesn't give you that option" to turn it off. He advised caution with sensitive electronics. He also found that "it couldn't run my 1800W table saw," whose induction motor draws a large start-up current, and measured the AC inverter's idle draw at "around 17W" when its automatic power saving was disabled.
Solar input in practice
The 600 W solar figure needs the right panels. The Technology Man explained that the lower voltage range is capped at 8.2 A, so typical lower voltage folding panels in parallel would not deliver much more than about 200 W; he reached the 600 W maximum only when supplying 40 V and above. Anyone planning a solar setup should match panel voltage to that window.
Ports
MacRumors noted that with all AC outlets on the front, "spacing could be an issue if you want to plug in multiple devices with large plugs." OutdoorGearLab, by contrast, said it appreciated the outlet spacing, so this may depend on the plugs you use.
Firmware and app
The unit connects to Anker's app over Wi-Fi or Bluetooth, and the press release lists "remote monitoring and firmware updates" among its features. UltraFast charging must be switched on in the app, according to Anker's product page, and the app also sets charge and discharge limits and a time-of-use schedule. MacRumors reported a hiccup: "For several days, the firmware update kept failing, but it worked flawlessly later on." The Technology Man said he hoped Anker would use a firmware update to let owners switch off the SurgePad behaviour described above; none of the other reviews cited here mentioned firmware problems.
Launch price and what reviewers paid attention to
Anker set the MSRP at $799 in its 19 August 2025 press release, with a launch price of $429 for customers who registered by 8 September. Reviewers repeatedly noted it selling well below list: How-To Geek said it "is often found on sale for under $500" and wrote, "At the $799 list price, I'm not quite as much of a fan," and MacRumors listed it at $372 when its review was published in December 2025. Prices move often, so check current listings rather than relying on these figures.
Alternatives reviewers mentioned
- Anker SOLIX C1000 (first generation): slightly larger capacity at 1,056 Wh, a built-in light and an expansion battery option, but 1,800 W output and a slower recharge, according to Anker's comparison table.
- DJI Power 1000 V2: The Technology Man described its inverter as more powerful and timed its full recharge at 53 minutes.
- EcoFlow Delta 2 and Bluetti Elite 100 V2: The Technology Man noted the Anker's inverter is 200 W more powerful than both; he found the Delta 2's idle drain marginally lower.
Verdict: who should consider it
Across five independent reviews, the picture is consistent. (MacRumors and The Gadgeteer disclosed that Anker supplied their review units.) The C1000 Gen 2 does what Anker said it would on recharge speed, its measured usable capacity is good for its class, and reviewers found it light and easy to live with. Its weaknesses are just as consistent: loud fans at full tilt, a non-defeatable voltage-lowering surge mode, and the loss of the light and expansion battery that the first model offered.
Consider it if you want a single 1 kWh unit for camping and short outages, value very fast mains recharging before a storm or a trip, and can live with roughly 900 Wh of usable energy. Look elsewhere if you expect to grow capacity later, need it to run quietly at high loads in a bedroom, or want to start large induction motors such as table saws. Given how often reviewers saw it below list price, it makes most sense when bought on sale.
