C1000X Gen 2
- you keep a fridge running through an outage
- you run a microwave or a kettle: 2,000W
- you refill from 600W of solar
C300X
- you carry it: 9 lb
- a router or CPAP is the job
- it costs $400 less
Prices and stock checked by our price engine on November 5, 2026 at 3:59 AM EST. Each product is rechecked several times a day; the time refreshes when you load the page.
One runs the kitchen through a blackout; the other keeps the router up and fits in a backpack.
The Anker SOLIX C1000X Gen 2 stores 1,024Wh of LFP and runs 2,000W, with a 49-minute wall refill in UltraFlash mode and 600W of solar. The Anker SOLIX C300X stores 288Wh and runs 300W from three outlets, refills to 80% in 50 minutes and takes 100W of solar, at 9 lb per Anker’s datasheet. Both switch to battery in 10ms. For a router, a CPAP for part of a night and USB gear on trips, the C300X is enough; for a fridge, a microwave or a full evening without power, it’s the C1000X Gen 2. Anker US listed the C300X as sold out on October 31, 2026.
Below: what separates them with numbers, a 20-second calculator for your own gear, seven modeled situations, a third option, and what we could and could not verify.
The C1000X Gen 2 costs $400 more on Anker’s listed prices for 3.6 times the battery, 2,000W instead of 300W and six times the solar input. The C300X answers with a carry-in-one-hand box and the same 10ms UPS. Anker US listed the C300X as sold out on October 31, 2026.
- you keep a fridge going
- you run more than 300W
- you refill from 600W of solar
- you carry it: 9 lb
- a router or CPAP is the job
- you want it for $400 less
The five differences that decide it
The five gaps that decide the purchase, with the better spec for most buyers flagged. Both use LFP cells, switch to battery in 10ms, connect to the Anker app and carry a 5-year warranty; neither lists a battery port. Both Anker US pages are short, so some figures come from Anker’s C300X datasheet.
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 870Wh usable on the C1000X Gen 2 and 245Wh on the C300X; no independent test has measured either.
Appliance for appliance, the C1000X Gen 2 lasts 3.6 times as long as the C300X.
Same appliance, same watts: the gap is always the size of the battery.Get our Black Friday alerts for Anker SOLIX
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The price gap, in numbers
The Anker SOLIX C1000X Gen 2 costs $400 more than the Anker SOLIX C300X and adds 736Wh: that is $0.54 per extra Wh, against $1.04 per Wh for the C300X.
Prices refresh daily from Anker US.Per watt-hour stored, the bigger battery is usually the better buy, and it is rated for 1,000 more cycles. The C300X’s lower ticket buys portability, not value per Wh. Anker US listed the C300X as sold out on October 31, 2026; the engine shows the last price it read, and prices move often.
The third option: the Anker SOLIX C300 at $429.99
Anker SOLIX C300: $429.99 today
If the C300X is the size you want, the C300 was in stock at Anker US on October 31, and Anker’s figures for it match the C300X’s on the points that matter here: 288Wh, 300W from three outlets with 600W SurgePad, two 140W and one 15W USB-C, a USB-A, a 12V socket, a 10ms UPS, a 330W charger to 80% in 50 minutes and 100W of solar, with 5 years of warranty. Anker lists it at 9.1 lb, with a light bar where the C300X has a stretchable camping light. Our C300X vs C300 vs C300 DC comparison covers the whole family. See the C300 at Anker.
Seven modeled situations, worked out
Same formula as the calculator above: 85% of the rated capacity, no extra battery. The fridge averages 60W, about 525kWh a year.
24-hour outage, essentials only
The C1000X Gen 2 covers an evening and a night; the C300X under three hours. Neither covers a full day on its own.
Full-size fridge through an outage
About 14 hours on the C1000X Gen 2, about 4 on the C300X. Check the fridge’s startup draw against the C300X’s 600W surge rating before relying on it.
A 1,100W microwave
Only the C1000X Gen 2. The C300X stops at 300W; SurgePad lowers the power of heating loads, but a microwave isn’t one.
Wi-Fi router through an outage
Both switch to battery in 10ms, per Anker, fast enough that the router doesn’t reboot. The C300X keeps it up for most of a day, the C1000X Gen 2 for about three.
CPAP, one night
The C1000X Gen 2 covers more than two nights. The C300X covers about six hours, short of a full night.
Refill from solar, each at its maximum
The C1000X Gen 2 refills faster despite holding 3.6 times as much, because it takes six times the solar. The C300X stops at 28V: wire panels in parallel.
Carrying it
Anker’s datasheet gives the C300X 9 lb. The C1000X Gen 2 page gives no weight, only that it is 11% lighter than comparable units; a 1kWh station is a two-hand carry.
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.
C1000X Gen 2 and C300X weight, dimensions and full specifications
Weight: Anker publishes none for the Anker SOLIX C1000X Gen 2; 9 lb for the C300X, per Anker’s datasheet. Dimensions: none published for the C1000X Gen 2; 6.5 × 6.3 × 9.5 in for the C300X. Everything else is in the sheet below.
Anker SOLIX C1000X Gen 2 and Anker SOLIX C300X full specifications
Every published figure for both units, grouped. Green marks the better value.
What’s in the box
C1000X Gen 2
- C1000X Gen 2 power station1,024Wh
- AC charging cable
- Car charging cable
- Quick start guide, safety and warranty card
C300X
- C300X288Wh, 9 lb
- AC charging cable80 cm, per the datasheet
- Car and solar cables sold separatelyper Anker US
C1000X Gen 2 contents from Anker US; C300X contents from Anker US and its datasheet.
07 · ChargingHow fast each one refills
Shorter bar, faster refill. Each row is scaled to its slower unit.
C1000X Gen 2: recharges from AC, solar, a car outlet, a generator or an alternator, per AnkerC300X: recharges from AC, solar, a car outlet or the PD 3.1 USB-C port, per Anker
Our solar times assume panels deliver 70% of their rating; the brands’ figures assume ideal sun.
Every port, side by side
C1000X Gen 2
C300X
Practical consequence: Anker itemizes none of the C1000X Gen 2’s 9 ports; its product photo shows four AC outlets. The C300X has three AC outlets, three USB-C, one USB-A and a 12V socket, per Anker’s datasheet.
09 · NoiseNoise: C1000X Gen 2 vs C300X
Both are quiet by Anker’s figures: 0 to 20dB under 200W for the Anker SOLIX C1000X Gen 2, 25dB from 3.3 ft for the Anker SOLIX C300X. No published test has measured either.
Anker’s figures; no independent measurement found.Every figure we found, with its source
Measured by a tester Brand figure
- Charge during the day, or lower the charging speed in the Anker app overnight.
Cold and heat: C1000X Gen 2 vs C300X
The Anker SOLIX C300X charges from 32°F to 104°F and runs from −4°F to 104°F, per Anker’s datasheet. Anker publishes no range for the Anker SOLIX C1000X Gen 2.
Figures from Anker’s A1723 datasheet; none published for the C1000X Gen 2.- Charge either one indoors in winter: the C300X doesn’t charge below 32°F, and Anker publishes no range for the C1000X Gen 2.
App, UPS and smart features
Same 10ms UPS and the Anker app on both: the Anker SOLIX C1000X Gen 2 adds a 1,500W fast-charging mode; the Anker SOLIX C300X charges at 330W.
Neither page lists a battery port.Green zone: a switch under about 16ms, which most desktop PCs ride through without restarting.
How does the app connect? The Anker SOLIX C300X connects over Bluetooth or Wi-Fi; the Anker SOLIX C1000X Gen 2 page mentions remote monitoring in the Anker app without naming the connection.
Can you add a battery later? Neither the Anker SOLIX C1000X Gen 2 nor the Anker SOLIX C300X page lists a battery port.
Does it work as a UPS? Both switch to battery in 10ms per Anker, fast enough for a router or a CPAP.
Does it have a fast charging mode? The Anker SOLIX C1000X Gen 2 reaches 49 minutes with UltraFlash switched on in the Anker app. The Anker SOLIX C300X charges at 330W and reaches 80% in 50 minutes.
Warranty and support
5 years on both: the Anker SOLIX C300X per its Anker US page, the Anker SOLIX C1000X Gen 2 once registered, per Anker’s registration page.
Same term; the C1000X Gen 2 is rated for 1,000 more cycles.Subject to each brand’s warranty terms and eligibility.
Anker rates the C1000X Gen 2 at 4,000 cycles to 80% capacity, and its datasheet rates the C300X at 3,000+, about 11 and 8 years at one full cycle a day. Calendar aging and heat also reduce capacity, so read the ratings as ceilings.
- Register the C1000X Gen 2 with Anker when it arrives: Anker’s registration page says that activates the 5-year coverage.
- Keep proof of purchase for either one.
What reviewers report
We have not lab-tested these two units, and we found no published hands-on review of either the C1000X Gen 2 or the C300X. Reviews of their sibling models are not carried over: Anker hasn’t documented how the X versions differ inside.
C1000X Gen 2: no verifiable independent test foundC300X: no verifiable independent test found
Practical limits before you buy
- The C300X stops at 300W. A microwave, a kettle, a coffee maker or a hair dryer won’t run on it.
- Anker US listed the C300X as sold out on October 31, 2026. The C300 below was in stock.
- Anker doesn’t itemize the C1000X Gen 2’s ports or publish its weight. Count the outlets on the unit you buy if you need more than four.
- The C1000X Gen 2’s 49-minute refill needs UltraFlash, switched on in the Anker app.
- The C300X’s solar input stops at 28V. Wire panels in parallel, not in series.
- The C300X ships without solar and car cables, per Anker US.
- Neither page lists a battery port. 1,024Wh and 288Wh are the ceilings.
- C1000X Gen 2, per its US documentation: The 0-20dB quiet claim applies only under 200W load.
- C1000X Gen 2, per its US documentation: Fast AC recharging uses a 1,500W AC input and must be activated in the app to reach 49 minutes.
- C1000X Gen 2, per its US documentation: Solar input up to 600W; full solar recharge about 1.8 hours in optimal sun.
- C1000X Gen 2, per its US documentation: 2,000W output across 9 ports, 2,400W surge support; battery keeps over 80% after 4,000 cycles.
- C300X, per Anker US and its A1723 datasheet: USB-C1 and USB-A share 20W when used together; USB-C2 is the only USB-C input.
Frequently asked questions
What is the difference between the Anker C1000X Gen 2 and the C300X?
Size. The C1000X Gen 2 stores 1,024Wh and runs 2,000W, with 600W of solar. The C300X stores 288Wh and runs 300W from three outlets, with 100W of solar, at 9 lb per Anker’s datasheet. Both have a 10ms UPS, LFP cells and the Anker app.
Which is cheaper?
The Anker SOLIX C300X lists $400 less: $299.99, against $699.99 for the Anker SOLIX C1000X Gen 2. Anker US listed the C300X as sold out on October 31, 2026.
Can the C300X run a fridge?
A fridge averaging 60W for about 4 hours, if its startup draw stays within the 600W surge rating. The C1000X Gen 2 runs the same fridge for about 15 hours.
Can the C300X run a microwave?
No. It stops at 300W. The C1000X Gen 2 runs a 1,100W microwave for about 47 minutes.
Do both work as a UPS?
Yes. Both switch to battery in 10ms, per Anker.
Is the C300X in stock?
Anker US listed it as sold out on our October 31, 2026 check. The C300 carries the same 288Wh and 300W figures on Anker’s pages.
How much do they weigh?
9 lb for the C300X, per Anker’s datasheet. Anker publishes no weight for the C1000X Gen 2, only that it is 11% lighter than comparable units.
What warranty do they have?
5 years on both: the C300X per its Anker US page, the C1000X Gen 2 once registered, per Anker’s registration page.
Related comparisons and reviews
How we compared and sources
Research-based comparison. We have not physically tested these two units. Specs come from the Anker US pages of both models, Anker’s US registration page, and Anker’s A1723 datasheet for the C300X, because the US pages have no full spec table. Checked on October 31, 2026.
- Specs: Anker US, C1000X Gen 2 (A1765111), Anker’s US warranty registration page, Anker US, C300X (A1723111) and Anker’s A1723 datasheet, an Anker document hosted by a US dealer (archived copy), read on October 31, 2026.
- Neither US page has a spec table. The C1000X Gen 2’s four AC outlets are counted on Anker’s product photo; its weight, size and temperature range are not published. The C300X’s weight, size, outlet count, cycle rating and temperature range come from Anker’s datasheet.
- 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).
1,024Wh and 2,000W against 288Wh and 300W. Same 10ms UPS; the C300X weighs 9 lb.
Prices checked November 5, 2026 at 3:59 AM EST
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Originally published: November 5, 2026