Portable power station · Anker SOLIX
Anker SOLIX C300: 288 Wh, 300 W
Anker SOLIX C300: 288 Wh LiFePO4, 300 W continuous AC. Its 600 W surge is tied to SurgePad. What small loads it runs and for how long.
Which version: Not the C300 DC (same 288Wh battery, no AC outlets) or the C300X.
Maker list price $429.99 (2026-10-31, source; schema.org Offer price in ankersolix.com page source (visible price is rendered by JavaScript); confirm against the live page)
1.49 $/Wh
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The C300 is Anker's compact 288 Wh station with AC outlets. Its sibling, the C300 DC, has the same 288 Wh battery but no AC outlets at all — check which one a listing shows before you buy. A C300X is a third, separate variant.
What 300 W covers
Anker rates AC output at 300 W. The product page also prints "600W surge", but Anker's FAQ ties the 600 W to SurgePad, a mode for resistive loads, so do not count on it to start a motor. Within 300 W you can run a Wi-Fi router (42 W), a Starlink Standard kit (100 W) or a laptop (65 W). A full-size top-freezer refrigerator is out: it draws 360 W just running. The compact refrigerator runs at 156 W but needs 540 W to start, which only the disputed surge figure would cover.
Using the 0.85 factor explained on the methodology page, 288 Wh × 0.85 ÷ 42 W gives about 5.8 hours for the router, and 288 Wh × 0.85 ÷ 100 W about 2.4 hours for the Starlink kit.
The LiFePO4 battery is rated for 3,000+ cycles to 80 % capacity. That threshold matters when you compare with brands that count to 70 % (how makers define cycle life).
Notes from the maker's pages
The AC outlet count of 3 comes from a spec card that labels the sockets NEMA 6-20, a 240 V type — almost certainly a data-entry error on the page. Wall charging reaches 80 % in 50 minutes. The manual gives a UPS switch-over under 10 ms, and Anker states 25 dB from 3.3 ft.
Add your appliances to the calculator to check your own load against the C300.
Specifications
Each figure links to the manufacturer or retailer page it was read from. “Not published” means the maker's page does not state it.
| Battery capacity | 288 Wh source |
|---|---|
| Cell chemistry | LiFePO4 source (page: 'LFP batteries') |
| Cycle life | 3,000 cycles to 80 % of original capacity source (product page spec card 'Battery Lifespan to 80%: 3000+ Cycles'; landing page: 3,000 charge cycles) |
| AC output, continuous | 300 W source |
| AC output, peak (boost mode, resistive loads only) | 600 W source (page: '300W (600W surge)'; FAQ ties 600W to SurgePad Maker ties this figure to a boost mode for resistive loads (SurgePad / Power Lifting); not used as a motor-start limit by the calculator.) |
| AC outlets | 3 source (from the product page spec card ('3×'; the socket type printed there, NEMA 6-20, is a 240V type and looks like a data error)) |
| USB-C, max per port | 140 W source |
| USB-C ports | 3 source (C1 15W, C2 140W in/out, C3 140W) |
| USB-A ports | 1 source (12W) |
| 12 V car port | Yes source (12V 10A) |
| Solar input, max | 100 W source |
| AC input, max | 330 W source (380W in bypass mode; 140W USB-C input) |
| Wall charge time | 0.83 h to 80 % source (maker: 80% in 50 minutes from a wall outlet) |
| UPS switch-over | 10 ms source (manual: UPS <10ms) |
| Maker's runtime factor | not published |
| Weight | 9.1 lb source |
| Dimensions | 6.5 × 6.3 × 9.5 in source |
| Operating temperature | -4 to 104 °F source (discharge; charge 32–104 °F) |
| Noise | 25 dB source (maker: 25 dB from 3.3 ft away) |
| App control | Yes source (Bluetooth or Wi-Fi) |
| Expandable with extra batteries | not published |
| Warranty | 5 years source |
| Released | not published |
Frequently asked questions
Can the Anker C300 run a refrigerator?
Not a full-size one: the top-freezer refrigerator draws 360 W running, above the 300 W rating. The compact refrigerator runs at 156 W but needs 540 W to start, and Anker ties the C300's 600 W figure to SurgePad, so a start is not assured.
Can it run a CPAP?
The CPAP entry in our database (ResMed AirSense 10 AutoSet) is within the 300 W rating. At its 34 W average with humidifier and heated tube, 288 Wh × 0.85 ÷ 34 W gives about 7.2 hours. These are planning figures only — confirm with the device manufacturer before relying on a power station for this device.
What is the difference between the C300 and the C300 DC?
Same 288 Wh LiFePO4 battery. The C300 has AC outlets (300 W) and AC charging; the C300 DC has neither and charges only via USB-C, solar or car.
How fast does it charge?
Anker gives 80 % in 50 minutes from a wall outlet, at up to 330 W AC input.
Sources
- Anker SOLIX US — C300 product page (features, FAQ, page spec card, schema.org offer) (accessed 2026-10-31)
- Anker SOLIX US — C300 DC / C300 landing page (accessed 2026-10-31)
- Anker SOLIX — C300 (A1722) US user manual PDF linked from the product page, Specifications (accessed 2026-10-31)
Data entered 2026-10-31. Page updated 2026-10-31.