Anker SOLIX C300 DC Runtime Calculator
288 Wh LiFePO4 · DC only, no AC outlet · runs a 10 W Wi-Fi router about 18–21 h on DC
- AC output
- DC only
Specs verified 10 Oct 2026 from ankersolix.com. Some specs are not published or not yet confirmed.
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At a glance
What the SOLIX C300 DC runs
From its 12 V and USB-C ports, 0 of 6 listed devices last their usual hours, the fridge, microwave (1,000 w cooking power), space heater, tv, cpap with humidifier and wi-fi router do not.
- Can't run it
Fridge 123 W
Not available
Needs an AC outlet, and this model has none.
- Can't run it
Microwave (1,000 W cooking power) 1500 W
Not available
Needs an AC outlet, and this model has none.
- Can't run it
Space heater 1500 W
Not available
Needs an AC outlet, and this model has none.
- Can't run it
TV 120 W
Not available
Needs an AC outlet, and this model has none.
- Tight fit
CPAP with humidifier 34 W
6–7 h
On the 12 V or USB-C path.
- Tight fit
Wi-Fi router 10 W
18–21 h
On the 12 V or USB-C path.
Spec sheet
SOLIX C300 DC verified specs
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Our take
What the C300 DC is good at, and what to watch for
KiloHour take Pick it if your gear charges over USB-C or a 12V socket and you want 288Wh in a 6.17 lb case, but it has no AC outlets and no UPS mode.
The SOLIX C300 DC stores 288Wh in LFP cells but has no AC inverter, so everything runs from its DC ports: two 140W USB-C ports that both charge and discharge, a 100W USB-C port, a 15W USB-C port, USB-A and a 120W car socket. Anker's manual caps total output at 300W across all ports and lists a net weight of 6.17 lb (2.8 kg).
Recharging is flexible for a DC unit. With both 140W USB-C ports in use, the manual lists up to 280W of USB-C charging, so it refills from USB-C wall chargers rather than an AC cable. It also takes a car charging cable, or 11 to 28V panels for up to 100W of solar through XT60.
Choosing among the 288Wh SOLIX models comes down to AC. The C300 and C300X share the same capacity but add a 300W AC inverter with 600W SurgePad and a 10 ms UPS mode, and the C300 weighs 9.1 lb with a five-year warranty. The C300 DC drops the inverter, is about a third lighter and carries a three-year warranty.
It suits campers and travelers whose gear charges over USB-C or a 12V socket, such as phones, laptops, cameras and 12V lights. Anker's comparison table lists no UPS mode for this model, so it is not meant to sit between a wall outlet and a router. Anything with a wall plug needs the C300 instead.
Sources: ankersolix.com, cdn.shopify.com, ankersolix.com, ankersolix.com
Same brand
Other Anker SOLIX models
| Model | Capacity | AC output | Solar input | Weight |
|---|---|---|---|---|
| SOLIX C200 DCSmaller | 192 Wh (−96 Wh) | DC only | 100 W | 4.2 lb |
| SOLIX C1000 Gen 2Larger | 1,024 Wh (+736 Wh) | 2,000 W | 600 W | 24.9 lb |
| SOLIX C300Same capacity | 288 Wh | 300 W | 100 W | 9.1 lb |
Alternatives
Other brands near 288 Wh
| Model | Capacity | AC output | Solar input | Weight |
|---|---|---|---|---|
| EcoFlow TRAIL 300 DCSame capacity | 288 Wh | DC only | 110 W | 5.69 lb |
| Jackery Explorer 300 v2Same capacity | 288 Wh | 300 W | Not published | 8.16 lb |
| Goal Zero Yeti 300+3% capacity | 297 Wh (+9 Wh) | 350 W | 200 W | 13.7 lb |
FAQ
SOLIX C300 DC questions
Answers use the same published specs and labelled assumptions as the calculator.
Does the C300 DC have an AC outlet?
No. It has no inverter, so it only powers 12 V and USB devices, up to 140 W from one USB-C port. A CPAP needs its maker's DC adapter to run from it.
How long will the C300 DC last?
288 Wh stored, about 259 Wh of it usable at the typical estimate.
What is the C300 DC solar input?
Its limit is 100 W, below a 200 W panel, so extra panel watts are clipped. Expect about 0.8 days of 5-hour sun to refill it. Panels are assumed to deliver 75% of their rating.
How heavy is the Anker SOLIX C300 DC?
6.17 lb (2.8 kg). That is about 47 Wh per pound.