Anker SOLIX C300 DC
Power station. Specs from the manufacturer page (checked ).

The Anker SOLIX C300 DC is a 288 Wh portable power station with 300 W output and two 140 W two-way USB-C fast charging ports. It can be recharged from an 18 W or higher USB-C wall charger, from solar panels up to 100 W, or from a car.
Key features
- Two 140 W two-way USB-C fast charging ports
- First activation requires recharging with an 18 W or higher USB-C wall charger, and only the USB-C2 and USB-C3 ports can be used
- Solar recharging up to 100 W; Anker 100 W or 60 W Anker Solar Panel recommended
- Not compatible with Anker SOLIX PS30 (or other 5V~3A USB-C panels), PS200, or PS400
- Fast recharge to 80% through the dual PD 3.1 USB-C port (time printed as 'an hour minutes'); solar or car charging also available
- Carry strap sold separately
Specifications
| Capacity | 288 Wh |
|---|---|
| Continuous output | 300 W |
| Solar input | 100 W |
From the Anker SOLIX page. Values the manufacturer does not publish are left out.
What is in the box
- Anker SOLIX C300 DC Portable Power Station
- USB-C to C Charging Cable
- Safety Manual
- Warranty Info
How long it runs common appliances
| Appliance | Watts | Runs? | Hours |
|---|---|---|---|
| Refrigerator (with freezer) | 120 W (600 start) | surge too high | — |
| Chest freezer | 100 W (500 start) | surge too high | — |
| CPAP (no humidifier) | 35 W (40 start) | yes | 6.5 h |
| Gas boiler (pump + controls) | 120 W (300 start) | yes | 3.8 h |
| Wi-Fi router + modem/ONU | 12 W | yes | 19 h |
| Starlink (standard dish) | 60 W (100 start) | yes | 3.8 h |
| TV 50" | 75 W | yes | 3.0 h |
| Sump pump 1/2 HP | 920 W (2150 start) | surge too high | — |
| Well pump 1/2 HP | 880 W (2000 start) | surge too high | — |
| Space heater 1500 W | 1500 W | surge too high | — |
Assumes 88 % inverter efficiency, 90 % usable capacity and typical duty cycles. Build your own list in the calculator.
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Connection and wiring
Follow the diagrams in the Anker SOLIX manual.
Open the Anker SOLIX manual (PDF) →
Error codes and troubleshooting
| Code | Meaning | What to do | Manual page |
|---|---|---|---|
| High-Temperature Alert | This LCD icon appears when the power station is overheating. | Stop using the power station and let it cool down until the icon disappears. | 2 |
| Low-Temperature Alert | This LCD icon appears when the power station is too cold to operate safely. | Stop using the power station until the icon disappears. | 2 |
| Overload Warning | This LCD icon appears when a port is overloaded. The port is turned off to avoid damage. | Remove the device causing the overload. | 2 |
From the Anker SOLIX manual. All 3 C300 DC / C300 / C1000 codes →
FAQ
How long will the Anker SOLIX C300 DC run a refrigerator?
About 5 hours for a typical 120 W refrigerator that runs 35 % of the time, after inverter and depth-of-discharge losses.
Can the Anker SOLIX C300 DC start a sump pump or well pump?
Starting surge matters more than running watts: this unit is rated 300 W output (no separate peak published). That is below a typical 1/2 HP sump pump start (about 2150 W); check your pump label. Use the calculator with your exact pump.