Anker SOLIX C300X
Power station · C300X. Specs from the manufacturer page (checked ).

The Anker SOLIX C300X is a 288 Wh portable power station with 300 W output and 600 W surge. It recharges to 80% in 50 minutes from a wall outlet and accepts up to 100 W of solar recharging. It uses LFP batteries and carries a 5-year warranty.
Key features
- 300 W continuous output with 600 W surge
- 140 W two-way USB-C fast charging
- Recharges to 80% in 50 minutes from a wall outlet; also charges from solar panels, a car, or the PD 3.1 USB-C port
- Up to 100 W solar recharging
- 10 ms switchover to backup power
- Anker app control over Bluetooth or Wi-Fi
- Emits 25 dB from 3.3 ft away
- Carry strap included on the unit
What it is for
- backup power
- outdoor use in nature
Specifications
| Capacity | 288 Wh |
|---|---|
| Continuous output | 300 W |
| Peak / surge | 600 W |
| Solar input | 100 W |
| Battery chemistry | LiFePO4 |
| Cycle life | 3000 cycles |
| AC charging | Recharge to 80% in just 50 minutes with a wall outlet |
| Warranty | 5 years |
From the Anker SOLIX page. Values the manufacturer does not publish are left out.
How long it runs common appliances
| Appliance | Watts | Runs? | Hours |
|---|---|---|---|
| Refrigerator (with freezer) | 120 W (600 start) | yes | 5.4 h |
| Chest freezer | 100 W (500 start) | yes | 7.6 h |
| 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.
Similar portable power stations
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Anker SOLIX C300X comparisons
- C300X vs BougeRV JuiceGo
- C300X vs Allpowers R600
- C300X vs Vtoman Jump 600X
- C300X vs Bluetti EB3A
- C300X vs Goal Zero Yeti 300
- C300X vs Pecron E300LFP
All 9 comparisons
Connection and wiring
We have not linked an official manual for this model yet; see the Anker SOLIX page.
Error codes and troubleshooting
We have not found an official code table for this model yet.
FAQ
How long will the Anker SOLIX C300X 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 C300X start a sump pump or well pump?
Starting surge matters more than running watts: this unit is rated 600 W peak. 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.