Anker SOLIX C300: what it runs and for how long
The Anker SOLIX C300 is a 288 Wh LiFePO4 portable power station with a 300 W inverter (600 W surge). It meets our requirements for camping, UPS use with computers and routers and a LiFePO4 station under $500.
What can the Anker SOLIX C300 run, and for how long?
Combine loads in the Anker SOLIX C300 runtime calculatorOn a full charge it runs a 12V compressor fridge for about 23 h and a CPAP machine for about 4.4 h.
What can’t the Anker SOLIX C300 run?
The Anker SOLIX C300 can't run a refrigerator or a chest freezer (start-up ~2,200 W, limit 600 W); a microwave or a well pump (needs 1,000 W, inverter is 300 W); a space heater or an electric kettle (needs 1,500 W, inverter is 300 W).
Who is the Anker SOLIX C300 a good fit for?
The Anker SOLIX C300 meets every requirement for 3 of the 12 uses we filter for.
- ✓Camping
- ✓UPS use with computers and routers
- ✓A LiFePO4 station under $500
- ✕Carrying a CPAP on trips (light enough to pack) · needs capacity ≥ 500 Wh; the Anker SOLIX C300 has 288 Wh
- ✕Fast solar charging · needs solar input ≥ 800 W; the Anker SOLIX C300 has 100 W
- ✕Balcony solar and apartments · needs solar input ≥ 400 W; the Anker SOLIX C300 has 100 W
Can you add batteries to the Anker SOLIX C300?
No. Anker SOLIX's spec page lists the Anker SOLIX C300 as not expandable, so its 288 Wh is the most it will ever hold.
Can the Anker SOLIX C300 work as a UPS?
Anker SOLIX lists a switchover time of 10 ms for the Anker SOLIX C300, inside the 20 ms gap that the ITI (CBEMA) reference says typical computer equipment should ride through.
How fast does the Anker SOLIX C300 recharge?
From a wall outlet it charges at up to 330 W; Anker SOLIX doesn't publish a full-charge time. From solar it needs about 3.8 hours of strong sun at its 100 W solar limit, with panels delivering 75% of their rating.
What are the Anker SOLIX C300's full specifications?
These figures come from Anker SOLIX's official US page, checked 2026-10-12. "Not published" marks specs Anker SOLIX doesn't publish.
| Capacity | 288 Wh |
|---|---|
| Battery chemistry | LiFePO4 |
| Rated cycles | 3,000 3,000+ cycles, rated to 80% capacity. |
| AC output (continuous) | 300 W |
| AC surge | 600 W The 600 W surge figure is SurgePad mode. |
| AC outlets | 3 Anker's page lists three NEMA 6-20 outlets, which may be a labeling error. |
| Max USB-C output | 140 W |
| Max solar input | 100 W |
| Max AC charging input | 330 W |
| AC charge time (fastest mode) | Not published Anker states 80% in 50 minutes and no 0-100% time. |
| Expandable | No |
| Max with extra batteries | Not published |
| UPS switchover | 10 ms |
| Weight | 9.1 lb |
| Dimensions | 6.46 × 6.34 × 9.45 in |
| List price | $329.99 |
How does the Anker SOLIX C300 rank against other Under 500 Wh power stations?
Among the 9 current under 500 Wh models, the Anker SOLIX C300 is in the top third for UPS switchover and in the bottom third for AC charging speed and Wh per list dollar.
| Spec | Anker SOLIX C300 | Rank in band | vs band median | vs band leader |
|---|---|---|---|---|
| Capacity | 288 Wh | 4th of 9 | level | -42% vs Goal Zero Yeti 500 |
| AC output | 300 W | 5th of 9 | level | -50% vs EcoFlow RIVER 3 Plus |
| Surge | 600 W | 3rd of 8 | level | -50% vs EcoFlow RIVER 3 Plus |
| Solar input | 100 W | 6th of 8 | -35% | -55% vs EcoFlow RIVER 3 Plus |
| AC charging | 330 W | 7th of 9 | -13% | -40% vs Jackery Explorer 240 v2 |
| Rated cycles | 3,000 | 4th of 9 | level | -25% vs Jackery Explorer 240 v2 |
| Weight | 9.1 lb | 5th of 9 | level | +127% vs BLUETTI Elite 10 Mini |
| UPS switchover | 10 ms | 1st of 6 | level | level vs EcoFlow RIVER 3 Plus |
| Wh per list $ | 0.87 | 8th of 9 | -14% | -25% vs EcoFlow RIVER 2 |
Who should not buy the Anker SOLIX C300?
Skip the Anker SOLIX C300 if any of these describe you; each comes from its published specs.
- You rely on solar. Even at its full 100 W solar input it needs about 2.9 hours of strong sun to refill, slower than most models its size. The EcoFlow RIVER 3 Plus needs about 1.3 hours at its limit.
- You may want more battery later. The Anker SOLIX C300 isn't listed as expandable. The EcoFlow RIVER 3 Plus (286 Wh) accepts extra batteries.
- You want to run a kettle, microwave or space heater. Its 300 W inverter is below the 1,000 W or more our cited figures give for each of them. The BLUETTI Pioneer Na delivers 1,500 W.
How long does the Anker SOLIX C300 last at different loads?
About 245 Wh reaches the AC outlets, so a steady 100 W load runs for about 2.4 h and a load at its full 300 W rating for about 49 minutes.
| Steady AC load | Runtime from full |
|---|---|
| 25 W | 9.8 h |
| 50 W | 4.9 h |
| 100 W | 2.4 h |
| 200 W | 1.2 h |
| 300 W | 49 min |
What does the Anker SOLIX C300 cost per kWh over its rated life?
About $0.38 per kWh of storage at list price, if you use all 3,000 rated cycles. The median for under 500 Wh models is $0.31 per kWh, so the Anker SOLIX C300 is more expensive over its rated life.
Rated life energy = 288 Wh × 3,000 cycles ≈ 864 kWh. List price $329.99 ÷ 864 kWh ≈ $0.38.
How many hours of sun does the Anker SOLIX C300 need to refill?
With panels delivering 75% of their rating (our calculator's default), the Anker SOLIX C300 needs the hours of strong sun below. Its 100 W solar limit caps the charge rate, so panels beyond about 133 W add nothing in strong sun.
| Panels | Charge rate | Sun hours to refill |
|---|---|---|
| 100 W of panels | 75 W | 3.8 h |
| 200 W of panels | 100 W | 2.9 h |
| 400 W of panels | 100 W | 2.9 h |
| 800 W of panels | 100 W | 2.9 h |
What can the Anker SOLIX C300 run at the same time?
The Anker SOLIX C300 can carry 2 of the 10 common pairs we check at once, with the runtimes below. It can't carry refrigerator + wi-Fi router / modem, refrigerator + chest freezer, refrigerator + microwave oven, refrigerator + electric kettle, window air conditioner + refrigerator, sump pump + refrigerator, space heater + wi-Fi router / modem and microwave oven + electric kettle: together they pass its running or start-up limit.
| Together | Runtime from full |
|---|---|
| CPAP with heated humidifier + wi-Fi router / modem | 3.2 h |
| TV + wi-Fi router / modem | 1.7 h |
Which Anker SOLIX C300 specs are unpublished or conditional?
Anker SOLIX publishes every spec we track for the Anker SOLIX C300.
4 published figures come with conditions, shown under the spec table: AC charge time, AC outlets, rated cycles and surge.
How does the Anker SOLIX C300 compare with similar power stations?
By capacity, the nearest models from other brands are BLUETTI Elite 30 V2, EcoFlow RIVER 3 Plus and Jackery Explorer 300.
Head-to-head comparisons
Which models from other brands are closest in size?
How this page was made. Specs come from each manufacturer's official US spec page or manual, checked on the date shown; specs a manufacturer doesn't publish are marked "Not published". Runtimes are calculated (capacity × 85% inverter efficiency ÷ appliance draw), not measured. We haven't hands-on tested these units. Method and sources · Affiliate disclosure