Anker SOLIX C300 vs Anker SOLIX C300X
Two small power stations, number by number. Neither is ranked above the other. Every spec comes from each maker's manual or product page; tap a station for the source.
- Bigger battery: about the same (288 Wh vs 288 Wh).
- More AC output: about the same (300 W vs 300 W).
- Higher surge: about the same (600 W vs 600 W).
- More solar input: about the same (100 W vs 100 W).
- Higher solar voltage limit: about the same (28 V vs 28 V).
- Lighter: about the same (9.1 lb vs 9.1 lb).
- Lower brand-store price: Anker SOLIX C300X, $300 vs $430.
C300 and C300X are the same size class: within 0 Wh of each other. C300 and C300X are the lightest at 9.1 lb. C300 and C300X take the most solar at 100 W, so they refill fastest. C300X is the cheapest at $300.
How long they run common devices
| Device | Anker SOLIX C300 | Anker SOLIX C300X |
|---|---|---|
| Fridge (60 W) | 4 hours | 4 hours |
| CPAP (40 W) | 6 hours | 6 hours |
| Starlink (100 W) | 2.5 hours | 2.5 hours |
| Laptop (60 W) | 4 hours | 4 hours |
On a full charge, assuming 85% of the battery is usable. Real devices vary; check the label on yours.
Every spec side by side
| Spec |  Anker SOLIX |  Anker SOLIX |
|---|---|---|
Battery Wh, size | 288 Wh fridge about 4 hours | 288 Wh fridge about 4 hours |
AC output W, continuous | 300 W CPAP, laptops, lights, phones | 300 W CPAP, laptops, lights, phones |
Surge W, a second or two | 600 W motor start-ups | 600 W motor start-ups |
Solar input W, max | 100 W full in about 4 hours | 100 W full in about 4 hours |
Solar voltage range V, panels must fit | 11 to 28 V 1 panel, or 2 in parallel | 11 to 28 V 1 panel, or 2 in parallel |
Solar inputs count | 1 input XT60 | 1 input XT60 |
Weight lb | 9.1 lb one hand | 9.1 lb one hand |
Wh per pound battery for the weight | 32 Wh/lb higher is denser | 32 Wh/lb higher is denser |
Price brand store | $430 1.49 $/Wh | $300 1.04 $/Wh |
Price per Wh what you pay for storage | $1.49 lower is better value | $1.04 lower is better value |
| Buy | $430 · Details Brand store, Oct 28, 2026 | $300 · Details Brand store, Oct 28, 2026 |
Which solar panels work with each
Our checker at 20°F, using each maker's voltage and current rules. Tap a verdict for the wiring and cables.
Where to buy
Out of stock at the Anker SOLIX store when we checked
Out of stock at the Anker SOLIX store when we checked
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