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300Wh Portable Power Stations Compared: Anker Solix C300 vs Jackery 240 New vs EcoFlow RIVER 3
For a first portable power station, the 300Wh class (230–290Wh) is the usual pick: many phone charges, enough for small appliances, and light enough for almost anyone to carry. The short answer: balanced capacity and AC output → Anker Solix C300; brand reassurance and portability → Jackery 240 New; quiet operation and UPS → EcoFlow RIVER 3. This guide lines up the three makers’ standard models on stated figures and sorts them by use. For how to read watt figures, see portable power station wattage guide.
The short answer: picks by use
- Balanced capacity and output: Anker Solix C300 (288Wh, 300W AC)—more capacity for the class. AmazonRakuten
- Brand and portability: Jackery Portable Power Station 240 New (256Wh, 300W AC)—a very large Rakuten review base. AmazonRakuten
- Quiet and UPS: EcoFlow RIVER 3 (230Wh, 300W AC)—30dB quiet design and UPS (maker's claims). AmazonRakuten
Main differences: capacity (230 / 256 / 288Wh), weight, quiet/UPS or not, brand. All three use LiFePO4 (long life).
Verification: compared from makers' official and product-page figures, not measurements. Rakuten buttons added as data becomes available.
The short answer: what a 300Wh class can do
- A phone (~15Wh) a dozen-plus times, a laptop (~50–70Wh) three to four times as a rule of thumb (budget less once conversion loss is included).
- 300W AC runs: a small fan, LED lights, an electric blanket, a laptop, a small projector, a small rice cooker (check the wattage). Not a hair dryer or microwave (1,000W+).
- 3–4kg, carried one-handed—the right “first one” for car camping, camping, and blackouts.
- Versus a power bank: portable power station vs power bank; reading W and Wh: portable power station wattage guide.
Comparison table
| Product | Capacity (rated) | AC output (rated) | Battery | Weight (rated) | Notes | Best for | Main weakness |
|---|---|---|---|---|---|---|---|
| Anker Solix C300 | 288Wh | 300W | LiFePO4 | ~4kg class | More capacity for the class; high-output USB-C | Balanced capacity and output | Not the lightest |
| Jackery 240 New | 256Wh | 300W (600W surge) | LiFePO4 | ~3.6kg | ~60-minute fast charge, UPS, app (maker’s claims) | Brand and portability | Mid capacity |
| EcoFlow RIVER 3 | 230Wh | 300W (600W surge) | LiFePO4 | ~3.5kg class | 30dB quiet, 10ms UPS, GaN (maker’s claims) | Quiet; UPS in a blackout | Least capacity |
Capacity, output, and weight are makers’ official / product-page ratings at the time of writing. “Surge” is a brief peak, not continuous.
Each product: who it suits, and its weakness
Anker Solix C300 (288Wh, 300W AC)
More capacity for the class, and a high-output USB-C port charges a laptop directly. For anyone who wants “a little longer” at camp or in the car. Anker’s power stations are also covered in portable power for camping and car camping.
Anker Solix C300 Portable Power Station (288Wh, black)
Jackery Portable Power Station 240 New (256Wh, 300W AC)
The category’s best-known brand, with a very large Rakuten review base—easy to pick as a first unit. About 3.6kg, with fast charging and app control (maker’s claims).
Jackery Portable Power Station 240 New (256Wh, LiFePO4)
EcoFlow RIVER 3 (230Wh, 300W AC)
Known for a 30dB quiet design and UPS (maker’s claims). For anyone who wants a router or PC to switch over in a blackout without dropping, or who uses it in a bedroom. The least capacity of the three.
EcoFlow RIVER 3 Portable Power Station (230Wh, LiFePO4)
How to choose
- Pick LiFePO4: all three use it. Long cycle life suits “leave it charged” disaster prep (how lithium batteries work).
- Check the wattage of what you’ll run: anything over 300W is out; don’t plan around the surge figure.
- For blackouts, check UPS and solar-panel support (blackout power checklist).
- More capacity means more weight: decide by how often you carry it.
FAQ
Q. Can I fly with it? A. The 300Wh class exceeds the 160Wh limit most airlines apply, so no. Plan on car travel (for power banks, see airline rules).
Q. Can it run a microwave or hair dryer? A. Not at 300W class. Appliances over 1,000W need a larger class (e.g. Anker Solix C800)—see portable power for camping and car camping.
Q. How many years does it last? A. Makers rate LiFePO4 at roughly 3,000–4,000 cycles (to 70–80% remaining) (maker’s claims). Use and storage temperature matter.
Sources (primary)
- Jackery official: “Jackery Portable Power Station 240 New”
- EcoFlow official: “EcoFlow RIVER 3”
- Anker Solix C300: product-page figures (Anker Japan’s Solix line)
- Related: portable power station wattage guide / portable power station vs power bank
Summary
- The 300Wh class is the right first unit; all three are long-life LiFePO4.
- Capacity = Anker Solix C300 / brand and portability = Jackery 240 New / quiet and UPS = EcoFlow RIVER 3.
- Check the wattage of what you’ll run first; over 300W is out.
Related: portable power for camping and car camping / blackout power checklist
This article compares products based on public specifications and trends in customer reviews (not hands-on testing by our team). Prices, availability, and review counts change, so please check each product page for the latest. About us: About
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