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Head-to-head test

EcoFlow RIVER 3 230 vs Anker SOLIX C300 DC

One of these has a wall outlet and the other doesn't — decide whether you'll ever plug in something with a plug, and everything else is a footnote.

Written by Wenny ZhengUpdated

Portable Power Tester, Station Arena Test Desk

Stack these against 100+ rivals
MethodologyReader-supported — we may earn from links (details)
EcoFlow RIVER 3 230 Portable Power Station

EcoFlow

RIVER 3 230

230Wh300W7.8 lb

1,609Power Score · Device Hub

Check price →

$189.00 list · direct from EcoFlow

Anker SOLIX C300 DC Portable Power Station

Anker

SOLIX C300 DC

288Wh300W6.2 lb

1,621Power Score · Device Hub

Check price →

$199.99 list · direct from Anker

Spec deltas

Capacity
230Wh
288Wh
Output
300W
matched
300W
Weight
7.8 lb
6.2 lb
Price
$189
$200
Cost / Wh
$0.82
$0.69
Cycle life
3,000
matched
3,000
Solar input
110W
100W
01

One of these two has a wall outlet; the other doesn't. The EcoFlow RIVER 3 230 carries a 300W AC inverter with 600W of surge; the Anker SOLIX C300 DC skips the inverter and routes everything through USB and a 12V socketB1. That single fork settles most of this matchup before capacity, weight, or price gets a vote.

Strip away AC and the C300 is the better gadget-charger on the numbers: 288Wh to the RIVER's 230, 6.2 lbs to 7.8, 140W of USB-C to 100W, and $29 cheaper at $170. It refills to 80% in about an hour off that same USB-C portB2, and owners like it for topping phones and laptops several times overB3. Nothing about the DC-only design is a compromise for a pure device charger. It's the whole point.

So the RIVER charges $29 for a wall outlet, a UPS that flips over in 20ms, two extra years of warranty, and a disclosed sub-30dB fanA1 — while handing back 58Wh and a pound and a half. For the person who's sure they'll only ever charge USB gear, that's a bad trade and the C300 wins. For everyone still hedging, AC is the one capability on this page you can't add after the fact, and $29 is a low price to keep it.

02

What the Numbers Reveal

Each conclusion stated first — the numbers behind it on one line, the full analysis below.

F1

You can recharge your way out of a smaller battery, but you can't bolt an inverter onto the C300 later. The RIVER's AC is a capability you either own on day one or never have; the 58Wh you give up refills every time you plug in.

RIVER 3 230: 300W AC output, 600W surgeSOLIX C300 DC: DC-only, no AC inverter (0W surge)price gap is $29 ($199 vs $170)

Why it mattersAnyone who might ever plug a standard wall device into it should take the RIVER and stop comparing.

F2

Capacity

That 140W port does double duty: it fills the unit to 80% in an hour and fast-charges a modern laptop, so the DC-only build isn't a sacrifice for this buyer — it's exactly what they'd have chosen.

C300 DC: 288Wh, 6.17 lbs, 140W USB-C, $170RIVER 3 230: 230Wh, 7.8 lbs, 100W USB-C, $199C300 refills to 80% in about 1 hour via USB-CB2

Why it mattersIf AC never enters the picture, the C300 is both the better tool and the cheaper one.

F3

Price it over the coverage you'll actually lean on and it flips: the RIVER's five years at $40 a protected year beats the C300's three at $57. The lifetime-kWh win is real on the spreadsheet and irrelevant in your closet.

C300 is cheaper per lifetime kWh ($0.20 vs $0.29)both rated 3000 cycles (~8 years daily, ~58 years of weekend trips)RIVER 5-year warranty at $40/protected-year vs C300 3-year at $57

Why it mattersDon't let the $/kWh figure tug you toward the Anker; if longevity coverage matters, the RIVER is protected two years longer.

The specific dimensions that decide these two units — everything else is a tie.

Runtime: Will It Power Your Gear?

Selected because: 230 vs 288Wh and usable energy, but the real point is AC-vs-DC delivery, not the 58Wh.

Rated capacity splits 288Wh to 230, but drain either to a sane floor and knock off inverter losses and you're really working with about 245Wh in the Anker against 195 in the EcoFlow. In device terms that's a couple more phone-and-laptop cycles for the C300, not a different league.

The gap that actually decides anything isn't the 58Wh. It's that the RIVER can spend its 230Wh through a wall plug and the C300 can only push its 288 through USB and 12V. Bigger tank, narrower spout.

Portability & Form Factor

Selected because: Both are one-hand units; C300 lighter but the gap is light-vs-lighter, not liftable-vs-not.

weight

At 6.2 and 7.8 lbs these are both grab-and-go units — neither needs the two-hands, bent-knees treatment a 60-lb station demands. The C300's pound-and-a-half edge is real, but it's the difference between light and lighter, not between liftable and not.

If grams in a backpack are your deciding factor, you've already talked yourself into the Anker. For everyone else this section is close to a wash, and the AC question upstream carries far more weight than the ounces.

Lifetime Value

Selected because: Surfaces the honest tension: C300 cheaper per kWh, RIVER cheaper per warranty-year.

cost / lifetime kWh

On paper the C300 stores energy cheaper — about 20 cents a lifetime kilowatt-hour to the RIVER's 29 — because it holds more Wh for less money. The catch is the denominator. Both are rated for 3000 cycles, roughly eight years of daily use or a lifetime of weekend trips, and neither cheap little unit is realistically alive to cash that check.

Price the thing over the coverage you'll actually use and it inverts: the RIVER's five-year warranty works out to $40 a protected year against the C300's $57 over three. The Anker is cheaper to buy and cheaper per stored kWh. The EcoFlow is cheaper to keep protected.

What the Specs Don't Tell You

Selected because: UPS advantage (RIVER only), warranty info, and C300's undisclosed noise all fire here.

The UPS gap is the one with teeth. The RIVER 3 switches to battery in about 20ms, fast enough to carry a CPAP or a desk setup through a grid blip. The C300, with no AC inverter, can't do UPS at all — there's no outlet to hold up.

Noise is a smaller flag. EcoFlow discloses sub-30dB operationA1; Anker publishes no dB figure for the C300, which isn't proof it's loud but is a number you're taking on faith. None of this touches the pure USB charger, and all of it matters the moment an AC device is in the room.

Brand Trust

Selected because: Cross-brand EcoFlow vs Anker; both have real ecosystem strengths and real caveats.

EcoFlow brings the deeper bench: a dozen-plus models, the largest owner community in portable power, and the fastest charging tech in the category. It also carries an October 2025 DELTA Max recall and a 2025 flirtation with paywalling app features that the community shouted down.

Anker leans on parent-brand goodwill and genuinely class-leading dollars-per-Wh on its Gen 2 line, though SOLIX-specific support is drifting toward canned AI responses and firmware that's quietly dropped features. Neither reputation should override the hardware fork here. Both are established enough that a $170-to-$200 purchase is safe; buy the unit that fits, not the logo.

Strengths & trade-offs

EcoFlow RIVER 3 230

Strengths

  • +Costs $11 less
  • +Longer warranty
  • +Faster solar charging

Trade-offs

  • No major technical downsides compared to rival.

Anker SOLIX C300 DC

Strengths

  • +Lighter by 1.6 lb
  • +Larger battery capacity

Trade-offs

  • No major technical downsides compared to rival.
03

Will It Power Your Gear?

Scenario math and per-appliance runtimes, modeled from the spec record.

Scenario verdicts

We ran the math on six real-world scenarios. Here's which unit survives your actual life.

SCN-01 · 2 nights · needs 2,100Wh

Weekend Camping

Two nights off-grid with essential comfort

Neither unit

Neither unit can fully handle this scenario (needs 2,100Wh). You'd need a higher-capacity station or to cut back on usage.

Camping power station guide

Battery budget usedlower = more headroom

LOAD  Phone Charger 15W×6h · LED Lights 40W×8h · Box Fan 75W×14h · CPAP Machine 40W×16h

SCN-02 · 8 hours · needs 1,645Wh

8-Hour Blackout

Keep the essentials running through a night without power

Neither unit

Neither unit can fully handle this scenario (needs 1,645Wh). You'd need a higher-capacity station or to cut back on usage.

Emergency blackout power guide

Battery budget usedlower = more headroom

LOAD  Fridge 150W×8h · Router + Modem 20W×8h · LED Lights (4 bulbs) 40W×6h · Phone Charger 15W×3h

SCN-03 · 8 hours · needs 320Wh

CPAP Overnight

Sleep therapy without interruption — the #1 medical use case

Neither unit

Neither unit can fully handle this scenario (needs 320Wh). You'd need a higher-capacity station or to cut back on usage.

CPAP battery backup guide

Battery budget usedlower = more headroom

LOAD  CPAP Machine 40W×8h

SCN-04 · 8 hours · needs 910Wh

Remote Workday

Full work day off-grid without power anxiety

Neither unit

Neither unit can fully handle this scenario (needs 910Wh). You'd need a higher-capacity station or to cut back on usage.

Battery budget usedlower = more headroom

LOAD  Laptop 60W×8h · External Monitor 30W×8h · Router + Modem 20W×8h · Phone Charger 15W×2h

SCN-05 · 4 hours · needs 670Wh

Tailgate Party

Game day power for the crew

Neither unit

Neither unit can fully handle this scenario (needs 670Wh). You'd need a higher-capacity station or to cut back on usage.

Battery budget usedlower = more headroom

LOAD  Blender 400W×0.5h · LED TV (55") 80W×4h · Bluetooth Speaker 15W×4h · Phone Charger (×3) 45W×2h

SCN-06 · 24 hours · needs 4,685Wh

Van Life Daily

A full day of mobile living — the ultimate endurance test

Neither unit

Neither unit can fully handle this scenario (needs 4,685Wh). You'd need a higher-capacity station or to cut back on usage.

Battery budget usedlower = more headroom

LOAD  Mini-Fridge 150W×24h · Laptop 60W×4h · Phone Charger 15W×3h · LED Lights 40W×5h · Fan 75W×8h

The Load Test

RUNTIME = (Wh × 0.85) ÷ LOAD

None of the six scenarios above exactly yours? Build it. Toggle what you'd plug in; both units are tested against the combined draw.

Essentials

Comfort & Convenience

High-Draw Appliances

Test duration

8h

Continuous draw

205W

Projected runtime

RIVER 3 2301h
dead in 1h — before your 8h window ends
SOLIX C300 DC1.2h
dead in 1.2h — before your 8h window ends

For this load: SOLIX C300 DC runs 1.2h vs 1h.

Check SOLIX C300 DC price →

$199.99 list · direct from Anker

Modeled from the spec record — same math as the tables below. Methodology

Runtime by appliance

Real-world runtime estimates for common appliances, modeled at 85% inverter efficiency.¹

Essentials

The basics you need runningscale 0–16.3h
ApplianceRIVER 3 230SOLIX C300 DC
CPAP Machine40W draw
RIVER 3 230: 4.9h0 full nights
SOLIX C300 DC: 6.1h0 full nights
Phone Charger15W draw
RIVER 3 230: 13h
SOLIX C300 DC: 16.3h
Router + Modem20W draw
RIVER 3 230: 9.8h
SOLIX C300 DC: 12.2h
Starlink75W draw
RIVER 3 230: 2.6h
SOLIX C300 DC: 3.3h
LED Lights (4 bulbs)40W draw
RIVER 3 230: 4.9h
SOLIX C300 DC: 6.1h
Laptop (Working)60W draw
RIVER 3 230: 3.3h
SOLIX C300 DC: 4.1h

Comfort & Convenience

Makes off-grid life actually enjoyablescale 0–3.3h
ApplianceRIVER 3 230SOLIX C300 DC
Box Fan75W draw
RIVER 3 230: 2.6h
SOLIX C300 DC: 3.3h
LED TV (55")80W draw
RIVER 3 230: 2.4h
SOLIX C300 DC: 3.1h
Mini-Fridge150W draw
RIVER 3 230: 1.3h
SOLIX C300 DC: 1.6h
Electric Blanket200W draw
RIVER 3 230: 1h0 full nights
SOLIX C300 DC: 1.2h0 full nights

High-Draw Appliances

These reveal the real limits
ApplianceRIVER 3 230SOLIX C300 DC
Coffee Maker1000W draw
RIVER 3 230: — exceeds output
SOLIX C300 DC: — exceeds output
Microwave1200W draw
RIVER 3 230: — exceeds output
SOLIX C300 DC: — exceeds output
Space Heater1500W draw
RIVER 3 230: — exceeds output
SOLIX C300 DC: — exceeds output

¹ Runtime = (capacity × 0.85) ÷ appliance watts. Within each group, all bars share one time scale (the group's longest runtime), so lengths are comparable across appliances; identical runtimes collapse into a single blue/orange bar. Actual runtime varies with battery age, temperature, and simultaneous loads — see methodology.

Conclusion

July 16, 2026

Verdict: the EcoFlow RIVER 3 230

The RIVER 3 230 has a 300W AC outlet, a 20ms UPS, and a 5-year warranty; the SOLIX C300 DC has none of those because it skips the AC inverter entirely. For $29 more the EcoFlow keeps the option to run a wall device, which is the one thing here you can't add later. If you're certain you'll only ever charge USB gear, the C300 is genuinely the better buy — lighter, cheaper, bigger, faster over USB-C — so this is a lean, not a rout. But for the buyer still hedging, AC is cheap insurance and the RIVER is the safer default.

■■■■■■□□□□6/10

Editor-assigned confidence, based on cited owner research and spec analysis.

List prices as of July 16, 2026. The links below open EcoFlow's and Anker's current prices.

Check RIVER 3 230 price

$189.00 list · direct from EcoFlow

or check the SOLIX C300 DC price$199.99 list

Written by Wenny Zheng, Portable Power Tester · Station Arena Test Desk · Updated July 16, 2026

04

Measured Data

Benchmark scores and the full spec record, side by side.

Benchmark scores

RIVER 3 230SOLIX C300 DC
Overall Power Score
1,609
1,621
Apartment BalconyCompact Solar Living
1,913
2,092
CampingLightweight & Versatile
1,839
2,106

Not rated for both units (minimum threshold unmet): UPS, CPAP, Tailgating.

Full specifications

RIVER 3 230
$189★ our pick
Updated Jul 16
See live price →
SOLIX C300 DC
$199.99
Updated Jul 16
See live price →
Capacity (Wh)
230
288
Output (W)
300
300
Surge Peak
600W
N/A
AC Outlets
2
0
USB-C Charging Outputs
100W
140W, 140W, 100W, 15W
Solar Input (W)
110
100

ᵈ Derived: price ÷ rated capacity. See the data behind our comparisons →

Comparison ToolAdd more power stations, side by sideOpen Tool →
How these numbers are produced

Numeric verification

Every figure on this page traces to our spec database or arithmetic on it — no estimated numbers.

Owner claims

Statements about owner experience are cited to published reviews — see Sources & Research Notes below.

Runtime model

Runtime = (rated capacity × 0.85 inverter efficiency) ÷ device wattage. Solar recharge estimates assume panels deliver 70% of rated output. Cold weather, battery age, and stacked loads reduce real-world results.

Power Score

Computed from 14 published spec dimensions, weighted per use-case bench. Higher is better; a unit must meet a bench's minimum threshold to be rated.

See the full weight table and data sourcing on our methodology page →

Class ranking (the star rating)

Each unit's star score is a category ranking, not customer reviews — no buyer opinions feed it. We score every station on size-independent quality (value, output, portability, endurance, ports, warranty, and more), then percentile-rank it against the other units in its capacity class, so a class-leading compact unit and a class-leading whole-home unit can both earn 5★. Here, RIVER 3 230 rates 4.3/5 (57th percentile of 22 Personal-class units), and SOLIX C300 DC rates 4.2/5 (52nd percentile of 22 Personal-class units).

How the class ranking is computed →

Test Notes & Caveats

Hidden gotchas and advantages we spotted that you won't find on the product page.

[ADVANTAGE]

UPS: only one of these has an outlet to protect

The RIVER 3 230 flips to battery in about 20 milliseconds, quick enough to carry a CPAP or a desktop through a grid blip. The C300 DC has no AC inverter, so there's nothing to switch over — UPS isn't so much a weakness here as a category it doesn't play in. If uninterrupted AC matters, this is a one-horse race.

[NOTE]

Five years against three

EcoFlow covers the RIVER 3 for five years, Anker covers the C300 for three. Priced over that coverage it's $40 a year versus $57 — the pricier unit is the cheaper one to keep protected. It won't decide the matchup on its own, but it's a quiet point in the RIVER's column.

[CAUTION]

Anker doesn't publish a noise figure

EcoFlow rates the RIVER 3 under 30dB and reviewers back it up. Anker publishes no dB number for the C300 DC, which isn't evidence it's loud — DC-only units are often quiet — but it's a spec you're taking on faith. For something that might sit on a nightstand, an undisclosed number is a small leap of trust.

Full record above — the Test Desk pick is the RIVER 3 230.

Check RIVER 3 230 price →or check the SOLIX C300 DC price
05

Ownership Analysis

What happens after you buy — true cost of ownership, brand trust, and growth potential.

Lifetime value

RIVER 3 230SOLIX C300 DC

│ warranty ends · Reaching the cycle rating means ~80% capacity remains — degraded, not dead.

RIVER 3 230
SOLIX C300 DC
Purchase price
$189.00
$199.99
Lifetime energy delivered
690 kWh
864 kWh
Cost per lifetime kWh
$0.27
$0.23
Cost per warranty year
$38/yr
$67/yr
Battery lifespan
8.2yr daily · 28.8yr weekend · 57.7yr weekly
8.2yr daily · 28.8yr weekend · 57.7yr weekly

Analyst note

The RIVER 3 230 is cheaper to buy, but the SOLIX C300 DC is cheaper to own. At $0.23/kWh over its lifetime vs $0.27/kWh, the SOLIX C300 DC's higher cycle life and capacity make each dollar go further over the years.

Brand trust

EcoFlow

Ecosystem

Largest in portable power — 12-15 models across DELTA Pro, DELTA 3, and RIVER 3 series, plus solar panels and smart home panels

Support

US-based phone/email/chat support (1-800-368-8604). Experiences are polarized — many report hassle-free prepaid-label replacements, but others report long waits and refurbished units sent for new claims. Pro tip: buying from Costco or Amazon gives you a stronger return safety net.

Community

Largest community in the space — Reddit r/Ecoflow_community (~31K members), multiple Facebook groups, and an official community forum

App experience

Rated 4.6/5 iOS (~8,400 ratings) · 4.2/5 Android (~17,000 ratings)

Unique strength

Fastest-charging technology (X-Stream), deepest product ecosystem, and most active innovation cadence. Supports up to 180kWh modular expansion with DELTA Pro Ultra X.

Worth knowing

The Oct 2025 DELTA Max 2000 recall (overheating/fire risk, 6 incidents) is worth noting. Also tested subscription paywalls for advanced app features in early 2025 before community backlash paused the plan. No parts or service offered out of warranty.

All EcoFlow power stations tested →

Anker

Ecosystem

7-8 SOLIX portable power stations across C-series (compact) and F-series (flagship), plus the X1 home energy system

Support

US-based support. Historically known for incredible no-hassle replacements, but recent reports describe AI-driven support agents giving generic responses and complex return logistics for heavy units (hazmat shipping). The Anker brand reputation is still strong, but SOLIX-specific support quality is trending down.

Community

Moderate — active Reddit (r/Anker, r/AnkerSOLIXCommunity) and growing. Benefits from Anker's massive consumer electronics brand awareness.

App experience

Rated 4.5/5 iOS (~1,100 ratings) · 4.3/5 Android

Unique strength

Parent brand trust from Anker's consumer electronics dominance. InfiniPower technology for long cycle life. Strong $/Wh value in the mid-size and larger units — the S2000, F2600 and C1000 are among the better buys per watt-hour in the catalog.

Worth knowing

Support quality appears to be declining from its historically excellent level. Firmware updates have removed features without warning. Expansion ecosystem is smaller than EcoFlow's.

All Anker power stations tested →

Analyst note

EcoFlow positions itself as a mid-to-premium brand with stronger support infrastructure, while Anker competes on value. The question is whether the EcoFlow ecosystem and support premium is worth it for your use case.

Growth path

RIVER 3 230

FIXED CAPACITY

Fixed at 230Wh, with no expansion — so size it for your needs up front rather than planning to add capacity later.

Accepts up to 110W of solar. Limited to a single portable panel.

Limited ports. You'll likely need a power strip or splitter.

SOLIX C300 DC

FIXED CAPACITY

Fixed at 288Wh, with no expansion — so size it for your needs up front rather than planning to add capacity later.

Accepts up to 100W of solar. Limited to a single portable panel.

Adequate ports for most setups, but heavy users may want a power strip.

RIVER 3 230SOLIX C300 DC

Analyst note

Neither expands, and that's no knock on either — each is a complete unit at a fixed size. Buy the capacity that covers your needs now (the SOLIX C300 DC gives you the larger ceiling); you can't add to either later.

06

What Owners Report

Patterns from published owner reports and long-term reviews — every claim cited to its source below.

EcoFlow RIVER 3 230

Field data on this exact 230Wh variant is thin — most coverage is of the broader RIVER 3 line — so treat variant-specific claims as directional. What's consistent across that line: the RIVER 3 runs under 30dB, quiet enough that reviewers compare it to a library and call it the standout upgrade over the noisier RIVER 2A1. The generational jump also added IP54 splash resistance, a faster UPS switchover, a 2x runtime mode, and a more compact bodyA2, which is why the line keeps getting recommended as the better 2026 buy for camping, van life, and home UPS backup where noise and durability actually matterA3.

The RIVER 3 operates under 30 dB — EcoFlow calls it 'whisper quiet,' quieter than a library — one of the most significant upgrades over the louder RIVER 2.
backuppowerhub.com / ecoflow.com — RIVER 3 review, 2026

Sources

backuppowerhub.com · ecoflow.com · rv.com

Anker SOLIX C300 DC

Reviewers consistently frame the C300 DC as a light DC-only workhorse: it drops the AC inverter to stay around 6.2 lbs and focus on device powerB1. The port loadout draws praise — two USB-A, four USB-C, and a 12V socket, with two-way USB-C (PD 3.1) that refills the unit to 80% in about an hourB2. Owners report it comfortably charges a phone and laptop several times over, runs a fan for hours, or drives a small light setupB3, with the recurring caveat that it's built for modern travelers charging gadgets, not for running AC appliancesB4.

A 288Wh unit that ditches the heavy AC inverter to focus on DC power, keeping it very light at about 6.2 lbs.
the-gadgeteer.com / forbes.com — SOLIX C300 DC review, 2026

Sources

the-gadgeteer.com · forbes.com · androidpolice.com · batteryessence.com · bestbuy.com · campingsolar.us

Sources & Research Notes

Every owner claim in this report is traceable to a published source. The bracketed references above resolve here.

Recurring owner themes

  • The RIVER 3 line's upgrades — sub-30 dB noise, IP54 waterproofing, faster UPS, more compact build — make it the recommended pick over the RIVER 2 for most uses. [RIVER 3 230 · 3 entries]
  • Light DC-only design (no AC inverter), fast USB-C charging, and good port selection for device charging are the highlights. [SOLIX C300 DC · 3 entries]
  • A1

    The RIVER 3 operates under 30 dB — EcoFlow calls it 'whisper quiet,' quieter than a library — one of the most significant upgrades over the louder RIVER 2.

    backuppowerhub.com / ecoflow.com — RIVER 3 review · 2026 · [positive]

  • A2

    Over the RIVER 2, the RIVER 3 adds IP54 waterproofing, a faster UPS switchover, a 2x runtime mode, quieter operation, and a more compact form factor.

    backuppowerhub.com — RIVER 2 vs RIVER 3 · 2026 · [positive]

  • A3

    Recommended as the better buy for most in 2026 — for camping, van life, or home UPS backup, where durability and noise matter, the data consistently favors the RIVER 3.

    backuppowerhub.com / rv.com — RIVER 3 review · 2026 · [positive]

  • B1

    A 288Wh unit that ditches the heavy AC inverter to focus on DC power, keeping it very light at about 6.2 lbs.

    the-gadgeteer.com / forbes.com — SOLIX C300 DC review · 2026 · [positive]

  • B2

    Offers 2 USB-A and 4 USB-C ports plus a 12V car socket; two-way USB-C with PD 3.1 recharges the unit to 80% in about 1 hour.

    androidpolice.com / batteryessence.com — SOLIX C300 DC review · 2026 · [positive]

  • B3

    Owners praise its portability and capacity — enough to charge a phone and laptop several times, run a fan for hours, or power a small light setup.

    bestbuy.com owner reviews — SOLIX C300 DC / C300X · 2026 · [positive]

  • B4

    A DC-focused design with app integration and solar support — best for modern travelers charging devices, not running AC appliances.

    androidpolice.com / campingsolar.us — SOLIX C300 DC review · 2026 · [mixed]

Research compiled July 16, 2026.

07

Who Should Buy Which

Buy the RIVER 3 230 if you…

  • You'll plug in at least one wall device — a laptop's AC brick, a CPAP, a string of lights, a small TV at a tailgate — and want that option without buying a second box.
  • You want UPS: a desk setup or CPAP that can't tolerate a hard cut when the grid blinks, held up by the 20ms switchover.
  • You value the longer safety net — five years of warranty at $40 a protected year, and a disclosed sub-30dB fan you can sleep next toA1.

This is you — check the RIVER 3 230 price

Buy the SOLIX C300 DC if you…

  • You charge USB gear and nothing else — phones, laptops, a tablet, a drone — and want the lightest, cheapest, highest-capacity way to do it.
  • You want the fastest top-ups: 140W two-way USB-C both fills the C300 to 80% in about an hour and fast-charges a modern laptopB2.
  • You're counting grams for a backpack or bike bag, where 6.2 lbs beats 7.8 by enough to feel it.

This is you — check the SOLIX C300 DC price

If neither fits

If your real load is a full-size fridge, a whole-house blackout, or van-life daily draw, both of these are too small — you're holding 230 to 288Wh when those jobs need thousands of watt-hours. Step up to a 1,000Wh-plus station with a 1,500W-or-larger inverter instead of asking either of these to start a job neither can.

08

The Bottom Line

The whole decision reduces to one question: will you ever plug a wall device into it? If yes, the RIVER 3 230 is the only one of these two that can, and $29 is a low price for an AC outlet, a 20ms UPS, and two extra years of warranty you can't retrofit onto the Anker. If no — if it's phones and laptops from here to the horizon — the C300 DC is lighter, cheaper, bigger, and faster over USB, and you should buy it without a second thought.

Everyone still hedging should take the RIVER and keep the option open. That's the side of this coin where regret is cheap: an unused AC outlet costs you $29 and a pound and a half, while a missing one costs you the whole reason you might have needed a power station in the first place.

09

Frequently Asked Questions

Answers drawn from the spec record and cited owner research.

Can the Anker SOLIX C300 DC run AC appliances or power a wall outlet?

No. The C300 DC has no AC inverter — it's DC-only, pushing power out through USB-A, USB-C, and a 12V car socket. If you need to plug in anything with a standard wall plug, the EcoFlow RIVER 3 230 and its 300W AC outlet is the only one of these two that can do it.

Is the EcoFlow RIVER 3 230 worth $29 more than the C300 DC?

If you'll ever use AC, yes — the extra $29 buys a 300W wall outlet, a 20ms UPS, and two more years of warranty, none of which you can add later. If you only charge USB devices, no: the C300 is cheaper, lighter, and holds more capacity (288Wh vs 230), so the RIVER's premium buys you nothing you'd use.

Which one lasts longer and is the better long-term buy?

Both are rated for the same 3000 cycles, so lifespan in cycles is a tie. The difference is coverage: the RIVER 3 carries a 5-year warranty against the C300's 3, which works out to $40 versus $57 per protected year. The C300 is cheaper per stored kilowatt-hour on paper, but that edge only pays off at a cycle count neither small unit realistically reaches.

Which charges faster?

The C300 DC refills to about 80% in roughly an hour through its 140W two-way USB-C port, and that same 140W charges a modern laptop faster than the RIVER's 100W USB-C. For pure charging speed the Anker leads. The RIVER's advantage is what it can charge — AC devices — not how fast.

Are these big enough for camping or a blackout?

For a full weekend or a whole-house outage, no — at 230 to 288Wh they'll charge devices and run small DC loads but can't cover the 1,600Wh-plus those jobs need. These are day-trip and desk-side units. If you want real outage or multi-day camping coverage, look at a 1,000Wh-plus station instead.

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Where to buy

RIVER 3 230

EcoFlow RIVER 3 230Pick

$189.00

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$189.00 list · direct from EcoFlow

SOLIX C300 DC

Anker SOLIX C300 DC

$199.99

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$199.99 list · direct from Anker

Prices may vary by retailer and are subject to change.