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Head-to-head test

EcoFlow RIVER 2 Pro vs Anker SOLIX C1000 Gen 2

The SOLIX C1000 Gen 2 is the bigger, stronger unit, the faster one to refill from panels, and the only one of the two that takes an expansion battery. The RIVER 2 Pro is nearly eight pounds lighter and costs $181 less.

Full profiles: EcoFlow RIVER 2 Pro β†’ Β· Anker SOLIX C1000 Gen 2 β†’

Looking for a different matchup? EcoFlow RIVER 2 Pro vs Anker SOLIX C1000

Written by Ian SchneiderUpdated

Solar & Off-Grid Tester, Station Arena Test Desk

Stack these against 100+ rivals
MethodologyReader-supported β€” we may earn from links (details)

Spec deltas

Capacity
768Wh
1,024Wh
Output
800W
2,000W
Weight
17.2 lb
24.9 lb
Typical price
$349
$530
Cost / Wh
$0.45
$0.52
Cycle life
3,000
4,000
Solar input
220W
600W
01

If I were picking one of these for the cabin, I'd start at the solar port. The SOLIX C1000 Gen 2 takes up to 600W from panels. The RIVER 2 Pro takes 220W. On a short December day in Truckee, with the sun low behind the pines, that difference shows first.

The rest of the spec sheet leans the same way. The Anker holds a third more and runs 2,000W of continuous output to 800W. Reviewers note that's enough for a standard 1,500W space heater with headroom to spareB3. The RIVER 2 Pro can't run a heater that size.

The RIVER 2 Pro's case is the box itself. It's nearly eight pounds lighter and costs $181 less. Four AC outlets and three USB-A ports cover phones, lights and a laptop. It's also sealed, so what you buy is the most it will ever hold.

02

What the Numbers Reveal

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

F1

Switchover is the gap between the wall power dropping and the battery taking over. Routers ride through either. Many desktop power supplies won't ride through a 30ms gap.

The C1000 Gen 2 is rated to switch to battery in 10ms or lessThe RIVER 2 Pro is rated to switch in 30ms or less

Why it mattersFor a desktop with unsaved work, I'd put it on the Anker.

F2

solar input

In a multi-day outage the panels do the work once the wall is gone. The Anker's solar port is nearly three times the size.

The C1000 Gen 2 refills from the wall in roughly 49 minutes via HyperFlashB1The RIVER 2 Pro takes up to 220W of solar to the C1000 Gen 2's 600W

Why it mattersIf you plan to lean on solar, weigh the 600W port first.

The specific dimensions that decide these two units β€” everything else is a tie.

PowerScore Breakdown

Selected because: The C1000 Gen 2 leads the composite score by about 800 points.

overall power score

Our composite score puts the C1000 Gen 2 about 800 points ahead. Output is the biggest piece, then switchover speed, capacity and the expansion port.

The RIVER 2 Pro gains only on cost per watt-hour and watt-hours per pound. At 17.2 lb it's the easier one to carry into a walk-in campsite.

Growth Path

Selected because: Sealed against expandable.

solar input

The RIVER 2 Pro is sealed at 768Wh. That's fine if it covers you, and for phones, lights and a laptop it usually does. Outgrowing it means buying a second station.

The C1000 Gen 2 takes Anker expansion batteries, though its first advantage is its own 1,024Wh base. An extra battery at this size buys more hours on the same loads. It won't turn a 2,000W station into home backup, and Anker's expansion range is smaller than EcoFlow's.

What the Specs Don't Tell You

Selected because: Six flags apply, including UPS speed, surge and cycle life.

rated cycles

The noise card shows EcoFlow's own 62dB ceiling under heavy loadA2 beside Anker's best-case 35dB, and those two kinds of figure can't be set against each other.

The surge card splits. The RIVER 2 Pro surges to twice its rating and the Anker to one and a half times, but the Anker's 3,000W ceiling is the bigger number. A motor starting up draws a set number of watts, so on raw starting ability the Anker is stronger. Warranty is a tie at five years.

Lifetime Value

Selected because: The pricier unit is cheaper per kWh delivered.

cost / lifetime kWh

The pricier unit is the cheaper one to own. The C1000 Gen 2 is rated to deliver 4,096kWh over its life and the RIVER 2 Pro 2,304kWh. Spread the prices over that and the Anker works out to $0.13 per lifetime kilowatt-hour against $0.15.

A cycle is one full drain and refill. At one a day, the Anker's rating lasts about 11 years and the RIVER 2 Pro's 8.2. That only counts if you use the unit most days. One that comes out three weekends a year won't reach either rating.

Strengths & trade-offs

EcoFlow RIVER 2 Pro

Strengths

  • +Costs $181 less
  • +Lighter by 7.7 lb

Trade-offs

  • –Weaker inverter (-1,200W) limits appliance compatibility.
  • –Can receive complaints about fan noise under heavy load.
  • –Sealed capacity β€” the SOLIX C1000 Gen 2 can add batteries to grow past 768Wh; this one can't.
  • –Shorter-lived battery β€” rated for 3,000 charge cycles vs the SOLIX C1000 Gen 2's 4,000, so it wears out sooner.

Anker SOLIX C1000 Gen 2

Strengths

  • +Larger battery capacity
  • +Higher AC output
  • +Faster solar charging
  • +Rated for 4,000 charge cycles β€” much longer battery lifespan

Trade-offs

  • –Substantially more expensive (+$181) than the RIVER 2 Pro.
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 Β· 2 nights Β· needs 2,100Wh

Weekend Camping

Two nights off-grid with essential comfort

Neither unit

Neither unit covers this scenario's 2,100Wh: the RIVER 2 Pro comes up 1,447Wh short (about 31% covered), the SOLIX C1000 Gen 2 1,230Wh (41%). Treat this as partial cover β€” enough for the essentials in it, not the whole list.

Camping power station guide β†’

Battery budget usedlower = more headroom

LOADΒ Β Phone Charger 15WΓ—6h Β· LED Lights 40WΓ—8h Β· Box Fan 75WΓ—14h Β· CPAP Machine 40WΓ—16h

SCN-02 Β· 8 hours Β· needs 1,645Wh

8-Hour Blackout

Keep the essentials running through a night without power

Neither unit

Neither unit covers this scenario's 1,645Wh: the RIVER 2 Pro comes up 992Wh short (about 40% covered), the SOLIX C1000 Gen 2 775Wh (53%). Treat this as partial cover β€” enough for the essentials in it, not the whole list.

Emergency blackout power guide β†’

Battery budget usedlower = more headroom

LOADΒ Β Fridge 150WΓ—8h Β· Router + Modem 20WΓ—8h Β· LED Lights (4 bulbs) 40WΓ—6h Β· Phone Charger 15WΓ—3h

SCN-03 Β· 8 hours Β· needs 320Wh

CPAP Overnight

Sleep therapy without interruption β€” the #1 medical use case

Either unit

A CPAP at about 40W for eight hours fits in either with room to spare. The RIVER 2 Pro finishes the night with 333Wh left and the Anker with 550Wh. The noise ratings can't pick a bedside winner, since EcoFlow's is a heavy-load maximum and Anker's a best case. For this job alone, take whichever is cheaper or lighter.

Battery budget usedlower = more headroom

LOADΒ Β CPAP Machine 40WΓ—8h

SCN-04 Β· 8 hours Β· needs 910Wh

Remote Workday

Full work day off-grid without power anxiety

Neither unit

A laptop-and-monitor day needs 910Wh. The Anker falls 40Wh short, close enough that a shorter evening finishes it. The RIVER 2 Pro is 257Wh short and needs a top-up partway through.

UPS & desk backup guide β†’

Battery budget usedlower = more headroom

LOADΒ Β Laptop 60WΓ—8h Β· External Monitor 30WΓ—8h Β· Router + Modem 20WΓ—8h Β· Phone Charger 15WΓ—2h

SCN-05 Β· 4 hours Β· needs 670Wh

Tailgate Party

Game day power for the crew

SOLIX C1000 Gen 2

Our tailgate basket needs 670Wh. The Anker covers it with 200Wh to spare. The RIVER 2 Pro comes up 17Wh short after our allowance for conversion losses, so leaving one small thing unplugged gets it there.

Battery budget usedlower = more headroom

LOADΒ Β Blender 400WΓ—0.5h Β· LED TV (55") 80WΓ—4h Β· Bluetooth Speaker 15WΓ—4h Β· Phone Charger (Γ—3) 45WΓ—2h

SCN-06 Β· 24 hours Β· needs 4,685Wh

Van Life Daily

A full day of mobile living β€” the ultimate endurance test

Neither unit

Neither unit covers this scenario's 4,685Wh: the RIVER 2 Pro comes up 4,032Wh short (about 14% covered), the SOLIX C1000 Gen 2 3,815Wh (19%). This is well outside what either unit is for; the right answer here is a larger station, not a choice between these two.

Battery budget usedlower = more headroom

LOADΒ Β Mini-Fridge 150WΓ—24h Β· Laptop 60WΓ—4h Β· Phone Charger 15WΓ—3h Β· LED Lights 40WΓ—5h Β· Fan 75WΓ—8h

The Load Test

RUNTIME = (Wh Γ— 0.85) Γ· LOAD

None of the 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 2 Pro3.2h
dead in 3.2h β€” before your 8h window ends
SOLIX C1000 Gen 24.2h
dead in 4.2h β€” before your 8h window ends

For this load: SOLIX C1000 Gen 2 runs 4.2h vs 3.2h.

Check SOLIX C1000 Gen 2 price β†’

$529.99 list Β· direct from Anker

Planning for more than this? Describe your whole setup and get it sizedΒ β†’

Modeled from the spec record β€” same math as the tables below. Methodology

Runtime by appliance

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

Essentials

The basics you need runningscale 0–58h
ApplianceRIVER 2 ProSOLIX C1000 Gen 2
CPAP Machine40W draw
RIVER 2 Pro: 16.3h2 full nights
SOLIX C1000 Gen 2: 21.8h2 full nights
Phone Charger15W draw
RIVER 2 Pro: 43.5h
SOLIX C1000 Gen 2: 58h
Router + Modem20W draw
RIVER 2 Pro: 32.6h
SOLIX C1000 Gen 2: 43.5h
Starlink75W draw
RIVER 2 Pro: 8.7h
SOLIX C1000 Gen 2: 11.6h
LED Lights (4 bulbs)40W draw
RIVER 2 Pro: 16.3h
SOLIX C1000 Gen 2: 21.8h
Laptop (Working)60W draw
RIVER 2 Pro: 10.9h
SOLIX C1000 Gen 2: 14.5h

Comfort & Convenience

Makes off-grid life actually enjoyablescale 0–11.6h
ApplianceRIVER 2 ProSOLIX C1000 Gen 2
Box Fan75W draw
RIVER 2 Pro: 8.7h
SOLIX C1000 Gen 2: 11.6h
LED TV (55")80W draw
RIVER 2 Pro: 8.2h
SOLIX C1000 Gen 2: 10.9h
Mini-Fridge150W draw
RIVER 2 Pro: 4.4h
SOLIX C1000 Gen 2: 5.8h
Electric Blanket200W draw
RIVER 2 Pro: 3.3h0 full nights
SOLIX C1000 Gen 2: 4.4h0 full nights

High-Draw Appliances

These reveal the real limitsscale 0–0.9h
ApplianceRIVER 2 ProSOLIX C1000 Gen 2
Coffee Maker1000W draw
RIVER 2 Pro: β€” exceeds output
SOLIX C1000 Gen 2: 0.9h
Microwave1200W draw
RIVER 2 Pro: β€” exceeds output
SOLIX C1000 Gen 2: 0.7h
Space Heater1500W draw
RIVER 2 Pro: β€” exceeds output
SOLIX C1000 Gen 2: 0.6h

ΒΉ Runtime = (capacity Γ— 0.85) Γ· 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 β€” see methodology.

Conclusion

October 25, 2026

Verdict: the SOLIX C1000 Gen 2, on Power Score margin

Buy the Anker SOLIX C1000 Gen 2. It holds more, runs 2,000W to 800W, takes far more solar and accepts Anker expansion batteries, where the EcoFlow is sealed. It costs $181 more and still works out cheaper per lifetime kilowatt-hour, at $0.13 against $0.15. The RIVER 2 Pro is the lighter box, and the better pick only if 768Wh will always cover you.

Today the SOLIX C1000 Gen 2 is $499.99, $30 under its typical $529.99. The verdict weighs typical prices, not today's. Prices checked 28 days ago.

Cost to ownSOLIX C1000 Gen 2$0.13 vs $0.15 /lifetime-kWh
Cycle lifeSOLIX C1000 Gen 24,000 vs 3,000 cycles
Continuous outputSOLIX C1000 Gen 22,000W vs 800W
Typical priceRIVER 2 Pro$349 vs $530
PortabilityRIVER 2 Pro17.2 vs 24.9 lb
Solar inputSOLIX C1000 Gen 2600W vs 220W
β– β– β– β– β– β– β– β–‘β–‘β–‘7/10

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

List prices as of October 25, 2026. The links below open EcoFlow's and Anker's current prices.

Check SOLIX C1000 Gen 2 price

$499.99 Β· direct from Anker

down from $530 Β· 6% below usual

Last checked 28 days ago. Prices move β€” check before you buy.

or check the RIVER 2 Pro price$389.00 list

Written by Ian Schneider, Solar & Off-Grid Tester Β· Station Arena Test Desk Β· Updated October 25, 2026

Black Friday Β· 26 days out

Prices to beat:RIVER 2 Pro $349SOLIX C1000 Gen 2 $450

The lowest we have recorded for each. We have never seen the RIVER 2 Pro discounted, so any real cut on it would be a first.

Black Friday deals β†’
04

Measured Data

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

Benchmark scores

RIVER 2 ProSOLIX C1000 Gen 2
Overall Power Score
2,414
3,226
CPAPSleep Therapy Reliability
2,326
3,585
Solar GeneratorSolar Input & Efficiency
2,275
2,838
TailgatingOutlets & Portability
2,643
2,959
Apartment BalconyCompact Solar Living
2,598
3,019
CampingLightweight & Versatile
2,500
2,842

Not rated for both units (minimum threshold unmet): UPS, RV Living, Home Backup, Food Truck.

Full specifications

RIVER 2 Pro
$389
Updated Oct 25
See live price β†’
SOLIX C1000 Gen 2
$499.99β˜… our pick
Updated Oct 25
See live price β†’
Capacity (Wh)
768
1024
Output (W)
800
2000
Surge Peak
1600W
3000W
AC Outlets
4
5
240V Outlets
0
0
30A RV Outlets
0
0

ᡈ Derived: price Γ· rated capacity. See the data behind our comparisons β†’

Comparison ToolAdd more power stations, side by sideOpen Tool β†’
How these numbers are produced

Numeric verification

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

Owner claims

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

Runtime model

Runtime = (rated capacity Γ— 0.85 inverter efficiency) Γ· 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 β†’

Class ranking (the star rating)

Each unit's star score is a category ranking, not customer reviews β€” 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 5β˜…. Here, RIVER 2 Pro rates 4.7/5 (84th percentile of 20 Compact-class units), and SOLIX C1000 Gen 2 rates 4.9/5 (96th percentile of 27 Everyday-class units).

How the class ranking is computed β†’

Test Notes & Caveats

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

[CAUTION]

RIVER 2 Pro: 62dB Published

62dB is about as loud as a normal conversation. The SOLIX C1000 Gen 2 is rated 35dB, and the two are not the same kind of figure: the RIVER 2 Pro's is a MAXIMUM under heavy charge and discharge, while the SOLIX C1000 Gen 2's is its maker's best case β€” so the real gap can only be narrower than the numbers suggest, and may even run the other way. For most people, fan noise around 45dB and up is where sleep starts to suffer.

[NOTE]

RIVER 2 Pro: Fixed Capacity

The RIVER 2 Pro is sealed at 768Wh β€” fine if that covers you, but it's the ceiling. By contrast the SOLIX C1000 Gen 2 can add expansion batteries, though the first thing it has over the RIVER 2 Pro is its own 1,024Wh base β€” expansion is the step after that, for the buyer who would outgrow 1,024Wh as well.

[NOTE]

Surge Power: Ratio and Ceiling Disagree

The RIVER 2 Pro holds the higher surge-to-continuous ratio (2Γ— vs 1.5Γ—), but the SOLIX C1000 Gen 2 holds the higher absolute surge ceiling β€” 3,000W against 1,600W. These measure different things. The ratio says how much headroom an inverter keeps above its own rating; the ceiling says how big a startup spike it can actually swallow. A motor draws a number of watts at switch-on, not a multiple of someone else's rating, so on raw starting ability the SOLIX C1000 Gen 2 is the stronger unit here β€” while the RIVER 2 Pro is the one running further below its own limit at steady state.

[NOTE]

UPS Switchover: ≀10ms vs ≀30ms

Both list a UPS mode, at different rated speeds. The SOLIX C1000 Gen 2 is rated ≀10ms β€” quick enough on paper that desktop PCs and routers should ride through, treating that as the rating it is. The RIVER 2 Pro is rated ≀30ms β€” a transfer this long is one many desktops will NOT ride through, so plan on reboots for sensitive gear. If a computer with unsaved work is the thing being protected, the stated class is worth the attention; nothing here is a lab result.

[NOTE]

Warranty: No Difference

Both units carry the same 5-year warranty, so coverage isn't a tiebreaker here. Worth saying because the per-dollar framing can suggest otherwise: the RIVER 2 Pro works out at 14.3 years of cover per $1,000 spent against the SOLIX C1000 Gen 2's 9.4, but that spread is the price gap, not the terms.

[NOTE]

Battery Lifespan in Real Years

The SOLIX C1000 Gen 2 is rated for 4,000 cycles vs 3,000. In real life: at daily use, that's 11 vs 8.2 years. At weekend use (twice a week), it's 38 vs 29 years. One caution reading years across different sizes: a cycle is 1,024Wh on the SOLIX C1000 Gen 2 and 768Wh on the RIVER 2 Pro, so count lifetime energy β€” roughly 4,096 kWh against 2,304 kWh over the rated life. After hitting the cycle limit, the battery doesn't die β€” it drops to ~80% of original capacity, which is still very usable.

Full record above β€” the Test Desk pick is the SOLIX C1000 Gen 2.

Check SOLIX C1000 Gen 2 price β†’or check the RIVER 2 Pro price
05

Ownership Analysis

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

Lifetime value

RIVER 2 ProSOLIX C1000 Gen 2

β”‚ warranty ends Β· Reaching the cycle rating means ~80% capacity remains β€” degraded, not dead.

RIVER 2 Pro
SOLIX C1000 Gen 2
Purchase price
$389.00
$499.99
Lifetime energy delivered
2,304 kWh
4,096 kWh
Cost per lifetime kWh
$0.15
$0.13
Cost per warranty year
$70/yr
$106/yr
Battery lifespan
8.2yr daily Β· 28.8yr weekends Β· 57.7yr weekly
11yr daily Β· 38.5yr weekends Β· 76.9yr weekly

Analyst note

The RIVER 2 Pro is cheaper to buy, but the SOLIX C1000 Gen 2 is cheaper to own. At $0.13/kWh over its lifetime vs $0.15/kWh, the SOLIX C1000 Gen 2's higher cycle life and capacity make each dollar go further over the years.

Brand trust

EcoFlow

Ecosystem

Largest in portable power β€” 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 β€” 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 β€” Reddit r/Ecoflow_community (~31K members), multiple Facebook groups, and an official community forum

App experience

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

Unique strength

Fastest-charging technology (X-Stream), deepest product ecosystem, and most active innovation cadence. At the top of the range sit two whole-home paths: the TITAN line, one 5 kWh unit that grows to 30 kWh, and the DELTA Pro Ultra platform, which stacks batteries and inverters further β€” flagship paths, not line-wide features.

Worth knowing

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 β†’

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 β€” 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) Β· 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 β€” 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 β†’

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 2 Pro

FIXED CAPACITY

Fixed at 768Wh, with no expansion β€” so size it for your needs up front rather than planning to add capacity later.

Accepts up to 220W of solar. Limited to a single portable panel.

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

SOLIX C1000 Gen 2

EXPANDABLE

Supports Anker expansion batteries, so you can add capacity later without replacing the base unit β€” useful if your needs may climb past 1,024Wh.

Accepts up to 600W of solar. Suitable for a 1-2 panel setup.

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

Expansion batteries are Anker-specific. You're investing in the Anker ecosystem.

RIVER 2 ProSOLIX C1000 Gen 2

Analyst note

The RIVER 2 Pro is sealed at 768Wh, which is fine if that covers you. The SOLIX C1000 Gen 2 starts at 1,024Wh and can grow beyond it with Anker expansion batteries β€” though at this size expansion means longer runtimes on the same loads, not a path to home backup. More hours, not more house.

06

What Owners Report

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

EcoFlow RIVER 2 Pro

Owner commentary aimed squarely at the RIVER 2 Pro is thin. Our researcher found most RIVER 2 discussion mixes up the base model, the Max and the ProA0. The clearest thread is fan noise. EcoFlow's own FAQ says the RIVER 2 Pro may reach 62dB when charging or discharging at high wattageA2, and one owner cut into the internal plastic to fit quieter fansA1. A Facebook post asks whether UPS use affects battery lifeA3. Only its title could be retrievedA0.

β€œWill using River 2 Pro as a UPS affect battery life ...”
β€” Facebook β€” EcoFlow Club group post title, unknown

Sources

ctrl-alt-rees.com

Anker SOLIX C1000 Gen 2

Coverage of the C1000 Gen 2 is fuller. Reviewers single out charging speed. HyperFlash takes it from empty to full in roughly 49 minutes, quicker than the original C1000B1. They note its output runs a standard 1,500W space heater with headroom to spareB3, and several call it the mid-size unit to beat this yearB4. The common complaint is the fans. They're near silent under 200W and climb to around 55dB past 1,000W during fast charging or heavy outputB2.

β€œFast HyperFlash charging β€” a full recharge in roughly 49 minutes, noticeably quicker than the original C1000's ~58-80 minutes.”
β€” thepowerpick.com / macrumors.com β€” Anker SOLIX C1000 Gen 2 review, 2026

Sources

thepowerpick.com Β· macrumors.com Β· outdoorgearlab.com Β· technerdo.com Β· mensjournal.com Β· powerstationadvisor.com

Sources & Research Notes

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

Recurring owner themes

  • Fan noise at high wattage charging/discharging is a consistent owner and manufacturer-acknowledged complaint, severe enough that some owners physically mod the unit with quieter fans. [RIVER 2 Pro Β· 2 entries]
  • Fast charging and higher output over the original are the standout gains; fan noise under load or fast charging is the top complaint. [SOLIX C1000 Gen 2 Β· 3 entries]
  • A1

    β€œI've since performed the same mod on my RIVER 2 PRO and it works great for that unit, too - although it did involve cutting away some of the internal plastic.”

    ctrl-alt-rees.com blog β€” 'EcoFlow RIVER 2 Noisy Fan Fix!' Β· 2022-11-17 Β· [negative]

  • A2

    β€œWhen charging and discharging at high wattage, RIVER 2 Max and RIVER 2 Pro may make a noise up to 62db.”

    EcoFlow official product page β€” RIVER 2 Series specs/FAQ footnotes Β· unknown Β· [negative]

  • A3

    β€œWill using River 2 Pro as a UPS affect battery life ...”

    Facebook β€” EcoFlow Club group post title Β· unknown Β· [mixed]

  • B1

    β€œFast HyperFlash charging β€” a full recharge in roughly 49 minutes, noticeably quicker than the original C1000's ~58-80 minutes.”

    thepowerpick.com / macrumors.com β€” Anker SOLIX C1000 Gen 2 review Β· 2026 Β· [positive]

  • B2

    β€œFan noise is the single most common complaint β€” nearly silent at low load (about 35 dB under 200W), but the fans ramp up audibly during fast charging or heavy output, reaching around 55 dB at 1,000W-plus.”

    outdoorgearlab.com / technerdo.com β€” C1000 Gen 2 review Β· 2026 Β· [negative]

  • B3

    β€œThe higher continuous output crosses a useful threshold over the original β€” enough to run a standard 1,500W space heater with headroom to spare.”

    thepowerpick.com / mensjournal.com β€” C1000 Gen 2 review Β· 2026 Β· [positive]

  • B4

    β€œReviewers describe it as a refined, powerful, fast-charging update to a popular 1kWh platform, widely rated the mid-size unit to beat in 2026.”

    thepowerpick.com / powerstationadvisor.com β€” C1000 Gen 2 review Β· 2026 Β· [positive]

Research compiled October 25, 2026.

07

What Owners Actually Report

Drawn from 35 comments on independent review channels β€” not from retailer reviews, which skew to the first week of ownership. Each line is our summary of one commenter's claim, linked to the original. We record what they said, including where it contradicts the spec sheet.

EcoFlow RIVER 2 Pro

32 claims from 21 comments Β· 27 from owners Β· 8 with figures

Runtime
5 Β· 0% negative
Size & weight
2 Β· 0% negative
Solar input
2 Β· 0% negative
Inverter & surge
3 Β· 23% negative
App & firmware
3 Β· 0% negative

What owners complain about

  • Wildly fluctuating DC output on two separate units bought from different retailers.

    Build qualityowner1 agreedsource β†’

  • Does tend to self-discharge, so he keeps it on the low 100W power setting.

    Idle drainowner3 agreedsource β†’

  • Unit would not power on within a week of purchase despite a full charge.

    Durabilityownersource β†’

What owners praise

  • Ran a portable fridge/freezer in a car for 5 hours in 110F Tucson heat, still at 78%.

    Runtimemeasuredowner40 agreedsource β†’

  • At 17 lbs it is his top pick for grab-and-go power.

    Size & weightmeasuredowner4 agreedsource β†’

  • Recharges back to 100% in less than an hour.

    Chargingmeasuredowner4 agreedsource β†’

Anker SOLIX C1000 Gen 2

22 claims from 14 comments Β· 18 from owners Β· 6 with figures

Price & value
4 Β· 0% negative
Runtime
3 Β· 15% negative
UPS switchover
2 Β· 0% negative
Inverter & surge
1 Β· 0% negative
Solar input
1 Β· 0% negative

What owners complain about

  • Gen 2 loses the gen 1's ability to add an expansion battery.

    Expandability23 agreedsource β†’

  • Same app failure as his other brands: paired devices go missing on later launches.

    App & firmwareowner2 agreedsource β†’

  • Can only pull 100W from the C1000 Gen 2's 12V ports and cannot confirm how XT60i sensing works.

    Otherownersource β†’

What owners praise

  • Two units keep his gas furnace, three fridge/freezers and network alive for 5+ hours.

    Runtimemeasuredowner15 agreedsource β†’

  • Anker 1000 gen 2's edge is a 2000W inverter, also at 25 pounds.

    Inverter & surgemeasuredowner8 agreedsource β†’

  • Got the C1000 gen 2 on sale for $379 plus a $219 200W panel.

    Price & valuemeasuredowner6 agreedsource β†’

Claims are weighted by how specific they are, whether the commenter owns the unit, and how many readers agreed. Comments that mention a product under a rival's review count for more, because the commenter had no reason to be there. This is what buyers report, not our test results β€” for measurements we ran ourselves, see the methodology.

08

Who Should Buy Which

Buy the RIVER 2 Pro if you…

  • β†’Light travellers: it's nearly eight pounds lighter than the Anker.
  • β†’Buyers who know 768Wh covers them: phones, lights, a laptop and a CPAP night, with four AC outlets to share.
  • β†’Buyers who want the lower price, at $349.

This is you β€” check the RIVER 2 Pro price

Buy the SOLIX C1000 Gen 2 if you…

  • β†’Anyone whose list might grow: it takes Anker expansion batteries.
  • β†’Solar users: 600W of panel input to the RIVER 2 Pro's 220W.
  • β†’Desk backup: rated to switch to battery in 10ms or less.
  • β†’Anyone who wants to run a space heater: reviewers note its output covers a 1,500W one with headroom to spareB3.

This is you β€” check the SOLIX C1000 Gen 2 price

If neither fits

Our weekend camping basket needs 2,100Wh and a van-life day 4,685Wh. Neither unit gets close on its own. Look at a larger station for those. An expansion battery on the Anker gets you partway.

09

The Bottom Line

The C1000 Gen 2 is the better station by almost every measure on this page. It holds more, runs bigger loads, refills faster from the sun and takes an expansion battery. It's also the cheaper one per lifetime kilowatt-hour.

The RIVER 2 Pro is for someone who knows exactly what they'll plug in and wants to carry less. If there's any chance your list grows, the $181 is worth paying.

10

Frequently Asked Questions

Answers drawn from the spec record and cited owner research.

Is the Anker SOLIX C1000 Gen 2 worth $181 more than the EcoFlow RIVER 2 Pro?

For most buyers, yes. It holds 1,024Wh to 768Wh, runs 2,000W to 800W and takes Anker expansion batteries. It also works out cheaper per lifetime kilowatt-hour, at $0.13 against $0.15, because it holds more and is rated for more cycles. The RIVER 2 Pro is lighter, at 17.2 lb to 24.9.

Can I add more capacity to either of these later?

Only the SOLIX C1000 Gen 2. It accepts Anker expansion batteries, so you can add capacity without replacing the unit. The RIVER 2 Pro is sealed, and its 768Wh is fixed for the life of the unit.

Which one is quieter?

Neither is quiet under heavy load. EcoFlow says the RIVER 2 Pro may reach 62dB when charging or discharging at high wattage. Reviewers report the C1000 Gen 2 near silent under 200W and around 55dB past 1,000W. The figures come from different sources, so they are not a measured comparison.

How fast does each recharge?

The C1000 Gen 2 recharges from the wall via HyperFlash in roughly 49 minutes and accepts up to 600W of solar input. The RIVER 2 Pro accepts up to 220W of solar, so a solar recharge takes considerably longer.

Which is better for protecting a router or networking equipment during outages?

The C1000 Gen 2. It is rated to switch to battery in 10ms or less, against 30ms or less for the RIVER 2 Pro. Routers usually ride through either, but many desktop PCs will not ride through a 30ms gap. Both figures are the makers' own ratings.

Check SOLIX C1000 Gen 2 price β†’

Where to buy

RIVER 2 Pro

EcoFlow RIVER 2 Pro

$389.00

Check current price

$389.00 Β· direct from EcoFlow

Last checked 28 days ago. Prices move β€” check before you buy.

SOLIX C1000 Gen 2

Anker SOLIX C1000 Gen 2Pick

$499.99

Check current price

$499.99 Β· direct from Anker

down from $530 Β· 6% below usual

Last checked 28 days ago. Prices move β€” check before you buy.

Prices may vary by retailer and are subject to change.