Main trade-off
Anker SOLIX C1000 Gen 2
It weighs 6.7lb more.
Head-to-head
Choose C1000 Gen 2 when ordinary AC loads can exceed 800W or the extra stored energy is worth carrying more weight. Choose RIVER 2 Pro when the equipment stays below its limits and USB-C recharging helps your existing kit. The Anker's larger inverter does not mean its 2000W battery rating also applies while operating in bypass.
Before you choose
Consider an ordinary 1200W appliance used by itself. That exceeds RIVER 2 Pro's 800W rated AC output, while it falls below C1000 Gen 2's battery and bypass ceilings.
What this is based on
The example is a 1200W ordinary AC load. It is above 800W and below both 2000W battery and 1800W bypass ratings. Startup surges are a separate check.
Main trade-off
It weighs 6.7lb more.
Main trade-off
Ordinary AC output is capped at 800W.


Compare C1000 Gen 2 and RIVER 2 Pro for a temporary work desk, an ordinary AC load above 800W and charging from a USB-C supply.
Choose C1000 Gen 2 when ordinary AC loads can exceed 800W or the extra stored energy is worth carrying more weight. Choose RIVER 2 Pro when the equipment stays below its limits and USB-C recharging helps your existing kit. The Anker's larger inverter does not mean its 2000W battery rating also applies while operating in bypass.
Winner by situation
The example exceeds River's 800W rating. Check startup and the Anker mode limit.
River explicitly accepts USB-C input. Anker's USB-C specification is output.
River weighs 18.2lb versus 24.9lb, provided the capacity is sufficient.
Anker's bypass limit is 1800W and River's rated output is lower.
What matters in practice
Consider an ordinary 1200W appliance used by itself. That exceeds RIVER 2 Pro's 800W rated AC output, while it falls below C1000 Gen 2's battery and bypass ceilings.
The example is a 1200W ordinary AC load. It is above 800W and below both 2000W battery and 1800W bypass ratings. Startup surges are a separate check.
RIVER 2 Pro accepts up to 100W through its USB-C input, giving a compatible USB-C charger another job. C1000 Gen 2's USB-C rating describes output to devices, while its documented recharge routes use AC or DC input.
A USB-C output rating does not establish USB-C input support. River explicitly documents bidirectional USB-C operation.
For a constant 100W load, dividing nameplate energy by load gives ideal upper bounds of about 10.2 hours and 7.7 hours before conversion loss, reserve and the station's own consumption. Choose Anker if extra energy is more valuable than carrying 6.7lb more.
1024Wh ÷ 100W = 10.24h and 768Wh ÷ 100W = 7.68h. Weight difference is 24.9 minus 18.2 = 6.7lb. Actual runtime is lower and load-dependent.

Anker SOLIX, C1000 Gen 2
A 24.9-pound 1,024Wh station with a 2,000W inverter, 140W USB-C and a 49-minute app-enabled fast-charge mode.

EcoFlow, EFR620
A 768Wh camping station with 800W continuous AC output and a useful 100W USB-C port. It adds battery reserve without reaching full 1kWh weight.
Meaningful differences
| What changes | Anker SOLIX C1000 Gen 2 | EcoFlow RIVER 2 Pro | Why it matters |
|---|---|---|---|
| Stored energy | 1024Wh | 768Wh | Energy capacity informs runtime, while inverter watts decide whether the load can run. |
| Ordinary AC output | 2000W battery output, 1800W bypass limit | 800W rated AC output | Use ordinary ratings rather than boosted appliance modes. |
| Weight | 24.9lb | 18.2lb | Daily carrying changes the value of extra output and capacity. |
| USB-C route | Up to 140W output, recharge through documented AC or DC routes | Up to 100W USB-C input and output | River can reuse a compatible USB-C supply for recharging. |
| Solar input ceiling | 600W | 220W | Panel electrical compatibility must be checked separately from the wattage ceiling. |
What you give up
Recommendation switch
Choose Anker SOLIX C1000 Gen 2. C1000 Gen 2 provides the larger ordinary inverter capacity.
Choose EcoFlow RIVER 2 Pro. RIVER 2 Pro accepts USB-C recharging and weighs 18.2lb.
What matters in practice
Consider an ordinary 1200W appliance used by itself. That exceeds RIVER 2 Pro's 800W rated AC output, while it falls below C1000 Gen 2's battery and bypass ceilings. Choose Anker for that verified load, checking startup behavior and the appliance's actual label. Do not use EcoFlow's boosted appliance mode as evidence that every 1200W device will work normally. Lower-power electronics may not need the larger inverter at all.
RIVER 2 Pro accepts up to 100W through its USB-C input, giving a compatible USB-C charger another job. C1000 Gen 2's USB-C rating describes output to devices, while its documented recharge routes use AC or DC input. Choose River if reusing that USB-C supply is a real travel or desk requirement. Expect charging power and time to depend on the negotiated profile rather than the number printed on the charger.
For a constant 100W load, dividing nameplate energy by load gives ideal upper bounds of about 10.2 hours and 7.7 hours before conversion loss, reserve and the station's own consumption. Choose Anker if extra energy is more valuable than carrying 6.7lb more. Choose River for frequent carrying when the lower energy budget is enough. Neither figure is a promised laptop or monitor runtime.
What the facts say
Useful conclusions from the current portable power stations comparison, followed by the checked facts used to reach them.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Anker SOLIX C1000 Gen 2 |
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| EcoFlow RIVER 2 Pro |
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Ready to choose?
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Run a verified ordinary AC load above 800W within the unit's limits
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Recharge from a compatible USB-C supply up to 100W
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