Anker SOLIX C300 vs EcoFlow RIVER 3

What separates these two

• CapacityThe EcoFlow states 245 Wh (nameplateNameplate capacity The capacity printed on the box, in watt-hours (Wh): what the battery holds when new. You get less out of it in use, because the station keeps some back to protect the battery and loses some turning it into 240 V or 12 V power.); the Anker states 288 Wh (nameplate), 18% more.This means the Anker holds more energy, so it can run the same things for longer before it needs charging.
  Sources

  Anker: manufacturer page (au.ankersolix.com) read 29 Sept 2026 288Wh Capacity (24Ah@12V) ｜ 300W Output

  EcoFlow: manufacturer page (au.ecoflow.com) read 29 Sept 2026 245Wh

• WeightThe EcoFlow states 3.5 kg (unit onlyUnit only The station by itself, without cables, chargers or a bag.); the Anker states 4.1 kg (unit only), 18% heavier.This means the EcoFlow is lighter to carry.
  Sources

  Anker: manufacturer document (cdn.shopify.com) read 29 Sept 2026 4.13 kg / 9.1 lb

  EcoFlow: manufacturer page (au.ecoflow.com) read 29 Sept 2026 3.5kg

Price and price per Wh aren't compared here yet. That needs a second shop selling each one for about the same price (within 10%), which shows the price is real. Today: price, Anker $399 and EcoFlow $299; price per Wh, Anker 138.5¢ and EcoFlow 122.0¢.

Can't be compared as the brands list themCan't be compared The two brands give this figure in different ways, or only one brand gives it. For example, one counts battery charges until 80% of the capacity is left and the other until 70%. Set side by side, the numbers would mislead, so both are shown and neither is put ahead.

• Wall charging, empty to fullThe EcoFlow states 60 min (no fast modeAC charging Charging from a household power point. A fast-mode figure uses the brand's quickest charging setting, so it isn't compared with standard charging. mentioned, empty to full, charging at 300 W). The brand doesn't give this figure for the Anker.This means the two can't be compared on this until both brands publish it.
  Sources

  EcoFlow: manufacturer page (au.ecoflow.com) read 29 Sept 2026 300W, 0-100% in 60 min

• Cycle lifeThe EcoFlow states 3,000 cycles (until 80% of the original capacity is left). The brand doesn't give this figure for the Anker.This means the two can't be compared on this until both brands publish it.
  Sources

  EcoFlow: manufacturer page (au.ecoflow.com) read 29 Sept 2026 LiFePO4, 3000 cycles to 80% capacity

• Stated warrantyThe Anker states 5 years. The brand doesn't give this figure for the EcoFlow.This means the two can't be compared on this until both brands publish it.
  Sources

  Anker: manufacturer page (www.ankersolix.com) read 29 Sept 2026 5 Years

• AC surgeThe Anker states 600 W (how long it lasts not stated); the EcoFlow states 600 W (how long it lasts not stated). Neither brand says how long its surgeSurge A short burst above the continuous rating, for appliances that need a kick to start, like a fridge compressor or a power tool. It lasts from a fraction of a second to a few seconds. lasts, so they aren't compared.This means the two numbers were measured in different ways, so setting one against the other would mislead.
  Sources

  Anker: manufacturer page (au.ankersolix.com) read 29 Sept 2026 Power devices with 300W (600W surge).

  EcoFlow: manufacturer page (au.ecoflow.com) read 29 Sept 2026 1 port, 230V~50Hz, 300W total （Surge 600W, X-Boost 600W）

A difference is listed above only when both brands measure a figure the same way and the gap is at least: capacity: 10% or more; price: 10% or more; price per Wh: 10% or more; AC output, non-stop: 15% or more; weight: 8% or more; 12 V car socket: any difference; solar input: 20% or more; wall charging, empty to full: 20% or more; cycle life: 20% or more; stated warranty: any difference; UPS switchover: 5 ms or more; expansion batteries: one has it and the other doesn't; AC surge: 15% or more. Every comparison on this site uses the same gaps.

Fridge runtime for both

How long each would run an example fridge, a Dometic CFX5 45, with no solar and no driving. Its manufacturer says it uses 0.76 Ah an hour at 12 V when it is 32 °C outside and 4 °C inside. The brands don't publish some of the figures this needs. Where someone has tested the station, their result is used; otherwise both use the same ranges, taken from tests of other stations.

The middle estimates are 3 hours apart.This means the Anker is likely to run the fridge for longer, but that one unknown figure could close the gap.

The biggest unknown is the station's own drawStation's own draw Power the station uses itself while an outlet is switched on: its screen, its electronics and the circuit that makes 12 V or 240 V. Few brands publish it. Over 24 hours it can add up to as much as a small fridge uses. with the 12 V socket12 V car socket A cigarette-lighter style socket that runs 12 V gear, like a camping fridge, directly. Its rating is in amps (A): a 10 A socket supplies up to about 120 W. on. No brand publishes it and no test of this station was found, so 1–12 W is assumed. On its own, it can change the Anker's answer by up to 12 hours, which is more than the gap between the two.

Try another fridge, add solar or driving, or change the assumed ranges:

Loading the runtime tool…

Charging paths

“Not stated” means the brand's website and manual don't give that figure (checked 29 Sept 2026).

All the specs side by side

Capacity is the nameplate figure in watt-hours (Wh), the one on the box. AC output is the power a station can supply non-stop, not a short burst. Weight is the station on its own. A figure measured another way is shown with a note saying how, and isn't compared with the others.

Where this pair sits

Price record

Every price

What each shop charges for the station on its own, cheapest first. Kits (the station sold with extras, like a solar panel) are on each product's page and don't count here.

What neither brand tells you

These figures would help answer the questions above, but neither brand gives them (checked 29 Sept 2026):

• Usable capacityUsable capacity How much of the box capacity you can actually draw out. Most brands don't publish it, so the box figure is the only one that can be compared.: how much of the nameplate capacityNameplate capacity The capacity printed on the box, in watt-hours (Wh): what the battery holds when new. You get less out of it in use, because the station keeps some back to protect the battery and loses some turning it into 240 V or 12 V power. you can actually use. The fridge runtime above uses test results for how much comes out of the socket instead.
• The station's own drawStation's own draw Power the station uses itself while an outlet is switched on: its screen, its electronics and the circuit that makes 12 V or 240 V. Few brands publish it. Over 24 hours it can add up to as much as a small fridge uses. with the 12 V socket12 V car socket A cigarette-lighter style socket that runs 12 V gear, like a camping fridge, directly. Its rating is in amps (A): a 10 A socket supplies up to about 120 W. on: the fridge runtime above uses a test of the station if one was found, otherwise a range of 1–12 W.
• How much of the capacity comes out of the 12 V socket12 V car socket A cigarette-lighter style socket that runs 12 V gear, like a camping fridge, directly. Its rating is in amps (A): a 10 A socket supplies up to about 120 W.: the fridge runtime above uses a test of the station if one was found, otherwise a range of 75–92%.
• How long the AC surgeSurge A short burst above the continuous rating, for appliances that need a kick to start, like a fridge compressor or a power tool. It lasts from a fraction of a second to a few seconds. lasts: without it, two surgeSurge A short burst above the continuous rating, for appliances that need a kick to start, like a fridge compressor or a power tool. It lasts from a fraction of a second to a few seconds. figures can't be compared.
• Expansion batteriesExpansion batteries Extra batteries made to plug into this station to add capacity..