EcoFlow vs Anker SOLIX: power stations compared size by size

Warranty, returns and support

The two lineups on this site

Warranty, registration and returns

Both brands reach 5 years of warranty on every model compared here. What differs is which models need registration to get there.

• EcoFlow: its warranty policy lists 5 years on the DELTA 3, DELTA 3 Plus, DELTA Pro 3 and RIVER 3 Plus. The DELTA 3 Classic and DELTA 3 Max get 3 years, plus 2 more when you register them.
• Anker SOLIX: Anker's warranty table lists 60 months (5 years) on its current AC power stations. Its registration page says registering activates the 5-year protection, so register the unit after you buy it.

Under each brand's own return policy, you have 30 days from delivery, and both ask for the original packing.

Refurbished units differ more. EcoFlow's refurbished page says the warranty cover is the same as for new machines, and that refurbished machines are final sale but can be returned within 30 calendar days. Anker gives its refurbished units a 6-month warranty and a 30-day money-back guarantee.

Of the models on this site, EcoFlow lists refurbished DELTA 3 Plus and DELTA Pro 3 units; Anker lists the C300, C1000 Gen 2, C2000 Gen 2 and F3800 Plus. Compare both programs on refurbished power stations.

Charging speed and solar input

The makers' wall charging figures at each matched size:

• Under 300 Wh: RIVER 3 Plus, 60 minutes to full at 380 W. SOLIX C300, 70 minutes to full.
• 1 kWh: SOLIX C1000 Gen 2, 49 minutes at 1,600 W. DELTA 3 and DELTA 3 Plus, 56 minutes at 1,500 W. DELTA 3 Classic, 60 minutes at 1,400 W.
• 2 kWh: SOLIX C2000 Gen 2, 88 minutes to full at 1,800 W. DELTA 3 Max, 0 to 80% in 68 minutes at 1,800 W; EcoFlow does not state a full-charge time.

Solar input is the most panel power a station accepts, so it limits how fast panels can recharge it. Anker rates more at 1 kWh and 2 kWh: 600 W on the C1000 Gen 2 and 800 W on the C2000 Gen 2, against 500 W on the DELTA 3, DELTA 3 Classic and DELTA 3 Max. The exception is the DELTA 3 Plus, at 1,000 W across two inputs.

Under 300 Wh, the RIVER 3 Plus takes 220 W against 100 W on the C300. Above 3 kWh, Anker rates the F3800 Plus at 3,200 W and EcoFlow rates the DELTA Pro 3 at 2,600 W.

Expansion, UPS switchover and apps

Expansion depends on the model, not the brand:

• EcoFlow: RIVER 3 Plus to 858 Wh, DELTA 3 and DELTA 3 Plus to 5,000 Wh, DELTA Pro 3 to 12,000 Wh. EcoFlow does not state an expansion capacity for the DELTA 3 Classic or DELTA 3 Max.
• Anker SOLIX: C2000 Gen 2 to 4,096 Wh, F3800 Plus to 26,880 Wh. Anker does not state one for the C300 or C1000 Gen 2.

So at 1 kWh only EcoFlow lists expansion (DELTA 3 and DELTA 3 Plus), and at 2 kWh only Anker does (C2000 Gen 2). If you may need more capacity later, check that the model you pick lists an expansion figure.

A UPS switchover is the time a plugged-in station takes to move your devices to battery when wall power cuts out. Every model from both brands on this site lists one: 10 ms or under, except 20 ms on the SOLIX F3800 Plus.

Every model here works with its maker's app. EcoFlow lists time-of-use and storm warning alerts in the app for the DELTA 3 and DELTA 3 Plus. Anker says its app can monitor, control and schedule power on the C1000 Gen 2.

Which to choose for home backup

For home backup, battery size sets runtime, so matched models from the two brands run a load for the same time:

• A 1/2 HP sump pump (920 W running, 2,645 W to start, within the surge rating of each 1 kWh and 2 kWh model here): 54 minutes of nonstop pumping on the DELTA 3 or C1000 Gen 2, 1.8 hours on the DELTA 3 Max or C2000 Gen 2.
• An 80,000 BTU gas furnace blower: 2.1 hours on either 1 kWh model, 4.1 hours on either 2 kWh model. A hard-wired furnace needs a transfer switch or power inlet installed by a licensed electrician. Never back-feed a house through an outlet.
• A 25 cu ft French-door refrigerator: 9.9 hours at 1 kWh, 19 hours at 2 kWh, 36 hours on the SOLIX F3800 Plus (3,840 Wh) and 38 hours on the DELTA Pro 3 (4,096 Wh).

Above 3 kWh, Anker rates the F3800 Plus at 6,000 W against 4,000 W for the DELTA Pro 3 and lists expansion to 26,880 Wh against 12,000 Wh. EcoFlow lists a 10 ms switchover against 20 ms, and the DELTA Pro 3 weighs 113.54 lb against 135.6 lb.

Which to choose for camping

For camping, Anker is lighter in each matched pair: 9.1 lb against 10.4 lb under 300 Wh, 24.9 lb against 27.6 lb at 1 kWh and 41.7 lb against 44.8 lb at 2 kWh.

• 12 V fridge: a Dometic CFX3 35 runs 20 hours on the RIVER 3 Plus or C300, and 3.0 days on the DELTA 3 or C1000 Gen 2. Skip the DELTA 3 Classic for a 12 V fridge: EcoFlow states it has no 12 V output.
• Starlink Mini: from the 12 V socket it runs 5.9 hours on either small model and 21 hours on the DELTA 3 or C1000 Gen 2.
• Solar at the site: the RIVER 3 Plus takes 220 W of panels against 100 W on the C300. At 1 kWh, the DELTA 3 Plus takes 1,000 W, the C1000 Gen 2 600 W and the DELTA 3 500 W.

If you camp with a CPAP, check with your doctor or equipment supplier about running it on battery power. An AirSense 11 on AC runs 3.5 hours on the RIVER 3 Plus, 3.6 hours on the C300 and 12 hours on either 1 kWh model.

Other comparisons

• EcoFlow DELTA 3 vs Anker SOLIX C1000 Gen 2: which to buy
• Jackery vs EcoFlow: which to buy for home backup or camping
• Jackery vs Anker SOLIX: power stations compared size by size
• EcoFlow vs BLUETTI: power stations compared size by size