Which one runs a refrigerator during an outage?

The EcoFlow DELTA 3 Max. Its 2,048Wh capacity and 2,400W output with 4,800W surge handle a fridge's startup draw. The Anker SOLIX F1500 does not publish capacity or output figures, so it is a poor bet for that job.

Is the EcoFlow worth about $250 more?

Yes if you need whole-home backup or heavy tools. The DELTA 3 Max adds 2,048Wh, 2,400W output, a 10ms transfer switch and LFP cells. If you only charge small devices, the Anker at $599.99 is the better spend.

Which is easier to move around?

The Anker is likely lighter, but its weight is not published. The DELTA 3 Max weighs 20.3 kg, about 45 lb, which is a two-hand lift. Plan a fixed spot for either one.

The DELTA 3 Max uses automotive-grade LFP cells, which typically deliver more cycles than other lithium chemistries. Anker does not state the SOLIX F1500's cell type or cycle rating, so there is no figure to compare.

Can either keep my internet running through a blackout?

The DELTA 3 Max has a 10ms auto-switch, fast enough for NAS systems and servers. The Anker listing does not state a transfer time, so assume manual switching.

How fast do they recharge?

The DELTA 3 Max goes 0-80% in 68 minutes on wall or generator power, with up to 500W solar input. Anker lists fast charging but gives no recharge time.

EcoFlow DELTA 3 Max Portable Power Station vs Anker SOLIX F1500 Portable Power Station

Buy the EcoFlow DELTA 3 Max if you need to run a whole home or heavy appliances through an outage. Its 2,048Wh capacity, 2,400W output and 4,800W surge are in a different class from the Anker SOLIX F1500. The DELTA 3 Max has sold for $849.00 to $878.99 since November 1, 2026, while the SOLIX F1500 has been $599.99 as of November 5, 2026. Choose the Anker only if your loads are light and the roughly $250 gap matters more than capacity and output.

Ask our shopping agent

It checks today's price at every store, compares the alternatives and answers in about a minute.