Question 1

Which is better, Anker 521 PowerHouse (256Wh) or EcoFlow River 2 (256Wh)?

Accepted Answer

Both products scored 8.6/10 in our testing — it's a tie. Choose based on which features matter most to you.

Question 2

Is the Anker 521 PowerHouse (256Wh) worth it over the EcoFlow River 2 (256Wh)?

Accepted Answer

The Anker 521 PowerHouse (256Wh) scores 8.6/10 while the EcoFlow River 2 (256Wh) scores 8.6/10. The Anker 521 PowerHouse (256Wh) is our "Best Overall" pick in the Best Power Banks with AC Outlet 2026 category.

Anker 521 PowerHouse (256Wh) vs EcoFlow River 2 (256Wh): Which to Buy?