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EcoFlow makes the miniature power station even smaller

September 7, 2026 Thomas Ricker

The River 260 Gen4 (on the table) powering a portable fridge, Starlink Mini, and charging a phone. | Image: EcoFlow

If you're in the market for a tiny power station that punches well above its size and weight then have a look at EcoFlow's new fourth-generation River series.

The River 260 Gen4 features a 256Wh capacity battery while the 520 Gen4 packs in 512Wh - storing about 2.5x and 5x the energy of the largest airline-approved power banks, respectively. Better yet, the batteries are built using longer-lasting LFP chemistry that's far less volatile. The River 260 Gen4 features four USB ports, and 300W of max continuous output delivered out its lone AC jack. The River 500 Gen4 features the same USB port selection but offers a pair of AC jacks good for 5 …

Read the full story at The Verge.

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