EcoFlow Shrinks Its Mini Power Station Even Further

If you’re on the hunt for a compact power station that delivers impressive performance, check out the latest fourth-generation River series from EcoFlow.

The River 260 Gen4 boasts a 256Wh capacity battery, while the River 520 Gen4 steps it up with 512Wh—offering about 2.5x and 5x the energy of the largest airline-approved power banks, respectively. These batteries utilize durable LFP chemistry, which is significantly less volatile. The River 260 Gen4 comes equipped with four USB ports and provides a maximum continuous output of 300W through its single AC jack. In contrast, the River 520 Gen4 features the same USB port setup but includes two AC jacks capable of delivering 500W of continuous output.

Both Gen4 models showcase exceptional energy density, resulting in lighter and more compact designs compared to similar products on the market. This makes them perfect for overnight camping trips or outdoor photo shoots. Notably, the EcoFlow 520 Gen4 can power a standard US fridge for approximately four hours during a power outage.

To illustrate the energy capabilities of these impressively small power stations, here’s a quick comparison starting with the River 520 Gen4:

And here’s how the River 260 Gen4 stacks up against some key competitors:

Both models can function as an uninterruptible power supply (UPS) for your computer, with a switchover time of under 10ms. They also feature a cutting-edge 140W USB-C PD3.1 port that supports bidirectional charging. This means you can skip the charging bricks and use a direct DC connection from a 140W USB-C wall charger you may already have, or a portable USB-C solar panel that EcoFlow offers.

EcoFlow has tackled a common issue with power stations that can lead to premature failure if left idle for too long. By reducing the energy lost in converting stored DC to AC output, these units retain more watt-hours for charging devices like drones, bike computers, and phones, or powering your Starlink Mini and compact fridge.

The River 260 Gen4 is set to launch in Europe in Q4 2026, while the River 520 Gen4 will follow in Q1 2027. Pricing details for both models will be revealed as their global release dates approach.