Advice

EcoFlow Batteries : Which One to Choose? Buying Guide and Comparison

When traveling on a road trip in a van, camper van or motorhome , having a reliable source of energy is essential to recharge your devices, power your equipment and fully enjoy your adventure in complete autonomy.

Whether you're a fan of vanlife or a wild camping enthusiast, choosing the ideal battery (power bank, solar panel, etc.) can be complex given the diversity of options available.

That's why we've carefully analyzed the characteristics of EcoFlow batteries , to guide you toward the energy solution best suited to your needs, so you're never caught off guard in the great outdoors.

EcoFlow has expanded its range over the past year: here is our buying guide and comparison of EcoFlow portable batteries in 2025.

Introducing the EcoFlow brand

EcoFlow , founded in 2017 by a team of passionate engineers, is a leading company in the field of portable energy solutions and nomadic batteries.

The brand is redefining access to electricity with an innovative range of powerful and easy-to-use portable power stations , suitable for a variety of needs, whether at home, outdoors , camping , vanlife or in the event of a power outage.

The Ecoflow brand now offers a complete range from small portable batteries to hybrid storage systems for the home . Among its flagship products, the EcoFlow River battery series stands out for its portability and performance , thus meeting the expectations of the general public.

EcoFlow portable batteries are known to be suitable for both domestic and mobile use due to their many strong characteristics appreciated by their users:

• They are powerful because they are long-life LiFePO₄ batteries (up to 3000 cycles).
• They are light compared to their performance and allow you to carry them everywhere with you.
• They allow you to charge several of your accessories simultaneously.
• They are compatible with solar panels and have many accessories: rigid or portable panels, alternator charger, etc.
• They recharge extremely quickly (often from 0 to 100% in less than 1.5 hours) so you won't be left without power for too long during your nomadic travels.

• They are connected to a smartphone application for monitoring consumption and charging status.
  

The EcoFlow River and EcoFlow Delta models are distinguished primarily by their capacity , power output and portability .

• The River series is designed for users looking for a lightweight and compact solution, ideal for outdoor activities, camping or as a backup power source at home.

These stations offer up to 800W of AC output power, with a fast charge function that allows you to go from 0 to 80% in one hour. They also support solar charging up to 220W, making them suitable for mobile situations.

• The Delta series is focused on higher energy needs.

These stations are capable of delivering up to 2400W of AC output power, with an X-Boost function allowing for a boost of up to 3000W to power more power-hungry devices. They also offer fast charging capability, reaching 80% in approximately one hour thanks to a 2400W AC input combined with solar charging. The Delta series is therefore more suitable for users requiring power for household appliances, power tools, or for extended home use.

• The EcoFlow River 3 is a compact 245 Wh, 300 W (600 W X-Boost) portable station, ideal for charging phones, tablets or laptops. Its LiFePO₄ battery lasts a long time and charges in one hour with a fast UPS function (<20 ms).

• The EcoFlow River 3 Plus offers 286 Wh and 600 W (1200 W X-Boost) , with the possibility of expansion up to 858 Wh. Its one-hour fast charge and ultra-fast UPS (<10 ms) make it suitable for small household appliances and prolonged outdoor use.

• The EcoFlow River 3 Max combines the River 3 Plus with an additional battery, totaling 572 Wh . It maintains the same power output and fast charging, ideal for more power-hungry devices or extended battery life.

How to charge your EcoFlow battery?

EcoFlow portable batteries can be recharged in four different ways :

1. Mains (AC) - wall outlet : fast charge (often 100% < 1h30).
2. Solar panels : multiple MPPT inputs, portable or rigid panels, power up to 1000 W depending on model.
3. Cigarette lighter / alternator : you can recharge while driving, with the option of an 800 W charger on Delta 2 Max.
4. External generator: for high-end models.

Thanks to EcoFlow technology, you can check the charging of your EcoFlow battery with the mobile app .

What can I power with these batteries?

EcoFlow portable batteries provide convenient on-the-go power for everything from smartphones to appliances.

• The River 3 is ideal for charging your smartphones, tablets, and laptops, offering several days of battery life depending on usage. It can also power a drone or a 12V cooler under moderate use, perfect for camping and outdoor activities.

• The River 2 Slider model allows you to power low-power devices like a compact refrigerator, small household appliances or lightweight tools, while remaining portable and easy to carry for your outdoor activities.

• Delta 2 batteries are designed for more intensive use. They can run a refrigerator, microwave, or Wi-Fi router for over 90 hours, and even a washing machine for a short cycle, ideal for long-term camping or power outages at home.

• The Delta 2 Max offers superior power, allowing it to power a refrigerator for 14 hours, a microwave for 1.5 hours, a washing machine for 3 hours, and power tools, suitable for temporary domestic needs or construction sites.

• The Delta 3 and Delta 3 Plus allow you to manage multiple large devices simultaneously, offering autonomy and power close to a typical home installation. These models are ideal for near-home use, charging power-hungry devices and complete off-grid power management, making these EcoFlow portable batteries ideal solutions for home, camping and all your nomadic adventures.

How to choose your EcoFlow battery? 7 criteria to take into account!

Before choosing your EcoFlow battery, it is important to ask yourself the right questions and think about your needs and your use.

Here are the important criteria to consider and the key features that can guide you in purchasing your portable battery:

1. Intended use and frequency of use: Travel, outdoors, home, camping. Daily use, occasional use, or emergency use only.

2. The battery capacity (Wh) will tell you the total available autonomy . This will allow you to determine how long you can power your devices. Look at the basic capacity and whether it is expandable (additional modules, external batteries). It is recommended to calculate - the total power of your devices in watts (W) and their daily consumption in watt-hours (Wh), adding a safety margin.

3. Output power (W) and boost mode : this data will allow you to know if your device is compatible, in particular for connecting power-hungry devices at startup

4. Recharge time: The shorter the charging time, the less time you'll have to wait. This means you'll be more mobile because you won't have to wait for the charge to finish. Ecoflow batteries offer 100% or 80% charging in less than 1 hour for some models. The freedom is yours!

5. The expandability of your battery: Some batteries can accommodate additional batteries to increase their power. This allows you to adapt if you need to increase your power needs in the future.

6. Your battery's lifespan and number of cycles: EcoFlow models often advertise LiFePO₄, ~3000 cycles or more to maintain ~80% capacity, IP protections, etc.

7. Weight and dimensions: On a road trip, these criteria are very important because every space counts. River models are compact.

With EcoFlow portable batteries, stay independent everywhere: River for portability, River Plus/Max for more power, Delta for near-home use. Choose according to your needs in capacity, power and autonomy , and enjoy your travels or your home without ever running out of power.

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