- Chinese company founded in 2017 in Shenzhen, best known for its RIVER and DELTA portable power stations
- Widely considered one of the largest portable power station brands globally; independent market research consistently groups it with Jackery, Anker, Bluetti and Goal Zero as one of the handful of brands that dominate the category
- Has expanded from portable power into a home energy ecosystem: PowerOcean (whole-home battery backup) and PowerStream (plug-in balcony solar with a microinverter)
- Uses LFP (lithium iron phosphate) cells across its current range, with warranties and cycle counts that vary significantly by product line
Independent coverage
This page reflects our own independent assessment of EcoFlow, not a sponsored placement. If we later add affiliate links to EcoFlow's site, any commission we might earn does not change what we say about the brand here.
Who is EcoFlow
EcoFlow is a Shenzhen-based energy technology company founded in 2017. Four former DJI employees, two American and two Chinese, set it up to build cleaner, quieter alternatives to petrol generators. The brand launched its first product, the RIVER portable power station, through a crowdfunding campaign. It then followed that with the larger DELTA line in 2019. Both ranges grew quickly through further crowdfunding launches and retail partnerships. EcoFlow expanded into Europe, North America and Australia from 2021 onwards.
Independent market research on the portable power station category consistently groups EcoFlow with Jackery, Anker, Bluetti and Goal Zero. These are named as the small set of brands that dominate global sales. The same research also names EcoFlow specifically as a leader in LFP battery adoption. As a result, EcoFlow is widely considered one of the largest portable power station brands globally.
A narrower claim exists too, however. In 2025, EcoFlow itself announced that it was the single largest brand by unit or revenue share. It based that claim on a Frost & Sullivan recognition. We could not verify the claim against any independently published report, so we do not repeat it here. More recently, the company has pushed into home energy storage proper with PowerOcean and PowerStream. These product lines compete more directly with the plug-in and whole-home battery brands covered elsewhere on this site.
The EcoFlow product range
EcoFlow’s catalogue splits into two distinct uses. It is worth being clear about which one you are looking at. The RIVER and DELTA series are portable power stations: self-contained battery boxes with built-in inverters. They are designed to be carried and charged from a wall socket or solar panels. Typical uses include camping, power outages and job sites. RIVER models sit at the smaller, lighter end of the range, from around 245 Wh up to a few kWh. DELTA models, by contrast, scale up to whole-home backup territory.
The DELTA Pro 3, for example, is a 4096 Wh unit. EcoFlow rates it at up to 4000 W continuous output, or up to 6000 W with its X-Boost feature. You can also stack it with extra battery packs and a hub. That reaches a stated 8 to 12 kW of output across multiple units.
Alongside these sits EcoFlow’s newer home energy ecosystem. PowerOcean is a fixed, hybrid-inverter home battery system. Its UK-available single-phase battery packs come in around 5.1, 10.2 or 15.3 kWh nominal capacity. EcoFlow states around 95% of that as usable at a conservative depth of discharge. You can expand the system up to a stated 45 kWh by linking multiple inverters. PowerStream, by contrast, is a small plug-in microinverter aimed at balcony and apartment solar. It feeds power from solar panels and an optional EcoFlow battery directly into a normal socket. EcoFlow rates its UK-market unit at up to 800 W. Unlike PowerOcean or a whole-house system, it needs no rewiring.
245 Wh+
starting capacity across EcoFlow's RIVER portable power stations
Up to 15.3 kWh
nominal capacity per PowerOcean single-phase battery pack
Up to 800 W
rated output of EcoFlow's PowerStream UK microinverter
Key technology behind EcoFlow
EcoFlow’s current generation across both portable and home products uses LFP (lithium iron phosphate) cells. This is the same broadly safer, more thermally stable chemistry used by most established home battery brands today. On the portable side, EcoFlow rates the DELTA Pro 3 at 4000 cycles to 80% capacity. It also backs the unit with a 5-year warranty. EcoFlow’s own specification sheet confirms these figures, and independent retailer listings match them. The unit also includes app-based monitoring, fast solar and mains charging. It also offers a sub-10ms UPS switchover when used as backup power.
PowerOcean’s single-phase datasheet states over 6,000 charge cycles and a 15-year warranty on its battery packs. That is a notably long warranty by home battery standards. However, we have not seen this independently tested over that timeframe by a third party. PowerStream’s microinverter connects to solar panels and, optionally, an EcoFlow portable power station. EcoFlow’s app manages how much of that generation goes into the home against how much is exported. The output cap is configurable in the app.
Rules vary by country. In the UK, for example, a plug-in system at this scale typically falls under the G98 “fit-and-inform” process. This means you notify your network operator within 28 days of connecting, rather than needing prior approval. That said, you should confirm your own installation’s requirements with your electricity network operator before connecting anything to the mains.
Strengths and limitations
As with any brand, EcoFlow’s own marketing understandably leads with its strengths. Here is a more balanced picture.
Strengths
- One of the longest track records and widest retail presence of any portable power station brand, with a large installed base and years of real-world use behind it
- Covers an unusually wide range of needs under one brand, from a small camping battery through to whole-home backup and fixed home energy storage
- LFP chemistry across the current range, generally a safer and more stable choice than older lithium chemistries
- PowerStream offers a genuinely low-commitment entry point into solar for renters and flat owners who cannot fit a full home battery system
Worth checking before you buy
- Portable power stations and the PowerOcean or PowerStream home range are built for different jobs with different specs, so a model name alone tells you little; always check the exact SKU and datasheet
- DELTA Pro 3's 5-year warranty is far shorter than the 15-year warranty on EcoFlow's PowerOcean home battery packs, a reminder that portable and fixed home storage are held to different standards even within one brand
- PowerOcean and PowerStream are newer to the home-battery market than EcoFlow's portable range, so there is less long-term installer and ownership experience to draw on in most markets
- We have not independently tested EcoFlow's pricing, support or installation process ourselves
Where EcoFlow fits the market
EcoFlow’s position in the market depends on which product you mean. Its portable power stations compete in a crowded field against brands like Jackery, Anker and Bluetti. They compete mostly on backup and outdoor use rather than everyday home energy management. Its newer PowerStream microinverter, however, sits in the same plug-in, balcony-solar segment as Anker’s Solix balcony range. It also sits alongside the socket-connected battery brands covered elsewhere on this site, such as Indevolt and Growatt’s Noah line. These products are aimed at renters and flat owners without access to a full installation.
PowerOcean, meanwhile, moves EcoFlow into the fixed, professionally installed whole-home battery space. Here, its closest comparison is Anker Solix’s home battery systems rather than the plug-in brands. If you are still working out which capacity and format suit your home, our capacity guide and free calculator can help. Both cover that ground independently of any one brand.
Common questions about EcoFlow
What does EcoFlow make?
EcoFlow makes two distinct types of product. The first is portable power stations (the RIVER and DELTA series) for camping, outages and backup. The second is a newer home energy range. This includes PowerOcean (a fixed whole-home battery and hybrid inverter) and PowerStream (a plug-in microinverter for balcony or small-space solar).
Is EcoFlow the biggest portable power station brand?
EcoFlow is widely considered one of the largest portable power station brands globally. Independent market research consistently groups it with Jackery, Anker, Bluetti and Goal Zero. These are named among the small number of brands that dominate the category. The same research also names it specifically as a leader in LFP battery adoption. However, EcoFlow itself made a narrower claim in 2025: that it was the single largest brand by unit sales or revenue. It based that claim on a Frost & Sullivan recognition. We could not verify that specific ranking against any independently published report, so we do not repeat it here.
Can I use EcoFlow's PowerStream without an electrician?
PowerStream is designed as a plug-in system that does not require rewiring your consumer unit. That is part of its appeal for renters and flat owners. Rules vary by country. In the UK, this type of connection typically falls under the G98 fit-and-inform process. This means you can connect it yourself and notify your network operator afterwards. Always check your local wiring regulations and your own competence before carrying out any electrical work. Also confirm requirements with your network operator first.
Is EcoFlow PowerOcean the same as its portable power stations?
No. PowerOcean is a fixed home battery and hybrid inverter system installed by a professional. Its single-phase battery packs range from roughly 5.1 to 15.3 kWh nominal capacity. You can expand the system further by linking multiple inverters. It is a different product category from EcoFlow's portable DELTA and RIVER power stations, even though both use similar LFP battery technology.
How long do EcoFlow batteries last?
This varies by product line. EcoFlow's PowerOcean datasheet states over 6,000 charge cycles with a 15-year warranty on the battery packs. That is a long warranty by home battery standards. EcoFlow rates its flagship portable unit, the DELTA Pro 3, at 4000 cycles to 80% capacity with a 5-year warranty. These figures are typical of portable power stations rather than fixed home batteries. Always check the specific model's current datasheet. Cycle life and warranty length both vary across EcoFlow's wider RIVER and DELTA range.
Which markets is EcoFlow available in?
EcoFlow sells its portable power stations, PowerOcean and PowerStream in numerous markets worldwide. This includes its own UK store and a number of UK solar and renewable energy retailers. EcoFlow is newer to the fixed home battery space specifically, as with any brand entering that category. In most markets, it is worth weighing EcoFlow's shorter track record there against its longer history in portable power.
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