In the rapidly growing market of compact portable power stations, the Bluetti AC2A vs EcoFlow River 3 emerge as two of the top contenders for users seeking lightweight, efficient, and high-performing energy solutions for outdoor activities, emergency backup, and travel.
These models represent the best of modern battery technology in ultra-portable formats. While both power stations deliver essential functionality in a small footprint, their internal components, performance, and feature sets differ enough to justify a deep technical comparison.
Contents
Differences Bluetti AC2A vs EcoFlow River 3
Below is a summary of the specifications:
Battery Capacity, Chemistry, and Lifespan
The EcoFlow River 3 comes with a 245Wh LFP battery, offering slightly more capacity than the Bluetti AC2A, which is equipped with a 204Wh LFP battery. The extra 41Wh may provide one or two additional phone charges or keep an LED light running longer, giving the River 3 a small edge in raw energy storage.
However, both models use LiFePO4 (LFP) battery chemistry, which is known for its thermal stability, safety, and outstanding lifespan. Each device is rated for over 3,000 charge cycles to 80% capacity, which ensures years of reliable use, even under frequent cycling. This is a massive advantage over older NCM-based competitors, especially for users who require consistent performance over time.
Winner: EcoFlow River 3
With a slightly higher battery capacity and the same long-lasting LFP chemistry, the River 3 delivers more usable energy while maintaining excellent durability.
AC Output Power and Device Compatibility
Both power stations provide a continuous 300W pure sine wave AC output, with a 600W surge rating. This makes them suitable for powering most small devices like laptops, LED lighting, Wi-Fi routers, drones, and CPAP machines. Their outputs are clean and stable, allowing sensitive electronics to run safely.
The Bluetti AC2A and EcoFlow River 3 are both equipped with 100W USB-C output ports, ideal for fast-charging laptops, tablets, and modern smartphones. Each also includes two USB-A ports, although the Bluetti delivers 5V/3A per port, while the River 3 supports 12W max per port, which may offer slightly better efficiency in certain charging scenarios.
For DC-powered gear, both include a regulated 12V/10A car outlet, allowing operation of coolers, air pumps, and other 12V accessories. Neither model supports wireless charging or pass-through AC charging, which is expected in this class.
Winner: Tie
Both models offer identical AC and USB-C output specs, and differences in USB-A performance are marginal. Compatibility is broad and well-suited to mobile users.
Charging Speed and Solar Input Options
The EcoFlow River 3 stands out with extremely fast AC recharging, thanks to its 360W input capability. It can charge from 0–100% in just about 1 hour, making it one of the fastest-charging compact power stations available. This is a critical advantage for users who need quick top-ups during travel or between uses.
In contrast, the Bluetti AC2A charges via AC at up to 270W, reaching full charge in around 1.4 hours. While slower than the River 3, it still offers above-average performance for a power station in this category.
Where the AC2A excels is solar input. It supports up to 200W of solar input via a DC7909 port, enabling faster off-grid recharging than the River 3’s 110W solar input via XT60. For users relying on solar panels during camping, van life, or emergency scenarios, the Bluetti’s higher capacity offers shorter solar charge times under optimal conditions.
Winner: EcoFlow River 3 (for AC charging), Bluetti AC2A (for solar input)
The River 3 dominates wall charging, while the AC2A is the better pick for off-grid solar recharging efficiency.
Portability and Physical Dimensions
Both power stations are designed to be extremely portable, with form factors that allow for easy one-hand carrying, storage in backpacks, or fitting under a car seat. The EcoFlow River 3 weighs just 3.4 kg, slightly lighter than the 3.6 kg Bluetti AC2A.
The difference in dimensions is minimal, with the River 3 being a bit slimmer at 245 × 214 × 142 mm, while the AC2A is 245 × 217 × 164 mm. Both include built-in handles for ease of transport, rugged plastic enclosures, and compact footprints for maximum flexibility.
Winner: Tie
The differences in weight and dimensions are negligible. Both models provide top-tier portability and design efficiency.
Connectivity and Smart Features
The EcoFlow River 3 includes both Wi-Fi and Bluetooth connectivity, allowing users to monitor and control the unit through the EcoFlow mobile app from anywhere with internet access. Users can view battery percentage, charging input/output, adjust AC/DC settings, and update firmware remotely. This makes it highly convenient for users who want complete control on the go.
The Bluetti AC2A only supports Bluetooth connectivity, limiting remote control to within short distances. While still functional for essential monitoring and updates via the Bluetti app, it lacks the long-range flexibility that Wi-Fi access provides.
Winner: EcoFlow River 3
The inclusion of both Wi-Fi and Bluetooth gives the River 3 a connectivity advantage, offering better smart control and remote management capabilities.
Quick Rundown Of Bluetti AC2A
Quick Rundown Of EcoFlow River 3
Conclusion
Choose the Bluetti AC2A if your priority is long-term off-grid reliability and solar charging efficiency. Its 200W solar input, rugged LFP battery, and consistent power output make it ideal for outdoor enthusiasts, long-distance travelers, and users focused on durability and clean energy sourcing.
Choose the EcoFlow River 3 if you need maximum convenience, faster charging, and advanced app features. With higher battery capacity, ultra-fast AC charging, and Wi-Fi app control, it’s a modern, tech-forward option for people who need speed and smart functionality in a compact format.
Overall Winner: EcoFlow River 3
While both units offer outstanding performance in their size class, the River 3 edges ahead with its combination of higher usable capacity, faster charging, and superior connectivity. For users who value speed, smart control, and performance in a compact form, it delivers the best all-around experience.