*Note: The terms "DELTA" and "RIVER" as mentioned on this page refer to products exclusively manufactured by ECOFLOW INC.
Adjust capacity for growing energy needs
Expand RIVER 3 plus up to 858Wh with 2 extra batteries options: choose either the EB300 (286Wh) or the EB600 (572Wh).
Adds an extra charging and recharging option
Need more power for your adventures? The EcoFlow RIVER 3 Extra Battery doubles your power capacity and adds a high-speed 140W USB-C port—perfect for charging laptops, cameras, or even your RIVER 3 Plus itself!
Expand Your Power – Instantly increases your RIVER 3 Plus capacity for longer off-grid trips.
Ultra-Fast Charging – The 140W USB-C port quickly powers up devices or recharges your power station.
Use It Any Way You Like – Works as an extra battery or a standalone portable charger.
Easy to connect
Utilizing Pogo Pin tech, the batteries connect wirelessly, fastening easily with clips instead of cables or screws.
LiFePO4 Cells with a 10-Year Lifespan
The Extra Battery offers a lifespan of 3000 charging cycles—equivalent to approximately 10 years of daily use before its capacity drops to 80%.
X-Guard Battery Protection Technology
Equipped with an advanced algorithm for cloud-based battery monitoring and over 40 safety measures, the Extra Battery protects against risks related to current, voltage, temperature, and circuits.
Waterproof, fireproof, and drop-resistant
With IP54-rated battery protection, water damage is minimised. Its robust fire-retardant shell withstands tough conditions, and even after a 1-meter fall, the Extra Battery remains undamaged.
Specs
Capacity
286Wh (EB300)
572Wh (EB600)
Dimension
234 x 224 x 110 mm (EB300)
234 x 224 x 158 mm (EB600)
Net Weight
3.5kg (EB300)
5.8kg (EB600)
Battery Chemistry
LFP (LiFePO4)
Optimal Operating Temperature
20°C-30°C
Charge Temperature
0°C-45°C
Discharge Temperature
-10°C-45°C
Storage Temperature
20°C-30°C