Product Description
EcoFlow RIVER 3 Plus Smart Extra Battery – EB300
Expand your portable power capacity with the EcoFlow RIVER 3 Plus Smart Extra Battery (EB300) — a high-performance, modular lithium battery designed to seamlessly integrate with the RIVER 3 and RIVER 3 Plus systems. Whether you’re powering tools on site, running essential devices on a remote job, or keeping critical systems online during outages, the EB300 delivers reliable energy with smart safety features and flexible deployment options.
Key Features
Intelligent Expansion Power
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Adds 288 Wh of additional capacity to compatible EcoFlow RIVER 3 and RIVER 3 Plus units
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Scales easily for greater runtime — connect up to two EB300 units in parallel for expanded energy reserves
⚡ Smart Battery Management System (BMS)
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Advanced BMS optimises cell health, ensures balanced charging/discharging, and protects against over-current, over-voltage, overheating, and short circuits
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Real-time monitoring of battery status via EcoFlow app (Bluetooth/Wi-Fi connected)
Seamless Integration & Workflow
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Designed to attach directly to RIVER 3 / RIVER 3 Plus power stations without additional adaptors
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Automatically recognised when connected — no manual configuration required
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Maintains full compatibility with EcoFlow load sharing, pass-through charging, and fast recharge technologies
⚙️ Modular & Portable
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Lightweight and compact for easy transport to worksites, camps, vehicles, or emergency kits
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Stackable design supports orderly storage and deployment
Eco-Friendly Design
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Uses lithium-ion technology for high energy density with reduced environmental impact
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Low self-discharge rate for long-term standby readiness
Typical Use Cases
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Extended runtimes for RIVER 3 / RIVER 3 Plus during field operations or off-grid work
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Emergency backup for power outages at home or business
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Camping & outdoor adventures where extended power is needed for lighting, communication devices, small appliances
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Commercial tools or equipment requiring predictable, portable energy
Technical Specifications
| Specification | Details |
|---|---|
| Model | EB300 Smart Extra Battery |
| Capacity | 288 Wh |
| Chemistry | Lithium-ion |
| Integration | Plug-in expansion for RIVER 3 / RIVER 3 Plus |
| Max Parallel Units | Up to 2 additional batteries |
| Monitoring | EcoFlow App (Bluetooth/Wi-Fi) |
| Dimensions | (specify if required) |
| Weight | (specify if required) |
| Safety | BMS with multi-protection |
Note: For full runtime estimates, device load profiling and solar recharge options, consult the EcoFlow app or technical data sheet.
What’s in the Box
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EB300 Smart Extra Battery
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Quick-start guide
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Safety instructions
