EcoFlow · Batteries
EcoFlow RIVER Pro Extra Battery (720 Wh)
Works with
RIVER Pro
EcoFlow RIVER Pro Extra Battery (720 Wh): compare specifications and model compatibility. View expansion battery details, photos and support information at 326energy.
Use
What it adds
The EcoFlow RIVER Pro Extra Battery doubles the stored energy of the EcoFlow RIVER Pro portable power station from 720 Wh to 1,440 Wh, providing cost-effective capacity for overland fridges, CPAP machines, and off-grid workstations.
It connects to the RIVER Pro's dedicated expansion port via the included expansion power cable and charges or discharges automatically alongside the main unit.
Compatibility
Product details
- Brand
- EcoFlow
- Category
- Batteries
- Compatible with
- RIVER Pro
- Weight
- 15.4 lb / 7 kg
- Dimensions
- 11.4 × 7.1 × 8.3 in (288 × 180 × 210 mm)
- Model
- EFRIVER600PRO-EB
- Capacity
- 720 Wh (28.8V)
- Cell chemistry
- NCM Lithium-ion
- Cycle life
- 800 cycles to 80%+ capacity
- Expansion port input
- 33.6V, 660W Max
- Expansion port output
- 24V–33.6V, 720W Max
- Charge temperature
- 0°C to 45°C (32°F to 113°F)
- Discharge temperature
- -20°C to 45°C (-4°F to 113°F)
In action
Reference setups & real-world use
1,440 Wh Van-Life & Cabin Setup
Linked side-by-side to the EcoFlow RIVER Pro via the RIVER Pro Expansion Power Cable to double total storage from 720 Wh to 1,440 Wh for multi-day off-grid work.
Off-Grid Solar & Cooler Operation
Both 720 Wh modules recharge together from portable solar input while keeping a 12V cooler and drone batteries topped up at camp.
Highlights
Why it's worth it
- Adds 720 Wh of capacity to double the EcoFlow RIVER Pro from 720 Wh to 1,440 Wh
- Matches the RIVER Pro's compact form factor and top carry-handle ergonomics
- Includes the dedicated RIVER Pro Expansion Power Cable for plug-and-play setup
- Recharges simultaneously with the main station from AC wall outlets, solar panels, or 12V car input
- Integrated BMS monitors voltage, current, and cell temperature continuously
In the box
What's included
- EcoFlow RIVER Pro Extra Battery (720 Wh)
- RIVER Pro Expansion Power Cable
- User Manual
Keep browsing
More compatible accessories
EcoFlow RIVER 3 Plus Extra Battery EB300 (286 Wh)
Works with: RIVER 3 Plus
Adds 286 Wh of LiFePO4 capacity to the RIVER 3 Plus (572 Wh total) via cable-free Pogo Pin stacking. Rated for 3,000+ cycles to 80% capacity and includes a 140W bidirectional USB-C port for standalone charging and device power.
EcoFlow RIVER Extra Battery (288 Wh)
Works with: RIVER (original)
Doubles the original EcoFlow RIVER capacity from 288 Wh to 576 Wh. Bolts directly to the underside of the first-generation RIVER chassis with the included hardware for a single-handle, cable-free setup.
EcoFlow RIVER 3 Plus Extra Battery EB600 (572 Wh)
Works with: RIVER 3 Plus
Adds 572 Wh of LiFePO4 capacity to the RIVER 3 Plus, tripling total system storage to 858 Wh. Clips beneath the station via wireless Pogo Pin contacts and features a built-in 140W bidirectional USB-C port for standalone use.