EcoFlow – RIVER 3 Plus Extra Battery (EB300 or EB600)
EcoFlow – RIVER 3 Plus Extra Battery (EB300 or EB600) - EB300 (286Wh) is backordered and will ship as soon as it is back in stock.
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Description
Description
Expand Your Portable Power—Wherever You Roam
Upgrade your EcoFlow RIVER 3 Plus with a modular Extra Battery to boost capacity and versatility for off-grid adventures, emergency preparedness, or everyday backup. Choose from:
- EB300: 286Wh capacity, weighs only 7.7 lb
- EB600: 572Wh capacity, weighs just 12.8 lb

Both models feature LiFePO4 battery chemistry for long life, fast charging, and reliable output. With an additional 140W USB-C port and wireless Pogo Pin connection, setup is simple and performance is powerful.
Key Features:
- Expandable Power: Increase RIVER 3 Plus capacity up to 858Wh with one stackable battery at a time
- Dual Use: Use independently or paired with RIVER 3 Plus
- USB-C Input/Output: 140W fast charging for devices and recharging options
- Lightweight & Portable: EB300 is ideal for mobile setups at only 7.7 lb
- Tool-Free Connection: Pogo Pin tech means no cables or screws—just stack and clip
- 10-Year Lifespan: Up to 3000 cycles to 80% capacity with 5-year warranty
Specifications:
EB300 (Extra Battery 300)
- Capacity: 286Wh
- Dimensions: 9.2 x 8.8 x 4.3 in
- Weight: 7.7 lb
- Battery Chemistry: LiFePO4, 3000 cycles to 80%
- USB-C Input/Output: 140W Max (5V–28V⎓)
EB600 (Extra Battery 600)
- Capacity: 572Wh
- Dimensions: 9.2 x 8.8 x 6.2 in
- Weight: 12.8 lb
- Battery Chemistry: LiFePO4, 3000 cycles to 80%
- USB-C Input/Output: 140W Max (5V–28V⎓)
Whether you're powering a campsite, prepping for power outages, or expanding your solar kit, the EcoFlow RIVER 3 Plus Extra Battery gives you the freedom to adapt and stay prepared.
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