EcoFlow RIVER 3 Plus Smart Extra Battery | EB300 286Wh Expansion Module

More Runtime. Zero Hassle.

The EcoFlow EB300 Smart Extra Battery is the simplest way to extend your RIVER 3 Plus. With 286Wh of additional LiFePO₄ capacity, it doubles your runtime in seconds — no cables, no tools, just a clean pogo-pin connection that clicks into place and starts working immediately. At just 3.5kg, it's light enough to toss in a bag alongside your RIVER 3 Plus without a second thought.

Why You'll Love It

• 286Wh LiFePO₄ Capacity — Doubles the runtime of your RIVER 3 Plus
• Pogo-Pin Cable-Free Connection — No cables or tools required, just connect and go
• Just 3.5kg — Lightweight and easy to carry alongside your RIVER 3 Plus
• Stackable & Expandable — Pair with another module for even more capacity
• 3,000+ Charge Cycles — Up to 10 years of reliable daily use
• LiFePO₄ Chemistry — Safe, stable, and long-lasting battery technology

Compatible With

• EcoFlow RIVER 3 Plus

You're heading out for a weekend camping trip and you're not sure if the RIVER 3 Plus alone will cut it. Snap on the EB300, and suddenly you've got twice the runtime — enough to keep devices charged, run a fan overnight, and still have power left for the drive home. Small addition, big difference.

Specifications

• Capacity: 286Wh
• Battery Type: LiFePO₄
• Weight: 3.5kg (7.7lb)
• Cycle Life: 3,000+ cycles to 80% capacity
• Lifespan: ~10 years of daily use
• Connection: Pogo-pin (cable-free)