EcoFlow RIVER 3 Max Plus – 858Wh Portable Power Station with Extra Battery

Get more power, longer runtime and greater flexibility with the EcoFlow RIVER 3 Max Plus, combining the RIVER 3 Plus with a 572Wh Smart Extra Battery for a total 858Wh capacity. It is an excellent solution for home backup, work, camping, travel, RVs and everyday power needs.

⚡ Powerful 600W Output with 1200W X-Boost

The RIVER 3 Plus delivers 600W rated AC output, while X-Boost supports compatible appliances up to 1200W. It can power devices such as TVs, laptops, CPAP machines, gaming consoles, blenders and other compatible household appliances.

🔋 858Wh Expandable Capacity

The included 572Wh Extra Battery expands the RIVER 3 Plus from 286Wh to 858Wh, giving you significantly longer runtime. The battery connects using EcoFlow’s convenient Pogo Pin technology, requiring no conventional cables or screws.

🔌 Power Up to 8 Devices

Enjoy a versatile selection of outputs, including 3 AC outlets, 2 USB-A ports, 1 × 100W USB-C port, 1 car outlet and an additional 140W USB-C port on the Extra Battery.

🛡️ Long-Lasting & Safe

Built with LiFePO₄ battery chemistry, the system is rated for 3,000 cycles to 80% capacity and is designed for up to 10 years of everyday use. X-Guard protection, IP54-rated battery protection, fire-resistant materials and drop-resistant construction add further peace of mind.

⚡ Fast, Quiet & Convenient

Recharge the RIVER 3 Plus from 0–100% in about 1 hour using AC power, with additional solar, car and generator charging options. It also provides <10ms UPS switching and operates at under 30dB, making it suitable for sensitive electronics and quiet environments.

Key Specs: 858Wh Capacity | 600W Output | 1200W X-Boost | LiFePO₄ | 3,000+ Cycles | 140W Extra USB-C | <10ms UPS | <30dB | 10-Year Battery Lifespan

Power longer. Charge smarter. Stay prepared with the EcoFlow RIVER 3 Max Plus.