EcoFlow
EcoFlow WAVE 2 + Add-on Battery Bundle
Here WAVE 2 comes with its Add-on Battery, for cordless cooling and heating in compact spaces. No installation is needed.
$422.10
RIVER 3 Max (RIVER 3 Plus + Extra Battery 300)
$449.10
In stockShips from Baton Rouge, LA30-day warrantyFrom delivery, on eligible productsFree shippingProcessing 1 business day after payment; delivery about 2–7 business days after dispatch
Shipping & delivery30-day returnsWarranty
Check local voltage, plug, installation, and product-certification requirements before ordering. We confirm compatibility and availability for your destination before payment.
Overview
RIVER 3 Max combines a RIVER 3 Plus with an Extra Battery 300 for more runtime. The station provides 600W rated output and 1200W X-Boost, and the system expands up to 858Wh with a wire-free connection.
Planning a system? Read our guide: How to size a battery backup system for your home.
Key benefits
- The added battery gives longer runtime than the RIVER 3 Plus alone.
- One-hour fast charging keeps downtime short.
- Solar charging at up to 220W supports off-grid use.
Key features
- 600W rated output and 1200W X-Boost
- Up to 2x runtime for light-wattage appliances
- Expandable up to 858Wh with a wire-free connection
- 1-hour fast charging
- Up to 220W solar charging
Ideal use
Good for camping, travel, and home essentials where the RIVER 3 Plus alone would be too small.
Key specifications
- Model / SKU
- EFRIVER3Max-US
- Brand
- EcoFlow
- Category
- Batteries
- Rated power
- 600 W
From the manufacturer
600W rated output and 1200W X-Boost - Up to 2× runtime for light-wattage appliances - Expandable up to 858Wh with a wire-free connection - Compact and lightweight - 1-hr fast charging, no battery damage - Up to 220W fast solar charging
Warranty terms mentioned in this description are the manufacturer’s. Our own coverage is the 30-day limited warranty.
Before you order
We confirm compatibility, installation requirements, and delivery details with you during order review, before any payment. Home electrical work may require a qualified installer.
Ask our team how the RIVER 3 Max compares with the RIVER 3 Plus on its own. Message our team on WhatsApp.
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