Portable power station
EcoFlow RIVER 3 Plus
- Capacity
- 286 Wh
- Continuous AC
- 600 W
- Solar input
- up to 220 W
Verified relationship · documented for US
Compatibility evidence ↗EcoFlowRIVER 3 Plus Extra Battery 300expansion batteryA matched product photo is not available for this variant.
EcoFlow · Expansion battery
EcoFlow RIVER 3 Plus Extra Battery 300
Current model
EcoFlow RIVER 3 Plus Extra Battery 300: 286 Wh expansion battery. Check the required station and connection cable.
- Capacity
- 286 Wh
- Works with
- RIVER 3 Plus
159 USD
Selected configuration: 300EB
Exact model / SKU
EFEB300 · 41636536942665
Check current USD price and availability at EcoFlow. Merchant checkout confirms the selected configuration.
Seller prices, financing, promotions, shipping and returns are set by the merchant. Manufacturer warranties follow the exact product and purchase terms.
Facts reviewed 2026-09-24
Information still to verify
- A matched manual or download has not yet been verified for this market.
- The complete box contents for the selected configuration have not yet been verified. Confirm included cables and adapters with the seller.
Heeler RV may earn a commission from qualifying purchases through marked seller links. As an Amazon Associate I earn from qualifying purchases.
Full Specs
Specifications apply to the stated market and configuration. Expanded-system figures require the named additional equipment.
- Capacity
- 286 Wh single batteryEcoFlow RIVER 3 Plus Extra Battery 300 US exact specification
Battery
- Battery Chemistry
- LiFePO4, 3000 cycles to 80% capacityEcoFlow source ↗ · reviewed 2026-09-24
- Capacity
- 286WhEcoFlow source ↗ · reviewed 2026-09-24
Outputs
- USB-C Output
- 1 port, 5V/9V/12V/15V⎓3A Max, 20V/28V⎓5A Max, 140W MaxEcoFlow source ↗ · reviewed 2026-09-24
Charging
- USB-C Input
- 5V/9V/12V/15V⎓3A Max, 20V/28V⎓5A Max, 140W MaxEcoFlow source ↗ · reviewed 2026-09-24
Dimensions & operation
- Dimensions
- 9.2 x 8.8 x 4.3 inEcoFlow source ↗ · reviewed 2026-09-24
- Net Weight
- 7.7 lbEcoFlow source ↗ · reviewed 2026-09-24
Warranty & documentation
- Regional manufacturer warranty policy
- 5 years. Original-purchaser coverage starts at delivery, requires proof of purchase from EcoFlow or an authorized seller, and applies to purchase and use in the United States. Buyers outside the contiguous U.S. bear transport costs to and from the contiguous U.S. Normal wear is excluded. Check the linked policy for eligibility and exclusions.Exact regional policy match; Full official HTML; original-purchaser terms, regional service, registration and exact period row reviewed; preserve purchase-date eligibility and exclusions.EcoFlow source ↗ · reviewed 2026-09-24