EcoFlow - River 3 Plus Smart Extra Battery 300EB (286 Wh Capacity) - Black
Price range: $208.99
Brand: EcoFlow
The EcoFlow is a product. It features a display.
PQS: 63 (computed 2026-03-19 07:15:26.715787+00:00)
GTIN-14: 00842783151407
Key specs
Only non-null specs are shown
Offers
| Retailer | SKU | Price | Stock | Offer | Last seen |
|---|---|---|---|---|---|
| Best Buy | 6645715 | 208.99 USD | In stock | View offer → | 2026-03-19 04:55:07.209934+00:00 |
Recent price history (50)
| Retailer | Price | Stock | Seen at |
|---|---|---|---|
| bestbuy | 208.99 USD | In stock | 2026-03-19 04:55:07.209934+00:00 |
| bestbuy | 208.99 USD | In stock | 2026-03-17 05:03:48.509797+00:00 |
| bestbuy | 208.99 USD | In stock | 2026-03-16 05:02:26.117905+00:00 |
| bestbuy | 208.99 USD | In stock | 2026-03-15 04:52:24.795596+00:00 |
| bestbuy | 208.99 USD | In stock | 2026-03-14 04:56:15.501929+00:00 |
| bestbuy | 208.99 USD | In stock | 2026-03-13 05:04:58.052648+00:00 |
| bestbuy | 208.99 USD | In stock | 2026-03-12 04:53:38.992326+00:00 |
| bestbuy | 208.99 USD | In stock | 2026-03-11 04:52:12.996035+00:00 |
| bestbuy | 208.99 USD | In stock | 2026-03-10 05:01:19.609820+00:00 |
| bestbuy | 208.99 USD | In stock | 2026-03-09 05:01:33.211464+00:00 |
| bestbuy | 208.99 USD | In stock | 2026-03-06 07:17:52.929453+00:00 |
| bestbuy | 208.99 USD | In stock | 2026-03-03 03:07:44.581527+00:00 |
| bestbuy | 208.99 USD | In stock | 2026-03-02 10:13:05.815554+00:00 |
Full specs
Show full spec table
| Reconciled at | 2026-03-06 10:20:22.157613+00:00 |
|---|
Canonical JSON (expand)
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Debug data (expand)
| Raw title | EcoFlow - River 3 Plus Smart Extra Battery 300EB (286 Wh Capacity) - Black |
|---|---|
| Raw brand | EcoFlow |
| Raw category | Best Buy > Cell Phones > Cell Phone Accessories > Cell Phone Chargers & Cables > Portable Chargers & Power Banks |
Canonical highlights (non-null)
| core.title | EcoFlow - River 3 Plus Smart Extra Battery 300EB (286 Wh Capacity) - Black |
|---|---|
| core.seo_title | EcoFlow EFEB300 |
| brand | EcoFlow |
| model | EFEB300 |
| gtin14 | 00842783151407 |
| images[0] | https://pisces.bbystatic.com/prescaled/500/500/image2/BestBuy_US/images/products/7cd588cb-8cd6-4c27-bce6-22313f8574be.jpg |
| physical.width_in | 8.8 |
| physical.height_in | 4.3 |
| physical.weight_kg | 3.49 |
| physical.dimensions_in | 4.3 x 8.8 x ? in |
| warranty.labor | 5 Years |
| warranty.parts | 5 Years |
| schema_version | 1 |
BestBuy raw specs (pretty)
Expand BestBuy raw JSON
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"name": "EcoFlow - River 3 Plus Smart Extra Battery 300EB (286 Wh Capacity) - Black",
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"details": [
{
"name": "Brand",
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"values": [
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{
"name": "Model Number",
"value": "EFEB300",
"values": [
"EFEB300"
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},
{
"name": "Product Name",
"value": "River 3 Plus Smart Extra Battery 300EB",
"values": [
"River 3 Plus Smart Extra Battery 300EB"
]
},
{
"name": "Color",
"value": "Black",
"values": [
"Black"
]
},
{
"name": "Capacity",
"value": "286 watt hours",
"values": [
"286 watt hours"
]
},
{
"name": "Maximum Battery Life",
"value": "1500 hours",
"values": [
"1500 hours"
]
},
{
"name": "Battery Chemistry",
"value": "Lithium-ion",
"values": [
"Lithium-ion"
]
},
{
"name": "Maximum Runtime At Full Load",
"value": "0.5 hours",
"values": [
"0.5 hours"
]
},
{
"name": "Voltage Rating",
"value": "120 volts",
"values": [
"120 volts"
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{
"name": "Power Supply Input",
"value": "1 x USB-C",
"values": [
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"value": "140 watts",
"values": [
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"value": "1 x USB-C",
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"name": "Number Of Devices Charged Simultaneously",
"value": "1",
"values": [
"1"
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{
"name": "Rated Wattage Continuous",
"value": "600 watts",
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"value": "1200 watts",
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"value": "9.2 inches",
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"value": "7.7 pounds",
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"value": "No",
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"value": "5 years",
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"value": "5 Years",
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"features": [
{
"feature": "Expandable up to 858Wh\nLevel up your RIVER 3 Plus with an Extra Battery. Choose the EB300 (286Wh) and simply stack it at a time to achieve up to 572Wh of pure energy."
},
{
"feature": "Adds an extra charging and recharging option\nLooking to charge more devices or conveniently power your RIVER 3 Plus via USB-C? Adding this extra battery expands its capacity and significantly enhances its versatility with an extra 140W USB-C port, offering the RIVER 3 Plus a new charging and recharging option. With the USB-C port, the Extra Battery also provides the freedom to use it independently."
},
{
"feature": "Hassle-free connection\nUtilizing Pogo Pin tech, the batteries connect wirelessly, fastening easily with clips instead of cables or screws."
},
{
"feature": "Lightweight at only 7.7 lb\nWeighing just 7.7 lb, the EB300 is lighter than the RIVER 3 Plus. It is lightweight, with a compact design and USB-C input and output port, making the extra battery highly convenient for on-the-go use. The Extra Battery offers the perfect solution for short outdoor trips with minimal devices to expand your possibilities."
},
{
"feature": "10-year lifespan with an LFP battery\nThe Extra Battery features the same LPF battery technology and offers a 5-year warranty, just like the RIVER 3 Plus. This ensures worry-free usage for up to 10 years, giving you peace of mind and long-lasting performance."
}
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"manufacturer": "EcoFlow",
"regularPrice": 208.99,
"shippingCost": 0.0,
"longDescription": "Extend your power capacity with the EcoFlow RIVER 3 Plus Smart Extra Battery. Designed for seamless integration with the RIVER 3 Plus, this modular battery boosts your total energy storage, making it ideal for outdoor adventures, emergency backup, or off-grid use. Lightweight, compact, and easy to attach — stay powered for longer, wherever you go.",
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Newegg raw specs
No Newegg raw specs saved for this product yet.