EcoFlow Smart Extra Battery for EcoFlow RIVER 3 Plus
- 🔋 Expand capacity up to 858Wh with EB600
- ⚡ Choose EB300 (286Wh) or EB600 (572Wh)
- 🔌 Extra USB-C port for charging and recharging
- 🔧 Hassle-free Pogo Pin wireless connection
- 🎒 Use independently as a lightweight power source
- 🔒 10-year lifespan with LFP battery cells
Checkout securley with

- Description
- 🔧 Key Features – EB300
- 🔧 Key Features – EB600
- Delivery
- 🛡️ Fitment Advice
EcoFlow RIVER 3 Plus Smart Extra Battery – EB300 & EB600
Level up your EcoFlow RIVER 3 Plus with the Smart Extra Battery. Available in two variants—EB300 (286Wh) and EB600 (572Wh)—these modular battery packs expand your power capacity wirelessly and provide an extra USB-C port for added charging versatility. Whether you're on the move or need longer runtime at home, these batteries adapt to your energy needs effortlessly.
Two Smart Options to Expand Your Power
Choose EB300 (286Wh) for lightweight travel power or EB600 (572Wh) for serious runtime. Stackable and modular, these batteries give you up to 858Wh of total capacity when paired with the RIVER 3 Plus.
Hassle-Free Wireless Connection
Both EB300 and EB600 use innovative Pogo Pin technology to connect wirelessly—no cables or screws required. Just stack, clip, and go.
Extra USB-C Charging Flexibility
Gain an additional 140W USB-C port to charge and recharge more devices or power your RIVER 3 Plus through the battery. Use it independently too, perfect for light setups.
Lightweight and Independent Use
The EB300 weighs only 3.5kg—lighter than the RIVER 3 Plus—and can be used solo with its own USB-C port. Great for short trips and minimalist power needs.
📊 EB300 vs EB600 Comparison
| Feature | EB300 | EB600 |
|---|---|---|
| Capacity | 286Wh | 572Wh |
| Weight | 3.5kg | 5.8kg |
| Dimensions | 234 x 224 x 110 mm | 234 x 224 x 158 mm |
| Battery Type | LFP (LiFePO4) | LFP (LiFePO4) |
| USB-C Port | 140W input/output | 140W input/output |
| Expandable With | RIVER 3 Plus / Max | RIVER 3 Plus / Max |
- ⚡ 286Wh capacity
- 🔌 Extra USB-C 140W charging/recharging
- 🔋 Wireless Pogo Pin connection – no cables
- 🎒 Lightweight at 3.5kg, ideal for portable use
- 🔋 Use independently with USB-C power out
- 💡 LFP battery with 10-year lifespan
- 🌡️ Operating temp: -10°C to 45°C
- ⚡ 572Wh capacity for extended runtime
- 🔌 Adds USB-C charging and energy input
- 🧩 Pogo Pin wireless connection system
- 🪶 Weighs 5.8kg – stackable and solid
- 🔋 Charge devices or power RIVER 3 Plus
- 📦 Compact: 234 x 224 x 158 mm
- 🔋 LFP cell chemistry with long lifecycle
FREIGHT COSTS CAN BE CALCULATED IN THE CART OR CHECKOUT. IF YOU ARE UNABLE TO OBTAIN A QUOTE VIA THIS METHOD PLEASE CONTACT OUR TEAM VIA ONLINE CHAT FOR A PERSONALISED QUOTE, CLICK THE 'TEXT US' BUBBLE BELOW.
* Oversize, heavy or bulky items are excluded from free freight. Costs will vary depending on delivery location.
| Shipping Category | Description | Example | Estimate Costs |
| Standard | General items | Camping gear, lights, electrical |
$15
|
| Oversize Items - 1 | Large items, low weight | Flares, large roof racks | $45 - $90 |
| Oversize Items - 2 | Medium size, heavy items | Winches, bash plates, lift kits | $50 - $100 |
| Oversize Items - 3 | Long / oversize items | Awnings, long cross bars | $50 - $200 |
| Oversize Items - 4 | Over 25kgs or very large | Large bike racks | $100 - $200 |
| Oversize Items - 5 | Large - delivery to commercial address only | Roller covers & lids | $50 - $100 |
| Wheels | Wheels | Rims, Wheels, Tyres | From. $20 per wheel |
| Towbars | Towbars | Towbars, wiring hitches | From $40 per delivery, depending on product size and destination. |
| Protection | Protection | Bullbars, rear bars, side steps, nudge bars | From $100 per delivery, depending on product size and destination. |
#excludes remote or island locations. Some products are not available for delivery to NT, WA or TAS.
USA & New Zealand Freight Available
Please request a personalised quote from the product page using the CLICK HERE TO GET A PERSONALISED QUOTE button and include your delivery address in the notes section.
Wheels & Tyres
Wheel & tyre freight charges vary depending on the quantity purchased. The online freight calculator at checkout will provide an accurate price, dependent upon the total weight of the goods purchased. Minimum freight is $20 for 1 wheel or tyre. If your postcode does not render a delivered price in the cart/checkout please email or contact our team via online chat for a personalised quote.
