EcoFlow RIVER Pro Extra Battery

The EcoFlow RIVER Pro Extra Battery is a versatile and portable solution that enhances the capabilities of the RIVER Pro Portable Power Station. By seamlessly integrating this accessory, you can double the total capacity from 720Wh to an impressive 1440Wh. This expanded capacity empowers you to tailor your power supply according to the specific needs of your adventure, ensuring you have ample energy for all your devices and equipment.

What sets the RIVER Pro and its Extra Battery apart is their exceptional portability. The RIVER Pro weighs in at just 15.9 lbs, and the RIVER Pro Extra Battery is even lighter, at 15.4 lbs. These compact and lightweight designs make them incredibly easy to transport, whether you're on the move or setting up at a campsite. The combination of the RIVER Pro and the Extra Battery can conveniently fit in a car trunk, accompany you to a campsite, or be positioned indoors. This flexibility gives you the power to take your adventure anywhere you desire while ensuring that you're never short on reliable, customizable power.


Why buy from Wheels & Chairs?

  • Price - Wheels & Chairs offers the lowest price possible as allowed by our manufacturers. You won't be able to find any of our items for less than what we offer on the market.
  • Service - Our knowledgeable customer service team has the BEST response times in the industry. If you send a message to live chat and don't hear a response in 5 minutes or less, you get a discount.
  • Free Shipping in the US - We ship to anywhere in the US for absolutely free (contiguous states only). It's on us.
  • Return Policy - We match the return policies of our manufacturers for all products giving you the best possible deal (usually free returns within 30 days plus a restocking free. See the full return policy in "Shipping | Warranty | Returns" tab above.


We offer free shipping on all products.

Estimated Shipping Time: 7 Business Days


The EcoFlow service team will take care of all the after-sales issues. If any quality issues are involved, please feel free to contact our service team


Customers can request a full refund within 24 hours after placing an order on

Please note that we will charge a transaction fee if you apply for the refund 24 hours after the order is placed and before delivery has been made (2.6% for credit card users, 3.6% for PayPal users, 3.5% for Affirm users, 3.3% for Klarna users). 

Orders cannot be canceled more than 30 days after they are shipped.


The return service is currently available to US orders only. 

If you are unsatisfied with your purchase, you may return the purchased items complete in their original packing within 30 days of receiving them for an exchange or refund.

If 30 days have passed since your purchase, we cannot offer a refund or exchange.

For quality issues, we will give you a full refund or one-time free replacement within 30 days of receiving the items.

Please collect the package first if your order has been shipped and you want to return it. Then contact our Wheels & Chairs Support via to obtain instructions to return.

Please note that a double shipping fee may be deducted from the original payment if you reject the shipments.

You’ll be charged for shipping and a transaction fee (2.6% for credit card users, 3.6% for PayPal users, 3.5% for Affirm users) in the event of a return on US orders.

Return Process

Contact Wheels & Chairs at to start the return process. Please provide them with proof of purchase, such as an invoice.

You will receive instructions on how to properly pack the products and return them to us. Please make sure all components are included in the package. 


After you have returned the product to our warehouse, we will issue a refund within 14 business days. You will be notified by email when your order is refunded. If you have not received the refund after 14 business days, please contact us via

Return Shipping Cost

Please note that return shipping costs include shipping costs and handling fees.

After-sale Service Contact

Phone: +1 (757) 654-1727 (English service only. International charges apply if calling from outside of the US)

Got questions? Read through our FAQ page listed in our Main Menu to see if it's answered there! If not, please contact us either through the chatbot found on the bottom right of the screen or via this form.

Customer Reviews

Based on 5 reviews
Nash Mckar
Long lasting battery

Great device. I have some servers running at home, and I use it to backup the ups powering the servers. They draw between 170-200 watts. I tested a power outage and I got them working for around 2 hours (and the system displayed I still had other 2 hours left) with the money invested in this device I would never get a 4 hour run with the same amount of money invested in a UPS. The only thing I would kindly ask is a notification through the app if the power from the grid is gone at home.

Ethan Lebanon

It is nice to be able to expand with the extra battery. Charges fast even with the primary unit. It matches the primary battery and looks cool too.

Annuar Styles
Ecoflow so so

Once charged so far working well. Still trying to find adapter for rooftop setup which I already had running with Jackery. I like Ecoflow but believe I should have stayed with the most perfect and easy to use Jackery. Oh, the Ecoflow fast charging feature using wall electric is very fast

Sarah Macman
Extra battery

Great amount of power for the money. Easy to use with an informative screen. Travels easily and charges super fast.

Honey Umpire
Works well in my mini van setup

I needed extra power. I bought a refrigerator that pulls about 35-40 watts on eco mod. With the extra battery I can go 72 hours in my test with the outside temp at 80 degrees and the fridge set at 36 degrees. I need better than that as I have a CPAP and I camp in the southwest. Hopefully I can keep the batteries toped off with the inverter built into my van. My only problem is that as it charges it gets hot and turns off. Still working on that problem.