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Ecoflow River Pro Extra Battery - (EF4 PRO-EB)

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R 7,399 R 7,609
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Extend the lifespan of your EcoFlow RIVER Pro and never be caught in the dark with the EcoFlow RIVER Pro Extra Battery. It features an additional battery that connects to your RIVER Pro to double its efficiency, it is compact and portable, can power up to 1800W devices with X-Boost, and can double your capacity from 720Wh to 1440Wh.

The EcoFlow RIVER Pro Extra Battery doubles the capacity of RIVER Pro from 720Wh to 1440Wh, giving you the freedom to customize your power for any adventure. The RIVER Pro can power devices up to 1800W with X-Boost, which lets you power around 80% of home appliances and DIY tools. Use devices below 1200W for the best product use. The RIVER Pro weighs just 7200g and the RIVER Pro Extra Battery weighs 6985g, making them both portable and easy to transport. The RIVER Pro + Extra Battery can easily fit in a car trunk, on a campsite, or indoors, giving you the power to take your adventure anywhere.


  • Connects Easily to your RIVER Pro
  • Double the capacity from 720Wh to 1440Wh
  • Power Various Appliances
  • Can Power up to 1800W with X-Boost
  • Compact and Portable


  • Capacity: 720Wh (28.8V)
  • Cell Chemistry_ Lithium-ion
  • Cell Type_ 18650
  • Shelf Life_ 1 year (after fully charged)
  • Life Span_ 800 Cycles to 80%+ capacity
  • Colour: Black
  • Expansion Power Port Input_ 33.6V, 660W Max
  • Expansion Power Port Output_ 24.4V – 33.6V, 720W Max
  • Testing and certification_ UL CE FCC RoHS RCM
  • Product Dimensions_ 28.8 x 18 x 21 cm
  • Product Weight_ 7300g


  • EcoFlow RIVER Pro Extra Battery – Black x1
  • Expansion Power Cable x1
  • User Manual x1


We offer free courier delivery for all orders over R1000, orders under R1000 will incur a delivery fee which is calculated at checkout based on your location. Typical delivery rates are as below:

Orders are dispatched with one of our courier partners from our warehouse in Cape Town, within 1 working day of payment being received. We select the best / fastest courier based on your location.

Our Courier Partners

Returns / Refunds:

We aim to offer the very best service to our customers, if for whatever reason you are not happy with your purchase and would like to arrange a return, please contact us on

Smartphone Shop will refund a customer in full for products purchased and returned within 7 business days of the product being received by the customer. Once 7 days has passed, the normal product warranty process applies.

Any product returned within the 7 day period must be unopened, unused and not damaged in any way.

Smartphone Shop offers FREE returns - meaning we cover the cost of collecting the item from you, simply email us with your order number and the reason for your return on and we will facilitate the return.

Only items that have been purchased directly from can be returned to

Refunds / Exchanges

Once your return is received and inspected, we will send you an email to notify you that we have received your returned item and process your refund, credit or exchange.

Refunds are processed within 48 hours and may take up to 3 working days to appear in your bank account depending on your bank. Credits are applied and available to use within 24 hours.


Smartphone Shop supports at least a 1 year warranty on all of our items, we want you to enjoy any purchase you make from us and take pride in offering the best customer experience possible. If you have any problems with any purchase you have made from us, please feel free to contact us anytime. Warranty period or not, we are here to help.

For warranty claim or technical support, please contact us on and we'll get back to you right away.


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