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Christmas cut off: As the cut-off date has passed, Christmas delivery may not be guaranteed. Please select Express shipping for the best chance of delivery before Christmas.

Our team will be on holiday from Dec 22nd to Jan 15th. Please be assured that your order will be dispatched, and any inquiries will be promptly addressed upon our return. We appreciate your understanding and patience during this period.

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EcoFlow River EF4 Extra Backup Battery 600W 288Wh 80,000mAh

EAN: 4897082662785 SKU: EF4-MAXKIT
EcoFlow River EF4 Extra Backup Battery 600W 288Wh 80,000mAhEcoFlow River EF4 Extra Backup Battery 600W 288Wh 80,000mAhEcoFlow River EF4 Extra Backup Battery 600W 288Wh 80,000mAhEcoFlow River EF4 Extra Backup Battery 600W 288Wh 80,000mAh
Receive 5% DISCOUNT on all EcoFlow products when purchased in a bundle. Limited time offer.Use discount coupon ECOFLOW_5 during checkout.
$499
$499$449
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  • Pickup (Same or next biz day)
  • Longer ETA applies to NT, WA, NZ & US locations.
  • The above time frames are estimates only. The actual delivery time is dependent on the shipping location, shipper's processing capacity and other unforeseeable factors i.e. natural disasters, accidents etc. We cannot be held responsible for any courier-related delivery delays.
This product is discontinued
  • Availability:Out of Stock
  • Model: EcoFlow EF4 Battery
  • 118 Reviews
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EcoFlow RIVER Extra Battery

  • Double capacity from 288Wh to 576Wh
  • Integrated with EcoFlow RIVER to increase the energy capacity of the unit
  • EcoFlow RIVER + extra battery = EcoFlow RIVER MAX
  • Cost-effective solution to upgrade your EcoFlow RIVER in terms of storage
  • Recharge from 0% to 80% in 1 hour
  • EcoFlow patented X-Stream Technology
  • Fully charged in 1.6 hours
  • Quiet charging
  • Compatible with 80% home appliances
  • Enables heavy-duty kitchen appliances (up to 1800W) to operate

  • Package Includes:
  • Discharging rates & X-Boost mode can be monitored & controlled through the EcoFlow APP
  • EcoFlow RIVER Extra Battery X 1
  • Long Screws X 4
  • Cross Screw Driver X 1
  • User Manual X 1


product info product info product info

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Need Eco Flow

I like that you get an extra light with the extra battery
James Deane, 2021-05-25 on Amazon



Must-have addition tot he River R600!!!

Didnt see any EF River MAX available within the time frame I needed so I just picked up the R600 and snatched up the extra battery. Took it out on a 3-day / 2-night camping trip and left with about 15% battery left. Used to to charge multiple phones, air up a queen bed and twin...and keep a small fridge running on the 2nd night for about 8 hours.
MNRosete, 2021-05-23 on Amazon



Great

Great
genesal, 2021-05-23 on Amazon



Eco

Awesome addition to my solar generation and it doubled the output.
James Woods, 2021-05-19 on Amazon



Love the extra protection.

By boosting my ECO FLOW battery I have been able to go camping with my CPAP machine.
Kenneth A Thomps, 2021-05-18 on Amazon



Integrates seamlessly

Easy to install, automatic recognition works well.
Keith Carter, 2021-05-17 on Amazon



Great upgrade

Great upgrade. Works as described. Easily installed/attached.
Phil Boudreau, 2021-05-12 on Amazon



Excellent addition

This battery is a much have if you have the Ecoflow 600. It greatly increases the power of the base unit. If you are on the fence about purchasing, read some of the reviews over on YT!
Rob's PhotographyCustom, 2021-05-01 on Amazon



Max out!!!!

Max out your ecoflow river. You will not be sorry considering that it's the best bang for the buck and the charging times are ridiculously fast. there's nothing else out there like it!! good job you guys (ecoflow) !!! Dont be cheap just upgrade your echo Flow River and double the capacity...... it's a no-brainer!!!!!
jabba lone, 2021-04-13 on Amazon



Great battery

Works great!
Douglas Rudzinski, 2021-04-12 on Amazon





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