Prime Day Sale + EXTRA 10% Off! Code: PD24 EXP: 7/22
Prime Day Sale + EXTRA 10% Off! Code: PD24 EXP: 7/22
Prime Day Sale + EXTRA 10% Off! Code: PD24 EXP: 7/22
Free Shipping Orders over $99. Ends 7/22.
Free Shipping Orders over $99. Ends 7/22.
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9 Reviews
89% (8)
11% (1)
0% (0)
0% (0)
0% (0)
100% Recommend this product (9 of 9 responses)
Seems to work just fine
October 25, 2023
Earth Tech had the best price and the shipping was fast
By Donald
Cabot, AR
Best Price and Fast Delivery
September 16, 2023
This item is one of the many Ecoflow items that I have purchased from this company. I will continued to buy here si ce no one can touch thier prices.
  • Best prices
  • Fast delivery
Best Uses
  • Off grid
  • Electrical independence
  • None identified
By Marianne
Edgewater, FL
Very happy with my purchase
May 23, 2023
Battery arrived in great shape; I had contact before it shipped, and this company was very professional. Super excited to do business with them again glad I found them.
  • Good looking,
  • Durable case
  • Fast shipping
  • Cord to connect to the delta pro max included
  • All in all a pleasant experience
  • I have no cons to list at this point
By Doug
Winter Springs, FL
Easy to connect & charge quickly
April 7, 2023
This unit connected easily and intuitively to my Delta EcoFlow Pro, doubling it's capacity. Once connected, it charged very quickly.
  • Integrated seamlessly with my Delta Pro in the app.
  • Charged quickly
Best Uses
  • These combined units will be used for emergency power during hurricane season in combination with the 400 watt solar panel.
By Phil
West Virginia
Eco flow Delta Pro Extra smart battery
February 26, 2023
Excellent service and great price for a new unit! Highly recommend!
By John
Great Prices, Great Company
December 15, 2022
Ordered 2 EcoFlow Delta Pro Spare Batteries. They were cheaper than anyone else, provided the same incentive that ECO Flow did as well. Items came quickly and in great condition. I will be buying future Solar related items from them in the future.
  • - Quality, Brand New Products
  • - Quick Shipping
  • - Great Prices
Best Uses
  • Home House Backup System
By Kyndl
, Oakley California
I had a Problem
December 14, 2022
I had a problem understanding something. I call Tech support and they Answered my questions. I will never buy from anyone else. This people are AWESOME!!!
  • System works great
Best Uses
  • Camping with this is wonderful
  • None
By Richard
Henderson, KY
Worked as expected
November 12, 2022
As many reviews and comments everywhere have said I wish the connecting cable was longer. Really extended the run time. Used to run camper while I did work around it and charged up batteries on camper.
  • Longer run time. No worry of running out of power
Best Uses
  • For making sure you got the extended run time and can capture more solar power to use
  • That short cable again.
By Brad
Holly Springs, NC
Great addition to the Delta Pro
September 8, 2022
Great extra battery. Extends the using time of my DP. I plan to get another!

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Free Shipping Orders over $99. Ends 7/22.
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