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Have Questions? Ask an expert. Call (848) 600-6420
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More of DELTA Max

Double runtime with this add-on battery that plugs into any DELTA Max portable power station. Add up to two Extra Battery units for a total capacity of 6048Wh.

Convenient recharging

DELTA Max and its Extra Battery charge and discharge in unison. Whether you’re recharging DELTA Max from solar panels, AC outlets, a vehicle, or our Smart Generator, the DELTA Max Extra Battery will recharge alongside.

Independent in emergencies 

The extra battery even recharges directly from EcoFlow’s Smart Generator without DELTA Max. That’s more recharging options to fit any situation.

LCD screen

Get all the info on battery percent, time until full, time until empty, and more on the DELTA Max Extra Battery LCD screen. Check the battery’s status anywhere on the EcoFlow app.

*Note: This item is only available for sale in the contiguous United States.

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See What Our Customers Are Saying

4.4

/ 5

based on 12 reviews

Direct solar made sure i got what i…

Direct solar made sure i got what i needed in a timely manner, despite manufacturing delays! A+ customer service Direct solar made sure i got what i needed in a timely manner, despite manufacturing delays! A+ customer service Direct solar made sure i got what i needed in a timely manner, despite manufacturing delays! A+ customer service

Brooks Harrison

Excellent Customer Care

Excellent customer care! I had some questions that were addressed immediately and when I placed an order for a couple of batteries, they were delivered in a couple of days! Absolutely a five star transaction! Excellent customer care! I had some questions that were addressed immediately and when I placed an order for a couple... Excellent customer care! I had some questions that were addressed immediately and when I placed an order for a couple of batteries, they were delivered in a couple of days! Absolutely a five star transaction!

Raymond Carpenter

The sale of an EG4 12000XP was easy…

The sale of an EG4 12000XP was easy fast and the lowest cost. With prices rising and services declining in some areas, it was a pleasure to text and chat with a human. No AI!The hardest part will be to install it.Tom The sale of an EG4 12000XP was easy fast and the lowest cost. With prices rising and services declining in... The sale of an EG4 12000XP was easy fast and the lowest cost. With prices rising and services declining in some areas, it was a pleasure to text and chat with a human. No AI!The hardest part will be to install it.Tom

Thomas Hartkop

Great experience, highly recommend

Having never bought from direct power before I was a bit nervous that the heavy snow might cause delays. When I called to check, the person who answered was very reassuring and understood my concern. They explained how the order was coming in two parts and everything was on schedule. It arrived on time and in great shape in spite of the weather. Great service and product. Having never bought from direct power before I was a bit nervous that the heavy snow might cause delays. When... Having never bought from direct power before I was a bit nervous that the heavy snow might cause delays. When I called to check, the person who answered was very reassuring and understood my concern. They explained how the order was coming in two parts and everything was on schedule. It arrived on time and in great shape in spite of the weather. Great service and product.

Terrie

Easy process

Easy to order online and was shipped in a timely manner! Easy to order online and was shipped in a timely manner! Easy to order online and was shipped in a timely manner!

Mad Max

Great friendly support

it was easy to understand him when he was talking,he was very good at getting the item ship,quick service,its to bad you don't make a wooden crate to ship them in because they wouldn't show up with all kinds of damage and have to go back, even though the freight company is responsible for the damage it just sets the customer back further on his project that's the only thing that is bad about your company it was easy to understand him when he was talking,he was very good at getting the item ship,quick service,its to... it was easy to understand him when he was talking,he was very good at getting the item ship,quick service,its to bad you don't make a wooden crate to ship them in because they wouldn't show up with all kinds of damage and have to go back, even though the freight company is responsible for the damage it just sets the customer back further on his project that's the only thing that is bad about your company

Mike Alley

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