With its upgraded LFP battery chemistry, the DELTA 2 Max Smart Extra Battery has a lifespan of 3000 complete cycles until it reduces to 80% capacity. You'll get pretty much 10 years of power, even if you use it every day. That's 6× longer than other power stations with a similar capacity and output.
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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23
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Description
EcoFlow Delta 2 Max Smart Extra BatteryExpandable capacity Increase the capacity of DELTA 2 Max with an extra 2048Wh. Triple the power 2 6kWh expandable capacity to fit your energy storage needs. Add up to two DELTA 2 Max Smart Extra Batteries to gain a capacity of 6144Wh, ideal for home backup, RVing, outdoor adventures, and everyday use. Much more affordable, it costs up to 30% less than a power station of the same capacity. 10 Year Long lasting LFP Battery Durable, Safe, Lightweight
Expandable capacity
Increase the capacity of DELTA 2 Max with an extra 2048Wh.
Triple the power
2-6kWh expandable capacity to fit your energy storage needs. Add up to two DELTA 2 Max Smart Extra Batteries to gain a capacity of 6144Wh, ideal for home backup, RVing, outdoor adventures, and everyday use. Much more affordable, it costs up to 30% less than a power station of the same capacity.
10-Year Long-lasting LFP Battery
Durable, Safe, Lightweight
Easy to use
There's no setup. Just plug it into your power station for more energy storage. Using the EcoFlow app, you can charge and monitor the DELTA 2 Max Smart Extra Battery with ease.
Stackable, space-saving design
Featuring an ergonomic, compact design, the DELTA 2 Max Smart Extra Batteries can be securely stacked on top of power stations and each other to save space and minimize clutter.
DELTA 2 Max Smart Extra Battery Specs
Capacity
2048Wh
Input Port
51.2V, 2000W Max
Output Port
51.2V, 3200W Max
Battery
LFP chemistry, 3000 cycles to >80% capacity
Dimension
464 × 235 × 283 mm (18 × 9 × 11 in)
Weight
19kg (42lbs)
What’s in the box
Extra Battery Cable User Manual Warranty Card
Compatible with
DELTA 2 / DELTA Max 2000/ DELTA 2 Max
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 5
APC is the standard
Great. I only use APC
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Reviewed in the United States on March 25, 2017
★★★★★ 5
Excellent build quality, easy to set up
The stand is sturdy and heavy. As far as I can tell, the wood and metal are genuine and high quality. I had no issues with the base (or included controller stand) being unstable or wobbly. Both were rock solid. You can slide the controller stand left or right, but there's no height adjustment for the headphone stand. However most headphones should still fit just fine.
Setup was very easy. There's a few screws to connect the parts but that's it, and there's really no way to put anything in the wrong spot. The controller stand doesn't physically attach to anything, but it does have little rubber feet to keep it from sliding around easily.
Overall a very well-designed and aesthetically pleasing addition to my desk!
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Beautiful looking
If your looking for a great holder that will hold you headphones and gaming control in one organized place as well as one that looks good and is very durable look no further. It came in a nice box and was easy to put together only took a couple of minutes with the included hex key and nuts.
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Reviewed in the United States on April 6, 2026
★★★★★ 5
Great quality. Solid build.
This item is aesthetically pleasing. It has a solid build. It’s great quality tight tolerances on the screw screws, solid wood pieces all around good product for the money does what it’s supposed to do currently holding a pair of beats studio pro headphones as well as a wireless Xbox controller, I would definitely recommend.
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Reviewed in the United States on December 27, 2025
★★★★★ 5
Exactly as I was hoping
I highly recommend this stand. I use taller headphones, so I was worried that this might be too small. But I’m happy to say that they fit great on this stand. The control stand hold great and is stable on its own as well as on the bottom plate. Over all this stand is sturdy and well built, looks great, and feels high quality.
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Reviewed in the United States on April 10, 2026