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Expandable capacity
Increase the capacity of DELTA 2 Max with an extra 2048Wh.
![](png/expandable_capacity_2x_fe8ddd40-a3b0-4bc9-8f11-1153ba57ab591c00.png)
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.
![](png/triple_the_power_2x_0ee788fb-ced5-455e-bbe5-01f841524889d024.png)
10-Year Long-lasting LFP Battery
Durable, Safe, Lightweight
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.
![](png/10-year_long-lasting_lfp_battery_c3f2f4cd-0229-4c9b-839c-215108b3a5226dfc.png)
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.
![](jpg/mask_group_18b9ea71-70a5-4e68-a898-91372348f48bbdfe.jpg)
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.
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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
Frequently Asked Questions
Which portable power station is compatible with the DELTA 2 Max Smart Extra Battery?
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DELTA 2, DELTA Max, and DELTA 2 Max are compatible with the DELTA 2 Max Smart Extra Battery.
How many extra batteries can I use with a portable power station?
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Can I charge the extra battery without connecting to a power station?
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What makes the Smart Extra Battery "Smart"?
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