Expandable Capacity
DELTA 2 expands up to 2048Wh with smart extra battery, keeping your home powered on in any emergency.
Convenient Recharging
DELTA 2 and its Extra Battery charge and discharge in unison. Recharging from portable solar panels, AC outlets, or our Smart Generator is easy.
Fast Recharging
Charge up with DELTA 2 from 0-80% in 80 minutes and 0-100% in 130 minutes with AC input.
Internal Storage Compartment
Get extra storage for accessories conveniently, saving space at home or on the go.
Power Multiple Devices
DELTA 2 fits with every port you'll ever need to power any devices anywhere, so you will always feel right.
Control from anywhere
Get all the same info about battery percent, remaining recharge time, hours left, and more on the built-in screen. You can check the battery's status anywhere from the EcoFlow app.
Double your energy storage for less cost
1kWh expandable capacity to fit your energy storage needs, 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 lifespan with an LFP battery
With its upgraded LFP battery chemistry, the DELTA 2 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.
Fast Recharging
Charge up with DELTA 2 from 0-80% in 80 minutes and 0-100% in 130 minutes with AC input.
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 Smart Extra Battery with ease.
Stackable, space-saving design
Featuring an ergonomic, compact design, the DELTA 2 Smart Extra Batteries can be securely stacked on top of power stations and each other to save space and minimize clutter.
Specs
Capacity
1024Wh
Weight
21 lb / 9.5 kg
Size
15.7 × 8.3 × 11.1 in. / 40 × 21.1 × 28.1 cm
Battery Chemistry
LFP
Cycle Life
3000 cycles to 80+% capacity
Applicable Models
DELTA 2
Frequently Asked Questions
Which portable power station is compatible with the DELTA 2 Smart Extra Battery?
DELTA 2 is compatible with the DELTA 2 Smart Extra Battery.
How many extra batteries can I use with a portable power station?
Can I charge the extra battery without connecting to a power station?
What makes the Smart Extra Battery "Smart"?