EcoFlow – DELTA 3 Smart Extra Battery (1024Wh LFP Expansion)

Boost your off-grid power storage with the EcoFlow DELTA 3 Smart Extra Battery—an ultra-durable 1024Wh LFP module designed for the DELTA 3 and DELTA 3 Plus.

This compact, stackable expansion battery adds serious capacity for home backup, RV travel, emergency preparedness, and outdoor survival. With over 4000 charge cycles and a 10-year lifespan, it's built for the long haul.

• Expandable Energy Storage: Instantly adds 1024Wh to your DELTA 3 or DELTA 3 Plus—ideal for blackouts, boondocking, or off-grid living.
• Compact & Stackable Design: 1/3 smaller than comparable units; stackable with the main power station to reduce clutter.
• Built to Last: LFP battery chemistry supports 4000 cycles to 80% capacity—lasting up to 10 years of daily use.
• Smart App Control: Use the EcoFlow app to monitor battery status, charge time, and remaining energy from anywhere.
• No Setup Required: Plug-and-play design makes it easy to connect directly to your EcoFlow DELTA 3 Series system.
• Versatile Recharging: Recharge via AC outlet, solar panel, or EcoFlow Smart Generator through the extra battery port.
• Peace of Mind Warranty: Backed by one of the best 5-year warranties in the portable power industry.

Typical Power Runtime:

• Lights: 58 hrs
• Phone: 89 charges
• Fan: 17 hrs
• Fridge: 7–14 hrs
• TV: 8 hrs
• Wi-Fi Router: 58 hrs
• Electric Grill: 0.7 hrs
• Coffee Maker: 0.8 hrs

Specifications:

• Capacity: 1024Wh
• Battery Chemistry: LFP (LiFePO4)
• Cycle Life: 4000+ to 80% capacity
• Weight: 21.1 lbs (9.6 kg)
• Dimensions: 15.7 x 8 x 7.8 in (398 x 200 x 198 mm)
• Input: 40V–58.4V, 24A Max (Extra Battery Port)
• Output: 40V–58.4V, 48A Max (Extra Battery Port)
• Compatible With: EcoFlow DELTA 3, DELTA 3 Plus, DELTA 3 (1500), DELTA 2

What's in the Box:

• EcoFlow DELTA 3 Smart Extra Battery (1024Wh)
• User Manual
• Warranty Card