EcoFlow DELTA 3 Series Smart Extra Battery (Pre-order: Ships end of August) Battery EcoFlow

EcoFlow DELTA 3 Series Smart Extra Battery

Name: EcoFlow DELTA 3 Series Smart Extra Battery
Brand: EcoFlow
SKU: EFDELTA3P-EB
Price: 389.0 USD
Availability: InStock

BY: EcoFlow

SKU: EFDELTA3P-EB

| Availability: In stock

$599.00

$389.00

You Save: $210.00

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EcoFlow DELTA 3 Series Smart Extra Battery

Extend your power capacity with the EcoFlow DELTA 3 Series Smart Extra Battery—perfect for users who need extended backup, off-grid reliability, or longer runtimes during high-demand use. With seamless integration to the DELTA 3 Portable Power Station, it doubles your runtime without sacrificing portability or efficiency.

EcoFlow DELTA 3 Series Smart Extra Battery Features

Seamless Plug-and-Play Integration

Expand your DELTA 3’s capacity in seconds—just plug in and power up.

Massive Expandable Capacity

Add an extra 4096Wh of LiFePO4 storage for double the runtime.

Stackable & Space-Saving Design

Optimized to stack vertically or side-by-side for compact storage and easy handling.

Intelligent Battery Management System (BMS)

Built-in BMS ensures safety, stability, and long-term battery health.

Fast Charging Ready

Charges alongside your DELTA 3 from solar, wall, or car input

EcoFlow DELTA 3 Series Smart Extra Battery Applications

Home Backup Power – Keeps appliances running longer during outages
Off-Grid Living – Extend autonomy for cabins, RVs, or mobile setups
Worksites & DIY Projects – Reliable power where you need it most
Emergency Response – Boosts energy resilience in critical moments

What's Included

Everything you need is included with your product.

1 x EcoFlow DELTA 3 Series Smart Extra Battery
1 x EcoFlow DELTA 3 Extra Battery Cable

1 x Manual
1 x Warranty Card

EcoFlow DELTA 3 Series Smart Extra Battery Specifications

Category	Specifications
Weight	9.6 kg \| 21.2 lb
Dimensions (W×D×H)	397.6 × 202 × 198 mm \| 15.7 × 8.0 × 7.8 in

Output Specifications

Category	Specifications
Extra Battery Port	40V-58.4V⎓48A Max

Input Specifications

Category	Specifications
Extra Battery Port	40V-58.4V⎓24A Max

Battery Information

Category	Specifications
Rated Capacity	1024Wh (51.2V⎓20Ah)
Cell Chemistry	LFP (LiFePO₄)
Cycle Life	80%+ capacity after 4000 cycles
Protection Type	Over Voltage Protection, Overload Protection, Over Temperature Protection, Short Circuit Protection, Low Temperature Protection, Low Voltage Protection, Overcurrent Protection

Temperature Specifications

Category	Specifications
Optimal Operating Temperature	20°C-30°C (68°F-86°F)
Charge Temperature	0°C-45°C (32°F-113°F)
Discharge Temperature	−10°C to 45°C (14°F-113°F)
Storage Temperature	−10°C to 45°C (14°F-113°F)

Frequently-Asked Questions

Can I use this battery without the DELTA 3?

No, this battery is designed exclusively to expand the DELTA 3's capacity and must be connected to function.

Does it charge at the same speed as the DELTA 3?

Yes, when connected, it charges alongside the DELTA 3 with the same power input sources.

Can I use more than one extra battery?

Yes, the DELTA 3 supports up to two Smart Extra Batteries for expanded power storage.

Manual

EcoFlow DELTA 3 Series Smart Extra Battery Manual

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