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Ecoflow DELTA 3 Max Plus Extra Battery

Ecoflow DELTA 3 Max Plus Extra Battery

BY: EcoFlow | SKU: EFD3MP-EB Availability: In Stock
$1,399.00
$799.00
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EcoFlow DELTA 3 Max Plus Extra Battery

The EcoFlow DELTA 3 Max Plus Extra Battery is a high-capacity expansion module designed to double your power storage when paired with the DELTA 3 Max Plus series power stations. With a 2048Wh LiFePO₄ battery, it offers dependable, long-lasting energy for home backup, RVs, and off-grid use.

This smart extra battery connects seamlessly to the main DELTA 3 Max Plus unit, using intelligent communication for efficient charging and discharging. Built with multiple layers of protection and durable construction, it’s engineered for performance, safety, and long life in any environment.

EcoFlow DELTA 3 Max Plus Extra Battery Features

Extended Capacity for Longer Runtime - Expand your DELTA 3 Max Plus power station by an additional 2048Wh, doubling total energy storage.

Reliable LiFePO₄ Battery Chemistry - High-quality LFP cells provide over 3,000 charge cycles with excellent thermal stability and safety.

Smart Battery Management System -Equipped with over-voltage, overload, over-temperature, and short-circuit protection to ensure reliable operation.

Seamless Integration - Easily connects to the DELTA 3 Max Plus or other compatible EcoFlow power stations using the included smart extra battery cable.

Durable and Efficient Design -Optimized for consistent output in a variety of environments, with an intelligent cooling system and robust casing for long-term use.

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EcoFlow DELTA 3 Max Plus Extra Battery Applications

  • Home Backup Expansion – Extend your system’s runtime during power outages.
  • RV and Camping Power – Enjoy longer off-grid adventures without recharging as often.
  • Emergency Preparedness – Keep critical devices running longer during extended outages.
  • Outdoor Worksites – Power tools and equipment for longer shifts.
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What's Included

Everything you need is included with your product.

  • 1 x EcoFlow DELTA 3 Max Plus Smart Extra Battery
  • 1 x EcoFlow DELTA 3 Max Plus Smart Extra Battery Cable
  • 1 x Manual
  • 1 x Warranty Card

Warranty

  • 5-Year Limited Warranty

EcoFlow DELTA 3 Max Plus Extra Battery Specifications

General

Category Specifications
Model EFD3MP-EB
Net. Weight Approx. 16 kg (35.3 lb)
Dimensions (W×D×H) Approx. 494 × 239 × 196 mm (19.4 × 9.4× 7.7in.)

Output

Category Specifications
Extra Battery Port 43.2V-57.6V⎓100A Max

Input

Category Specifications
Extra Battery Port 43.2V-57.6V⎓48A Max

Battery Info

Category Specifications
Rated Capacity 2048Wh (51.2V⎓40Ah)
Cell Chemistry LFP (LiFePO₄)
Protection Type Over Voltage Protection, Overload Protection, Over Temperature Protection, Short Circuit Protection, Low Temperature Protection, Low Voltage Protection, Overcurrent Protection

Environment Temperature

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)

Product Compatibility

EcoFlow Power Station
EcoFlow DELTA 3
EcoFlow DELTA 3 Plus
EcoFlow DELTA 3 Ultra Plus
EcoFlow DELTA 3 Max Plus

Note:

  • Compatible exclusively with the EcoFlow DELTA 3 series (DELTA 3, DELTA 3 Plus, DELTA 3 Ultra Plus, and DELTA 3 Max Plus).
  • Do not stack this battery with other series of power stations.
  • If stacking is necessary, ensure both units are positioned with their long sides against a wall to prevent accidental falling.

Frequently-Asked Questions

Can I use the extra battery independently?

No, the DELTA 3 Max Plus Extra Battery is designed to work only when connected to a compatible EcoFlow DELTA 3 power station.

Does it recharge automatically when connected?

Yes. The battery automatically charges and discharges with the main power station for seamless energy management.

Can multiple extra batteries be connected?

Yes. You can connect multiple extra batteries in series to further expand capacity.

Is the battery safe to store indoors?

Yes. The LiFePO₄ battery is safe for indoor use and features built-in protection against overheating and overcharging.