Features

More of DELTA Max

Double runtime with this add-on battery that plugs into any DELTA Max portable power station. Add up to two Extra Battery units for a total capacity of 6048Wh.

Convenient recharging

DELTA Max and its Extra Battery charge and discharge in unison. Whether you’re recharging DELTA Max from solar panels, AC outlets, a vehicle, or our Smart Generator, the DELTA Max Extra Battery will recharge alongside.

Independent in emergencies 

The extra battery even recharges directly from EcoFlow’s Smart Generator without DELTA Max. That’s more recharging options to fit any situation.

LCD screen

Get all the info on battery percent, time until full, time until empty, and more on the DELTA Max Extra Battery LCD screen. Check the battery’s status anywhere on the EcoFlow app.

Specifications:

• Extra Battery Port Input: 50.4V, 1800W Max (X-Stream and solar dual charging)
• Extra Battery Port Output:  43V-58.4V 3200W Max
• Cell Chemistry: NCM
• Shelf Life: 1 year (after a full charge)
• Cycle Life: 800 cycles to 80%+ capacity
• Optimal Operating Temperature: 68°F to 86°F(20°C to 30°C)
• Discharge Temperature: -4°F to 113°F (-20°C to 45°C)
• Charge Temperature: 32°F to 113°F(0°C to 45°C)
• Storage Temperature: -4°F to 113°F (-20°C to 45°C) (optimal: 68°F to
  86°F [20°C to 30°C])
• Protection: Over Voltage Protection, Overload Protection, Over Temperature Protection, Short Circuit Protection, Low Temperature Protection, Low Voltage Protection, Overcurrent Protection
• Warranty: 24 months

 What's in the Box

• 1 x Battery
• DELTA Max Extra Battery Cable
• User Manual & Warranty Card