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.
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.
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.
Approx. 40 lbs (18 kg)
18.3 x 9.3 x 11.1 in (46.4 x 23.5 x 28.3 cm)
32 to 113°F (0 to 45°C)
-4 to 113°F (-20 to 45°C)
800 Cycles to 80%+ capacity
BMS, Over Voltage Protection, Overload Protection, Over Temperature Protection, Short Circuit Protection, Low Temperature Protection, Low Voltage Protection, Overcurrent Protection
Testing and Certification
UL CE FCC ROHS Telec
Extra Battery Port Input
50.4V, 1800W Max (X-Stream and solar dual charging)
Extra Battery Port Output
43V-58.4V 3200W Max
Supported (sold separately)
*Please Note: The above weight, size, etc. have certain measurement errors. Please refer to the actual measurement.
Whether the product can be charged or discharged depends on the actual temperature of the battery pack.