ECOFLOW
DELTA 3 MAX PLUS EXTRA BATTERY
Overview
Expandable capacity - Increase the capacity of DELTA 3 Max Plus and DELTA 3 Ultra Plus with an extra 2048Wh.
Compact size - The extra battery's overall volume is reduced by approximately 25% compared to the DELTA 2 Max Smart Extra Battery, making it easier to store, carry and stack.
Long lifespan with an LFP battery.
Easy to use - Plug-and-play without setup. Monitor the charge level and temperature via the EcoFlow App.
Up to 5-Year Warranty - Get peace of mind with a 3-year standard warranty and 2 additional years when you register through the EcoFlow App.
Expandable capacity
Increase the capacity of DELTA 3 Max Plus (2048Wh) or DELTA 3 Ultra Plus (3072Wh) with an extra 2048Wh.
Up to 3x the runtime
2-4kWh expandable capacity to fit your energy storage needs. Add up to two DELTA 3 Max Plus (2048Wh) Smart Extra Batteries to gain a capacity of 6144Wh for DELTA 3 Max Plus (2048Wh) and 7168Wh for DELTA 3 Ultra Plus (3072Wh),* giving you extended runtime for home backup, RVing, outdoor adventures, and everyday use.
* Requires the EcoFlow Smart Extra Battery Expansion Adapter to connect two Smart Extra Batteries to the DELTA 3 Max Plus (2048Wh) or DELTA 3 Ultra Plus (3072Wh). The adapter is scheduled for US local release by approximately January 2026.
Compact size
The extra battery’s overall volume is reduced by approximately 25% compared to the DELTA 2 Max Smart Extra Battery.
Automotive-grade Full-Tab LFP Cells: Next-Level Battery Reliability
DELTA 3 Max Plus (2048Wh) Smart Extra Battery is equipped with automotive-grade full-tab LFP cells. The full-tab design reduces resistance, enhances efficiency and safety, and provides higher capacity with less heat, resulting in a long battery lifespan.
Easy to use
There's no setup. Just plug it into your power station for more energy storage. You can monitor the charge level, working status and temperature via the EcoFlow App with ease.
Specs
Net Weight
16kg±0.4kg
Dimensions (HWD)
494*239*196mm
Rated Capacity
2048Wh 51.2V 40Ah
Cell Chemistry
LFP(LiFePO4)
Output Port
43.2~57.6V, 100A
Input Port
43.2~57.6V, 48A
Charge Temperature
0°C-45°C(32°F-113°F)
Discharge Temperature
-10 to 45°C(14°F-113°F)
Storage Temperature
-10 to 45°C(14°F-113°F)
Warranty
5-Year Warranty
**Includes 3-year standard warranty and 2-year extended warranty available upon EcoFlow App registration.