EcoFlow DELTA 3 Plus Smart Extra Battery (EFDELTA3P-EB)
The EcoFlow DELTA 3 Plus Smart Extra Battery (EFDELTA3P-EB) is a high-performance expansion module designed to increase the energy capacity of EcoFlow DELTA 3 series portable power stations. With a 1024Wh LiFePO4 battery and advanced smart integration, it delivers long-lasting reliability, fast charging, and seamless scalability. Ideal for home backup, outdoor use, and extended off-grid applications, it enhances system capacity while maintaining efficient and safe power management.
Product Features
Expandable Energy Storage Capacity
Adds 1024Wh of additional energy storage, effectively doubling system capacity when paired with compatible DELTA 3 series power stations.
Long-Life LiFePO4 Battery Technology
Built with lithium iron phosphate cells rated for over 4,000 cycles to 80 percent capacity, delivering up to 10 years of consistent performance.
Seamless Plug-and-Play Integration
Connects directly to compatible power stations using a dedicated expansion port, enabling automatic system recognition and synchronized operation.
Smart App Monitoring and Control
Supports Wi-Fi and Bluetooth connectivity for real-time monitoring of battery levels, temperature, input and output power through the EcoFlow app.
Fast Charging Performance
Supports rapid recharging when connected to the main unit, achieving up to 80 percent charge in under 50 minutes via AC, solar, or hybrid charging methods.
Advanced Battery Protection System
Equipped with multi-layer safety features including over-voltage, overload, temperature, short circuit, and over-current protection.
Broad Compatibility Across DELTA Series
Primarily designed for DELTA 3 and DELTA 3 Plus, with additional compatibility for select DELTA series units including DELTA 2.
Compact and Stackable Design
Engineered with a space-saving form factor that allows secure stacking with the main unit for efficient setup and portability.
Product Specifications
- Model: EFDELTA3P-EB (EF-DL-E10-4)
- Battery capacity: 1024Wh (51.2V, 20Ah)
- Battery chemistry: LiFePO4 (LFP)
- Cycle life: 4,000+ cycles to 80 percent capacity
- Weight: Approximately 9.6 kg (21.2 lbs)
- Dimensions: 398 × 200 × 198 mm
- Expansion port input: 40V–58.4V, up to 24A max
- Expansion port output: 40V–58.4V, up to 48A max
- Charging methods: AC, solar, car charging via main unit
- Charging speed: 0–80 percent in under 50 minutes (system dependent)
- Connectivity: Wi-Fi (2.4GHz) and Bluetooth
- Compatibility: DELTA 3, DELTA 3 Plus, DELTA 3 1500, and DELTA 2
- Operating temperature (optimal): 20°C to 30°C
- Charging temperature: 0°C to 45°C
- Discharging temperature: -10°C to 45°C
- Storage temperature: -10°C to 45°C
- Safety system: Advanced Battery Management System with multi-layer protection
- Expansion connection: XT150 proprietary cable
- Maintenance guideline: Periodic charge cycling recommended every 3 months for long-term storage




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