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Key Specifications
Category Details Capacity 4096Wh (expandable to 12kWh per unit with 2x DELTA Pro 3 Extra Batteries; up to 48kWh system-wide with multiple units and accessories) Output Power 4000W AC continuous (8000W surge); up to 6000W with X-Boost (scalable to 12kW system-wide); supports 120V/240V Ports 15 outputs: 5x AC (4x 120V NEMA 5-20R 20A, 1x 120V NEMA TT-30R 30A, 1x 240V NEMA 6-20R 16.7A, 1x 120/240V NEMA L14-30R 16.7A); 2x USB-A (18W max each), 2x USB-C (100W max each), 1x Car Port (12V/30A, 378W max shared with 2x DC5521 and 1x Anderson) Charging Times – AC: 50 minutes to 80% (up to 7000W multi-input) – Solar: ~2.5 hours (2600W max via dual MPPT: 1600W high-PV + 1000W low-PV, 11-150V) – Car/EV: ~3 hours (up to 4000W with adapter) – Hybrid (AC + Solar + Generator): As fast as 1.8 hours Weight 51.5 kg (113.5 lbs) Dimensions 410.4 x 341 x 693 mm (16.2 x 13.4 x 27.3 in) Battery Type EV-grade LiFePO4 (LFP) with 4000+ cycles to 80% capacity (11+ years daily use) Noise Level <30 dB with X-Quiet technology Other IP65-rated (dust/water/impact/fire resistant); UPS <10ms switchover; App control (Wi-Fi/Bluetooth); Operating temp: -10°C to 45°C (-14°F to 113°F) Unique Features
- Versatile Charging: 7 methods (AC, solar, car, EV, generator) with 18 combos for up to 7000W input; auto-recharges via EcoFlow Smart Generator 4000 (Dual Fuel) without manual starts.
- Smart Home Integration: Pairs with Smart Home Panel 2 for automatic circuit control (up to 12 circuits, 20ms switchover) and PowerInsight for energy monitoring; eligible for 30% US tax credit with solar.
- X-Boost & Scalability: Powers 99% of home appliances (e.g., 3-ton AC, 1HP pump); stack up to 3 units for 12kW output.
- Safety & Durability: X-Guard BMS with 40+ protections; 5VA fireproof shell; GFCI outlets; magnetic doors for easy access.
- Portability Enhancements: Rugged wheels, telescoping handle, and compact CTC design despite size; automatic solar power-on.
- Quiet & Efficient: No fuel emissions; pass-through charging maintains full output while recharging.
Comparison: DELTA Pro 3 vs. Original DELTA Pro
Feature DELTA Pro 3 Original DELTA Pro Capacity 4096Wh (up to 48kWh) 3600Wh (up to 25kWh) Output Power 4000W (6000W X-Boost) 3600W (4500W X-Boost) Solar Input 2600W (dual MPPT) 1600W (single) Battery Cycles 4000+ (LFP, IP65) 3500+ (LFP) Charging Speed 50 min to 80% AC 2.7 hours full AC Weight 51.5 kg 45 kg The DELTA Pro 3 excels in expandability, solar efficiency, and home integration, but it’s heavier and pricier—best for serious whole-home users. The original is more budget-friendly for lighter needs.
User Reviews and Recent Buzz
Reviews praise its massive capacity and rapid charging for outages and camping, with 4.8/5 averages on sites like TechRadar and Bob Vila for reliability and ease. Users note the weight as a portability drawback but love the quiet operation and app controls. On X, recent posts highlight sales (e.g., 48% off bundles) and family setups with DELTA series, plus storm prep in the UK. EcoFlow’s promo shows DELTA Pro 3 alongside DELTA 3 models as a “perfect match” for backups.



