EcoFlow DELTA Pro Expansion Battery

SKU: EF-DP-ULTRA-BP
In Stock

Prolonged winter grid failures threaten homes, making EcoFlow DELTA Pro Expansion Battery essential, adding 3.6kWh of LiFePO4 capacity to double home backup runtime during critical emergency power outages.

  • 3.6kWh capacity doubles station runtime
  • LiFePO4 chemistry provides 6500 cycles
  • Direct connection cable transfers DC power
  • Zero emissions allow indoor bedroom placement
  • LCD monitor displays battery charge status
$2,145.00
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Description

Depleted battery banks halt mobile operations, making the EcoFlow DELTA Pro Expansion Battery essential for doubling runtime capacity across mobile kitchen installations and emergency service vans. Paired with a parent DELTA Pro station, this 3600Wh lithium iron phosphate unit expands energy storage to 7.2kWh. It provides quiet zero-emission electrical storage without fuel logistics or combustion exhaust risks.

A rigid aluminum sub-chassis protects internal cell stacks against transit vibration within fleet service vehicles. The internal chemistry uses automotive-grade lithium iron phosphate rated for 3500 cycles down to 80 percent retention. Unladen dry weight measures 84 lbs across exterior housing dimensions of 25 inches long by 11.2 inches wide by 16.4 inches high. This EcoFlow expansion pack incorporates heavy-gauge copper connection terminals that minimize internal thermal buildup during high continuous amperage throughput.

Key Features of EcoFlow DELTA Pro

Field operations managers buy EcoFlow DELTA Pro commercial power equipment to support silent emergency backup without engine noise or volatile fuel storage. High-amperage expansion ports allow rapid coupling to double available watt-hours for mission-critical loads.

  • 3600Wh storage capacity extends runtime for commercial reach-in chillers and digital POS networks.
  • 3500 life cycles to 80 percent retention deliver years of sustained commercial cycling performance.
  • Heavy-gauge expansion port links this DELTA Pro auxiliary unit straight to the master inverter unit.
  • Integrated battery management system regulates individual cell voltage to eliminate thermal imbalances.
  • Cast-aluminum side handles assist dual-operator lifting when loading into field service trucks.
  • Front-panel LCD screen reports real-time battery percentage, charge status, and remaining runtime hours.
  • Multi-stage thermal cooling fans expel internal heat during rapid recharge and high-discharge cycles.

Bus Voltage Battery Management Tolerances

Interfacing through a high-current DC expansion bus, this DELTA Pro auxiliary unit feeds supplemental energy without introducing waveform distortion or frequency fluctuation. The parent unit pure sine wave inverter maintains harmonic distortion beneath 1.5 percent total harmonic distortion, protecting delicate programmable oven controls. Sound levels remain under 50 dB(A) at 23 feet during active cooling cycles. Internal solid-state electronics monitor cell temperature across 40 sensors, preventing localized hot spots under continuous 30A draw.

Modular Placement Power Station Interconnection

Place this unit on a firm level surface maintaining at least 6 inches of clearance around air intake vents. Connect the unit straight to the primary power station using the proprietary heavy-gauge expansion cable, securing locking collars at both ends. Grounding architecture integrates with the host station floating neutral system for safe coupling to transfer switch subpanels.

Storage Handling Operational Environment Limits

Integrated side grab handles permit two-person repositioning, while rubber base feet isolate internal cells from worksite floor vibrations. This expansion battery is NOT engineered for unshielded outdoor exposure in active rain, sub-zero cold charging without cell preheating, or direct connection to raw alternating current outlets.

  • Inspect external ventilation intake slots for airborne dust every 50 runtime hours.
  • Conduct a full discharge and recharge cycle to 100 percent every 12 months.
  • Check the high-current cable connector pins for debris every 100 runtime hours.

Factory Commercial Warranty Pack Inventory

This EcoFlow expansion pack includes a 3-Year commercial warranty covering internal cells and battery management circuitry. The factory packaging carton holds the expansion battery unit, heavy-gauge connection cable, rubber terminal covers, and official factory testing sheets.

EcoFlow DELTA Pro Ultra Smart Extra Battery Specs

BrandEcoFlow
Product CategoryNext-Gen High-Voltage Residential Expansion Battery Module (Ultra Series)
Model Code / IdentificationEFYJ751-BP (Delta Pro Ultra Ecosystem Battery Pack)
Battery Capacity6,144 Watt-hours (6.1kWh per stackable block)
Nominal System Voltage102.4V High-Voltage Architecture (Engineered for lower transmission loss)
Battery Chemistry TypePremium Grade Lithium Iron Phosphate (LFP)
Battery Lifecycle Profile3,500+ Full Cycles down to 80% SOH (State of Health) | Equivalent to 10+ Years usage
Expansion ScalabilityInterlock Stackable Design (Supports up to 5 battery blocks per inverter to achieve 30kWh; scalable up to 90kWh with a multi-inverter home grid hub)
Ingress Protection (IP Rating)IP54 Dust and Splash Resistant (Suitable for semi-sheltered garage or utility placements)
Thermal ManagementProprietary Advanced Internal Liquid-Acoustic Cooling Array with Auto-Heating Elements for cold weather operation
Operating Temperature Range-20°C to 45°C (-4°F to 113°F) Charging & Discharging thresholds
BMS Safeguard ArrayAdvanced Overvoltage, Short Circuit, Under-Voltage, Overcurrent, and Thermal Runway Protection Control Matrix
Net Weight50.7 kg (111.8 lbs)
Dimensions L x W x H660 mm x 455 mm x 204 mm (26 x 18 x 8 inches)
Ideal ApplicationIndustrial-grade or commercial scale whole-home energy arbitrage, stackable emergency infrastructure for multi-day blackouts, pairing with high-voltage solar panel configurations, and absolute electricity utility grid independence.

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