ecoflow-comprehensive-guide

EcoFlow Device History & Specifications

This document catalogs the history of EcoFlow power stations (River/Delta).

For Accessories (PowerStream, Alternator Charger, Smart Devices), see Ecosystem & Accessories.

🟢 DELTA Series (Home Backup & High Power)

The DELTA series is designed for high output and capacity, suitable for home backup and heavy-duty use.

DELTA 3 Series (2024/2025) - The New Standard

The 3rd generation introduces X-GaN architectures and ultra-fast charging across the entire line.

• DELTA Pro 3: 4096 Wh

  4000W AC

  120V/240V

  Flagship.

• DELTA 3 Ultra / Ultra Plus: 3072 Wh

  3600W AC

  Scalable to 11kWh.

• DELTA 3 Max / Max Plus: 2048 Wh

  2400W-3000W AC

  Scalable to 10kWh.

• DELTA 3 Plus: 1024 Wh

  1800W AC

  56-min 0-100% charge. 10ms UPS.

• DELTA 3 / Classic: 1024 Wh

  1800W AC

  Entry-level 3rd gen.

DELTA 2 Max (2023)

• Status: Current High-Tier.
• Capacity: 2048 Wh.
• Battery: LiFePO4 (LFP) - 3000+ cycles.
• Output: 2400W AC (4800W Surge).
• Charging: 0-80% in 68 mins (AC + Solar). 2400W AC Max.

• Physical: ~23 kg (50 lbs)

  497 x 242 x 305 mm.

• Launch Price: ~$1,899.
• Compatibility: Works with Delta 2 Max EB, Delta 2 EB, and legacy Delta Max EB.

DELTA 2 (2022)

• Status: Best Seller / Mid-Range. (Replacement for Original DELTA and DELTA Mini).
• Capacity: 1024 Wh.
• Battery: LiFePO4 (LFP) - 3000+ cycles.
• Output: 1800W AC.
• Launch Price: ~$999.
• Notes: The first mainstream shift to LFP for the mid-range.

DELTA Pro (2021)

• Status: Transitioning to Legacy.
• Replacement: DELTA Pro 3.
• Capacity: 3600 Wh.
• Battery: LiFePO4 (LFP).
• Output: 3600W AC (7200W Surge).
• Charging: 2900W Max (Multi-charge: AC/Solar/EV/Generator).

• Weight: ~45kg (99 lbs)

  635 x 285 x 416 mm.

• Ecosystem: Smart Home Panel, EV Charging adapter.

DELTA Max 1600 / 2000 (2021)

• Status: Discontinued.
• Replacement: DELTA 2 Max.
• Capacity: 1612 Wh / 2016 Wh.
• Battery: NCM (Nickel Manganese Cobalt) - ~800 cycles to 80%.
• Notes: Lighter than LFP equivalents but shorter lifespan.

DELTA Mini (2021)

• Status: Discontinued.
• Replacement: DELTA 2.
• Capacity: 882 Wh.
• Battery: NCM.
• Notes: Compact size but lower cycle life than the LFP-based Delta 2.

DELTA (Original / 1300) (2019)

• Status: Discontinued / Retro.
• Replacement: DELTA 2.
• Capacity: 1260 Wh.
• Battery: NCM.
• Pros: Fast charging (X-Stream debut).
• Cons: No app control (early models), NCM battery degradation.

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🔵 RIVER Series (Portable / Camping)

The RIVER series focuses on portability and “grab-and-go” power.

RIVER 3 Series (2024/2025)

• Status: Newest Generation.
• Models:
  • River 3: 245 Wh. Ultra-compact. 300W AC output.
  • River 3 Plus: 286 Wh. Expansion port for Extra Battery.
  • River 3 Max: 572 Wh (River 3 Plus + EB attached).
• Key Upgrade: X-GaN technology. First portable station to use Gallium Nitride for the entire power path, reducing heat by 30% and size by 20% compared to River 2.
• UPS Mode: 10ms (Certified for desktop PCs).
• Battery: LiFePO4 (LFP) - 3000 cycles.

RIVER 2 Series (2022)

• Models:
  • River 2: 256 Wh (Entry). Cheap LFP.
  • River 2 Max: 512 Wh. 60-min recharge. 500W AC output (1000W X-Boost).
  • River 2 Pro: 768 Wh.
• Key Feature: Full switch to LFP battery (10+ year life). fast charging (~1 hour).
• Expansion: Generally NO extra battery ports (unlike River 1). The “Pro” is standalone.

RIVER mini (Standard / Wireless) (2022)

• Status: Discontinued.
• Capacity: 210 Wh.
• Battery: NCM.
• Output: 300W AC (600W Surge).
• Notes: The most compact EcoFlow station. “Wireless” version included a 100W USB-C port and top charging pad; the “Standard” version lacked USB-C.
• Expansion: NONE.

RIVER (Original Series) (2017-2020)

• Status: Discontinued.
• Replacement: RIVER 2 Series.
• Models: River, River Max, River Pro.
• Battery: NCM.
• Unique Feature: The “Max” was just a River + a bolt-on extra battery module.
• Issues: Failure of the connection between main unit and bolt-on battery was common.

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☀️ Solar Microinverters (Grid-Tied)

PowerStream Microinverter (V1) (2023)

• Status: EOL (Replaced by STREAM Micro).
• PV Input: 800W Max (2x 400W MPPT).
• AC Output: 600W / 800W.
• Note: Specifically designed for use with Portable Power Stations via BKW-cable.

STREAM Microinverters (V2) (2024/2025)

• Status: Current Standalone Microinverter.
• PV Input: 1200W (Standard) / 2400W (Pro).
• AC Output: 800W / 1600W.
• Key Advantage: Native MC4 support, upgraded thermal design, OASIS AI.

STREAM Ultra (All-in-One) (2024)

• Status: Flagship Home Solar Unit.
• Capacity: 1.92 kWh (Stackable up to 11.52 kWh).
• Solar Max: 2000W (4 MPPT).
• AC Output: 2300W (Grid-tied bypass).

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🧊 Smart Devices & Appliances

EcoFlow WAVE / WAVE 2

• Type: Portable Air Conditioner (WAVE 2 adds Heating).
• Power: 5100 BTU Cooling / 6100 BTU Heating.
• Battery: Add-on (1159Wh) or direct DC from Delta stations.

EcoFlow GLACIER

• Type: Portable Fridge/Freezer + Ice Maker.
• Specialty: Integrated ice maker (18 cubes / 12 mins).
• Battery: 298Wh plug-in battery.

EcoFlow BLADE

• Type: Robotic Lawnmower with Lawn Sweeping.
• Status: Discontinued.
• Tech: RTK GPS (No perimeter wire).

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⚙️ Smart Generators (Fuel Backup)

Smart Generator (Original Dual Fuel)

• Fuel: Gasoline & LPG (Propane).
• Output: 1800W (Gas) / 1600W (LPG).
• Integration: Direct DC charging for Delta Pro/Max.

Smart Generator 4000 (Dual Fuel)

• Output: 4000W Peak / 3200W Continuous.
• Efficiency: 40% fuel savings when paired with Delta series.

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🚐 Power Kit Components (Modular)

Power Hub

• Role: 5-in-1 energy hub (Inverter/MPPT/DC-DC).
• Inputs: Max 6000W total (Solar + Alternator + Shore).
• Output: 3600W AC.

LFP Batteries (Power Kit)

• 2kWh (efm100-bpb): 51.2V / 40Ah

  LFP.

• 5kWh: 51.2V / 100Ah

  LFP.

• Rule: Cannot mix 2kWh and 5kWh modules in one system.

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🔋 Battery Chemistry Matrix

Series	Model	Chemistry	Cycles to 80%	Lifespan Est.
DELTA	Delta (Original)	NCM	~800	2-3 Years
	Delta Mini	NCM	~800	2-3 Years
	Delta Max	NCM	~800	2-3 Years
	Delta 2	LFP	3000+	10+ Years
	Delta 2 Max	LFP	3000+	10+ Years
	Delta Pro	LFP	3500+	10+ Years
RIVER	River (Original)	NCM	~500-800	2 Years
	River 2 (All)	LFP	3000+	10+ Years
SMART	Wave 2 / Glacier	LFP	3000+	10+ Years
PRO	STREAM / PowerKit	LFP	6000+	15+ Years

Tech Note: LFP (Lithium Iron Phosphate) is heavier but safer and lasts 4-5x longer than NCM. Always buy LFP used if possible.

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