BigBattery ETHOS 46.1kWh + 3x EG4 18kPV Hybrid Inverter (ESS) | Grid-Tied Home Solar System

BigBattery ETHOS 46.1kWh + 3x EG4 18kPV Hybrid Inverter (ESS) | Grid-Tied Home Solar System

Name: BigBattery ETHOS 46.1kWh + 3x EG4 18kPV Hybrid Inverter (ESS) | Grid-Tied Home Solar System
Brand: BigBattery
SKU: K0966
Price: 27089.0 USD
Availability: InStock

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K0966

$27,089.00

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BigBattery ETHOS 46.1kWh + 3x EG4 18kPV Hybrid Inverter (ESS) | Grid-Tied Home Solar System

46.1kWh LiFePO₄ Energy Storage with EG4 18kPV Hybrid Inverters for Large Homes and Backup Systems

Take complete control of your home’s energy with the BigBattery 48V 46.1kWh ETHOS System. Designed for large homes, off-grid estates, and commercial-grade backup, this configuration delivers clean lithium power paired with three EG4 18kPV Hybrid Inverters for smart energy management.

Each of the nine ETHOS 5.12kWh battery modules features Tier 1 LiFePO₄ cells in stackable, IP65-rated enclosures for long life, safety, and outdoor installation. Auto-balancing BMS, fire suppression, and rugged construction ensure dependable power in all conditions.

ETHOS Control Boxes provide smart monitoring with LED displays, status alerts, and RS485/CANBus communication for easy system management and expansion.

The three EG4 18kPV Hybrid Inverters support up to 54kW of PV input across nine MPPTs, UPS functionality, and smart load control. Grid interaction, off-grid capability, net metering, and AC coupling are all supported for maximum efficiency.

Key Features:

Battery Capacity: 46.1kWh (9 × 5.12kWh ETHOS Modules)
System Voltage: 48V
Battery Chemistry: LiFePO₄ (Lithium Iron Phosphate)
Inverter Setup: 3 × 12kW EG4 18kPV Hybrid Inverters (36kW Output | 54kW PV Input)
BMS: Advanced protection with cell balancing, thermal regulation, and fire suppression
Cold Weather Ready: Built-in design for safe year-round performance
Monitoring: LED display on control box + inverter LCD touchscreen interfaces
Enclosure: IP65-rated, outdoor-hardened, vibration-resistant
Expandability: Stackable modules and scalable inverter pairing
Efficiency: Smart load control, peak shaving, and AC coupling built-in

Perfect For:

Large family homes & multi-room properties
Solar-powered estates & homesteads
Grid-tied + off-grid energy solutions
Emergency backup power systems
Net metering & utility offset programs
Lead-acid battery replacements

What’s Included:

9 × 48V ETHOS 5.12kWh Stackable Battery Modules – FETHS-48051-G1
3 × ETHOS Control Boxes – CNT060
3 × EG4 18kPV Hybrid Inverters – INV024
3 × 15kWh ETHOS Controller to Battery Power Cables (4ft) – CBL091
1 × Parallel Busbar – CNT015

Specifications

Parameter	Details
SKU	K0966
GTIN-12 (U.P.C.)	850061252050
System Voltage	48V
Nominal Voltage	51.2V
Chemistry	LiFePO4
kWh Capacity	15.36kWh
Ah Capacity	300Ah
Cell Configuration	16S 3P
Charging Voltage Range	55.6 – 57V
Max Charge Voltage	57V
Operating Voltage Range	48 – 57V
Suggested Low Voltage Cutoff	48 – 50.8V
BMS Cutoff Range	42 – 47V
Max Continuous Discharge Current	250A
Max Continuous Power	12800W
Max Discharge Peak Current	300A (Max 5 seconds)
Max Charge Current	200A
Charge Temperature Range	32°F – 113°F (0°C – 45°C)
Discharge Temperature Range	-4°F – 140°F (-20°C – 60°C)
Optimal Discharge Temperature Range	59°F – 95°F (15°C – 35°C)
Storage Temperature Range (SoC >50%)	-4°F – 113°F (-20°C – 45°C) (Max 6 months)
Weight	387 lb (175.5 kg)
Depth	6.7 in (170 mm)
Width	26.5 in (674 mm)
Height	59.8 in (1520 mm)
Max Connections	Up to (16) parallel connections per control box
Protection Rating	IP65 / NEMA 4X
Communications	CANBus / RS485
Certifications	UL9540, UL9540A, UL1973, & UN38.3

Understanding Your Power Needs

Power Calculation Guide

Sizing Metric	Formula & Example
Energy Consumption (Wh)	Formula: Watts × Hours Example: 60W × 4 hrs = 240 Wh
Battery Capacity (Ah)	Formula: Watt-hours ÷ System Voltage (V) Example: 240 Wh ÷ 12V = 20 Ah
Inverter Size (W)	Formula: Total Watts × 1.25 (safety margin) Example: 300W × 1.25 = 375W → Use 400W inverter
Total Load Power (W)	Formula: Sum of all appliance watts used simultaneously Example: Light (10W) + Fan (75W) = 85W
Runtime (hrs) of Battery	Formula: (Battery Ah × Voltage) ÷ Total Load (W) Example: (100Ah × 12V) ÷ 240W = 5 hrs

Find Your Power Match

Need / Application	System Recommendation
Basic lighting + phone charging	Recommended Battery: 50Ah – 100Ah (12V) Inverter Size: 100W – 200W Notes: For small backup setups
Home office (laptop, fan, TV)	Recommended Battery: 150Ah – 200Ah (12V or 24V) Inverter Size: 500W – 1000W Notes: For moderate usage with 4–6 hours of backup
Home backup (fridge, lights)	Recommended Battery: 200Ah+ (24V or 48V recommended) Inverter Size: 1000W – 1500W Notes: Ideal for longer backups or heavier loads
Business / shop power backup	Recommended Battery: 300Ah+ (48V system) Inverter Size: 2000W – 3000W Notes: Suitable for commercial setups or extended power outages

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Real Human Support, 7 Days a Week: Reach us by phone, email, or live chat — no bots, no overseas call centers, just experts who know off-grid power systems.
Expert Energy Guidance: Our solar and backup energy specialists are here to help with system design, product questions, and installation tips.
USA-Based Service: Local, knowledgeable, and friendly support right here in the U.S.
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Built for Energy Independence: Whether powering a cabin, prepping for emergencies, or going off-grid, our products are chosen for performance, reliability, and sustainability.

BigBattery ETHOS 46.1kWh + 3x EG4 18kPV Hybrid Inverter (ESS) | Grid-Tied Home Solar System

$27,089.00

BigBattery ETHOS 46.1kWh + 3x EG4 18kPV Hybrid Inverter (ESS) | Grid-Tied Home Solar System

BigBattery

K0966

#1 Authorized BigBattery Distributor

Free Shipping + No Sales Tax

Hassle-Free Returns & Exchanges

Talk To A Real Person

BigBattery ETHOS 46.1kWh + 3x EG4 18kPV Hybrid Inverter (ESS) | Grid-Tied Home Solar System

Key Features:

Perfect For:

What’s Included:

BigBattery ETHOS 46.1kWh + 3x EG4 18kPV Hybrid Inverter (ESS) | Grid-Tied Home Solar System

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