Bigbattery ETHOS 30.7kWh + 2x EG4 18kPV Hybrid Inverter (ESS) | Grid-Tied Home Solar System

Bigbattery ETHOS 30.7kWh + 2x EG4 18kPV Hybrid Inverter (ESS) | Grid-Tied Home Solar System

Name: Bigbattery ETHOS 30.7kWh + 2x EG4 18kPV Hybrid Inverter (ESS) | Grid-Tied Home Solar System
Brand: BigBattery
SKU: K0959
Price: 18071.0 USD
Availability: InStock

BRAND:

BigBattery

| SKU:

K0959

$18,071.00

Free shipping with delivery between Mar 31 - Apr 07

Quantity

#1 Authorized BigBattery Distributor

All products come with manufactured warranties

Free Shipping + No Sales Tax

More money in your pockets for your renewable

Hassle-Free Returns & Exchanges

Safe shopping for your hard-earned money

Talk To A Real Person

Get help from our specialists —

live chat or call anytime

Bigbattery ETHOS 30.7kWh + 2x EG4 18kPV Hybrid Inverter (ESS) | Grid-Tied Home Solar System

Power your entire home with confidence using the BigBattery 48V ETHOS System, delivering 30.7kWh of premium LiFePO₄ storage paired with two EG4 18kPV Hybrid Inverters for unbeatable performance, scalability, and savings. Perfect for whole-home energy storage, grid-tied homes, cabins, off-grid estates, and large residential installations.

The ETHOS system is designed with Tier 1 LFP cells, a stackable modular architecture, and a weather-resistant IP65-rated enclosure for long-lasting, outdoor-safe operation. It ensures reliable, safe, and efficient energy day in and day out.

Each module includes an integrated BMS with auto cell balancing, thermal protection, and built-in fire suppression. ETHOS Control Boxes feature interactive LED displays for real-time system monitoring, plus RS485/CANBus communication for constant system connectivity.

The kit includes two EG4 18kPV Hybrid Inverters, each capable of handling up to 18kW of PV input (36kW combined), with three MPPTs, AC coupling, integrated UPS modules, touchscreen displays, smart load control, and peak shaving. Supports seamless on/off-grid switching, parallel operation, net metering, and solar incentive programs.

Key Features:

Battery Capacity: 30.7kWh (6 × 5.12kWh ETHOS Modules)
System Voltage: 48V
Battery Chemistry: LiFePO₄ (Lithium Iron Phosphate)
Inverter: 2 × 12kW EG4 Hybrid Inverters (36kW PV Input, 6 MPPTs Combined)
BMS: Advanced protection with cell balancing, fire suppression, thermal regulation
Cold Weather Ready: IP65-rated outdoor casing with long-term durability
Monitoring: Real-time LED display on Control Boxes + LCD touchscreens on each inverter
Expandability: Stackable up to 80kWh per system; inverter scalable for higher loads
Grid-Tied Ready: Supports AC coupling, net metering, and peak shaving

Perfect For:

Whole-Home Solar Backup
Cabins, Tiny Homes, and Family Homes
Off-Grid Homesteads
Large Residential & Estate Power Systems
Emergency Backup Power
Grid-Tied Utility Savings & Net Metering
Lead Acid Replacement

What’s Included:

6 × 48V ETHOS 5.12kWh Stackable Battery Modules – FETHS-48051-G1
2 × ETHOS Control Boxes – CNT060
2 × EG4 18kPV Hybrid Inverters – INV024
2 × 15kWh ETHOS Controller to Battery Power Cables (4ft) – CBL091
1 × Parallel Busbar – CNT015

Specifications

Parameter	Details
SKU	K0959
GTIN-12 (U.P.C.)	850061252142
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

Why Shop With Us

Authorized & Trusted Dealer: We’re fully authorized for every brand we carry, so you get genuine products backed by full manufacturer warranties.
Fast, Reliable Shipping: Shipped from U.S. warehouses with quick, dependable freight options — keeping your project on track.
30-Day Hassle-Free Returns: Changed your mind? Enjoy a simple 30-day return process for peace of mind.
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.
Secure Payments: Shop confidently with encrypted, secure checkout protecting your personal and payment information.
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 30.7kWh + 2x EG4 18kPV Hybrid Inverter (ESS) | Grid-Tied Home Solar System

$18,071.00

Bigbattery ETHOS 30.7kWh + 2x EG4 18kPV Hybrid Inverter (ESS) | Grid-Tied Home Solar System

BigBattery

K0959

#1 Authorized BigBattery Distributor

Free Shipping + No Sales Tax

Hassle-Free Returns & Exchanges

Talk To A Real Person

Bigbattery ETHOS 30.7kWh + 2x EG4 18kPV Hybrid Inverter (ESS) | Grid-Tied Home Solar System

Key Features:

Perfect For:

What’s Included:

Bigbattery ETHOS 30.7kWh + 2x EG4 18kPV Hybrid Inverter (ESS) | Grid-Tied Home Solar System

Get In Touch:

Company Information:

Help Center:

Get In Touch:

Company Information:

Help Center

© Eco Grid Supply. All Rights Reserved

© Eco Grid Supply. All Rights Reserved

Added to your cart: