BigBattery Ethos 30.7kWh Stackable Battery (6 Module) - FREE SHIPPING
£4,132.00
Sale price
£4,132.00
Regular price
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BigBattery Ethos 30.7kWh Stackable Battery (6 Module) - FREE SHIPPING
£4,132.00
Sale price
£4,132.00
Regular price
Shipping calculated at checkout.
ETHOS-30.7
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Description
The Ethos 30.7 kWh Stackable Battery System is a premium, high-capacity energy storage solution engineered for large residential and commercial power applications. Built from six 5.12 kWh modules, this configuration provides over 30 kWh of usable energy — ideal for full-home backup, large solar systems, and microgrids requiring extended autonomy and scalability.
Key Features
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Massive 30.7 kWh Capacity: Six 5.12 kWh modules combined for exceptional energy storage.
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Advanced LiFePO₄ Technology: Delivers superior safety, reliability, and long cycle life.
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Smart Power Management: Integrated BMS with CANBus / RS485 communication ensures intelligent control.
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Pre-Engineered Stack System: Factory-tested with control box and pre-terminated cables for simple setup.
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Industrial-Grade Protection: IP65-rated aluminum housing suitable for indoor or semi-outdoor use.
Product Overview
The Ethos 30.7 kWh Stackable Battery System combines six Ethos 51.2 V / 100 Ah LiFePO₄ modules in parallel, offering a robust and scalable solution for demanding energy needs. Its modular design provides exceptional flexibility — you can start small and expand later as your system grows.
Each Ethos module includes its own smart Battery Management System (BMS) to ensure real-time monitoring, cell balancing, and protection against over-voltage, over-current, and temperature extremes. When stacked, the included Ethos Control Box manages communication between modules and your inverter, providing a clean plug-and-play installation experience.
With over 95 % round-trip efficiency and a cycle life of up to 8,000 cycles at 80 % depth of discharge, the Ethos 30.7 kWh delivers exceptional long-term performance. Its IP65 enclosure ensures protection from dust and moisture, allowing for flexible mounting in protected outdoor or indoor environments.
Designed for energy independence, this high-capacity stack supports residential microgrids, off-grid cabins, small businesses, and large solar arrays. The Ethos line is also certified to major international safety standards, ensuring reliability and compliance.
Technical Specifications
| Specification | Details |
|---|---|
| Configuration | 6 × Ethos 5.12 kWh Modules |
| Nominal Voltage | 51.2 V |
| System Voltage | 48 V nominal |
| Total Capacity | 30.72 kWh (600 Ah) |
| Cell Configuration | 16S × 6P |
| Charging Voltage Range | 55.6 – 57 V |
| Maximum Charge Voltage | 57 V |
| Operating Voltage Range | 48 – 57 V |
| Suggested Low Voltage Cutoff | 48 – 50.8 V |
| Maximum Continuous Discharge Current | 250 A |
| Peak Discharge Current | 300 A (≤ 5 s) |
| Maximum Charge Current | 200 A |
| Round-Trip Efficiency | ≥ 95 % |
| Chemistry | Lithium Iron Phosphate (LiFePO₄) |
| Cycle Life | 4,000 – 8,000 cycles @ 80 % DoD |
| Communication | CANBus / RS485 |
| Enclosure Rating | IP65 |
| Charge Temperature Range | 0 °C – 45 °C (32 °F – 113 °F) |
| Discharge Temperature Range | –20 °C – 60 °C (–4 °F – 140 °F) |
| Storage Temperature (SOC > 50 %) | –20 °C – 45 °C (–4 °F – 113 °F) |
| Dimensions (Approx.) | 170 × 674 × 2280 mm (6.7 × 26.5 × 89.8 in) |
| Weight (Approx.) | ≈ 270 kg (595 lbs) |
| Certifications | UL9540A, UL1973, UN38.3 |
| Design Life / Warranty | 10 + years / 10-year warranty |
Included in Kit
ETHOS 30.7 kWh (6 Module)
Included in Kit:
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(6) FETHS-48051-G1 – 5.12 kWh Ethos Battery Modules
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(1) CNT060 – Ethos Control Box
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(1) CNT081 – Ethos Base (Base Only)
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(2) CBL089 – Ethos Stack-to-Stack Power Cable Pair 4.9 ft (1500 mm)
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(1) CBL090 – Ethos Stack-to-Stack Comm Cable 4.9 ft (1500 mm)
Applications
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Whole-home backup and energy independence
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Large off-grid residential or commercial systems
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Renewable integration and load shifting
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Hybrid solar and battery storage projects
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Microgrid and community power systems
Return policy
Our goal is for every customer to be totally satisfied with their purchase. If this isn't the case, let us know and we'll do our best to work with you to make it right.
Shipping
We will work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with further information. Delivery times vary depending on your location.
Manufacturing
Our products are manufactured both locally and globally. We carefully select our manufacturing partners to ensure our products are high quality and a fair value.