BigBattery ETHOS 48V – 5.1kWh Home Battery Backup LFP Kits
BigBattery ETHOS 48V – 5.1kWh Home Battery Backup LFP Kits
SKU: K0949
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- Price: $2,990.00
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- List Price: $4,490.00
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- Price: $2,990.00
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PRODUCT DESCRIPTION
Description
Configurable up to 80+ kWh.
The BigBattery ETHOS is a modular 48V lithium battery system engineered for reliable, long-lasting energy storage in UL-certified configurations. Each battery integrates seamlessly with the ETHOS controller for safe operation, intelligent management, and scalable capacity as your needs grow. Backed by a 12-Year Warranty, ETHOS delivers a high-performance, maintenance-free platform for dependable energy independence.





Specifications
| Battery Specification | Details |
|---|---|
| GTIN-12 (UPC) | 850061252005 |
| System Voltage | 48V |
| Nominal Voltage | 51.2V |
| Chemistry | LiFePO4 |
| kWh Capacity | 10.24 kWh (2x), 15.36 kWh (3x), 20.48 kWh (4x), 30.72 kWh (6x), 40.96 kWh (8x), 46.08 kWh (9x) |
| Ah Capacity | 200Ah |
| 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 |
| Cell Configuration | 16S |
| Max Continuous Discharge Current | 200A |
| Max Continuous Power | 10,240W |
| 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 | 273 lb (123.8 kg) |
| Depth | 6.7 in (170 mm) |
| Width | 26.5 in (674 mm) |
| Height | 43.3 in (1100 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 |
What's in the Box?
Each shipment comes with 'X' number of Modules (2,3,4,6) & accessories
ETHOS 10.2KWH (2 Module) INCLUDED IN KIT: (2) FETHS-48051-G1 - 5.12kWh ETHOS Battery Module & Included Accessories INCLUDED IN EACH BATTERY BOX: (1) ETHOS Battery Module Red & Black Parallel Cable 0.7 FT (220mm) (1) ETHOS Battery Module Comm Cable 0.7 FT (220mm) (2) L Wall Mounting Brackets + Fasteners - ETHOS Control Box & Included Accessories (1) CBL088 - ETHOS Battery Final Module to Control Box Power Cable Pair (2 Stack) 31.5" (800mm)
ETHOS 15.4KWH (3 Module) INCLUDED IN KIT: (3) FETHS-48051-G1 - 5.12kWh ETHOS Battery Module INCLUDED IN EACH BATTERY BOX: (1) ETHOS Battery Module Red & Black Parallel Cable 0.7 FT (220mm) (1) ETHOS Battery Module Comm Cable 0.7 FT (220mm) (2) L Wall Mounting Brackets + Fasteners (1) CNT060 - ETHOS Control Box & Included Accessories INCLUDED IN CONTROL BOX BOX: (1) ETHOS Stack Base (2) ETHOS Control Box to Inverter Power Cable Pair 4.9 FT (1500mm) (1) ETHOS Control Box to Inverter Comm Cable 4.9 FT (1500mm) (1) CBL091 - ETHOS Battery Final Module to Control Box Power Cable Pair (3 Stack) 4 ft (1220mm)
ETHOS 20.2KWH (4 Module) INCLUDED IN KIT: (4) FETHS-48051-G1 - 5.12kWh ETHOS Battery Module (1) CNT060 - ETHOS Control Box (1) CNT081 - ETHOS Base (Base Only) (2) CBL089 - ETHOS Stack-to-Stack Power Cable Pair 4.9 ft (1500mm) (1) CBL090 - ETHOS Stack-to-Stack Comm Cable 4.9 ft (1500mm)
ETHOS 30.7KWH (6 Module) INCLUDED IN KIT: (6) FETHS-48051-G1 - 5.12kWh ETHOS Battery Module (1) CNT060 - ETHOS Control Box (1) CNT081 - ETHOS Base (Base Only) (2) CBL089 - ETHOS Stack-to-Stack Power Cable Pair 4.9 ft (1500mm) (1) CBL090 - ETHOS Stack-to-Stack Comm Cable 4.9 ft (1500mm)
