Description

BigBattery ETHOS | 48V | 10.2KWH| Home Battery Backup LiFePO4

The BigBattery ETHOS 48V 10.2kWh energy storage system pairs two stackable 5.12kWh LiFePO4 battery modules into a single UL-certified tower, delivering 10.24kWh of usable capacity and 200Ah for whole-home backup, off-grid solar storage, or time-of-use load shifting. Built on safe, stable lithium iron phosphate chemistry with an advanced integrated BMS, the ETHOS system provides maintenance-free operation with protection against overcharge, over-discharge, and thermal extremes all housed in an IP65 / NEMA 4X rated enclosure suited to garages, utility rooms, and other demanding installation environments. With 200A of continuous discharge on tap, it comfortably supports essential household circuits and heavy loads alike.

Certified to UL1973, UL9540, UL9540A, and UN38.3, the ETHOS platform meets the safety standards required for permitted, grid-tied residential installations and is CEC listed for California solar projects. CANBus and RS485 communications ensure closed-loop compatibility with popular 48V hybrid and off-grid inverters, and the modular tower design leaves room to grow additional 5.12kWh modules stack cleanly onto the same system whenever your energy needs increase. Backed by BigBattery’s 12-year warranty, the ETHOS 48V 10.2kWh system is a straightforward, code-compliant foundation for lasting home energy independence.

ETHOS 48V Two Battery Module Specs

System Voltage: 48VNominal Voltage: 51.2VChemistry: LiFePO4kWh Capacity: 10.24kWhAh Capacity: 200AhCharging Voltage Range: 55.6V 57VMax Charge Voltage: 58.8VOperating Voltage Range: 48V 57VSuggested Low Voltage Cutoff: 48V 50.8VCell Configuration: 16S 2PMax Continuous Discharge Current: 200AMax Continuous Power: 10240W Max Discharge Peak Current: 300A (Max 5 seconds)Max Charge Current: 200ACharge Temperature Range: 32F 113F (0C 45C)Discharge Temperature Range: -4F 140F (-20C 60C)Optimal Discharge Temperature Range: 59F 95F (15C 35C)Storage Temperature Range (SoC>50%): -4F 113F (-20C 45C) (Max 6 months)Dimensions (DxWxH): 6.7 x 26.5 x 43.3 in (170 x 674 x 1100mm)Weight: 273 lbs (123.8 kg)Max Connections: Up to (16) parallel connections per control boxCommunications: CANBus / RS485Protection Rating: IP65 / NEMA 4XCertifications: UL9540A, UL1973, & UN38.3

ETHOS 48V Two Battery Module Features

10.24kWh Whole-Home Capacity: Two stacked 5.12kWh LiFePO4 modules deliver enough stored energy to carry essential household circuits through overnight outages or maximize self-consumption from your solar array.
200A Continuous Discharge Power: With 10,240W of continuous output, the system comfortably runs refrigerators, well pumps, HVAC blowers, and other heavy household loads simultaneously without breaking a sweat.
UL-Certified Safety Platform: Certified to UL9540A, UL1973, and UN38.3, giving you the documentation needed for permitted, code-compliant residential energy storage installations.
Expandable Modular Tower Design: Additional 5.12kWh ETHOS modules stack directly onto the same system, so your storage capacity can grow with your energy needs instead of requiring a full replacement.

Closed-Loop Inverter Communication: CANBus and RS485 protocols keep the battery and your 48V hybrid or off-grid inverter in constant communication for optimized charging and reliable performance.
Weather-Resistant IP65 / NEMA 4X Enclosure: Sealed against dust and water jets, allowing confident installation in garages, utility rooms, and other demanding environments.
Advanced BMS Protection: Built-in battery management guards against overcharge, over-discharge, and temperature extremes, delivering maintenance-free operation you don’t have to think about.
Space-Saving Vertical Footprint: The full 10.24kWh tower stands just 43.3 inches tall and 6.7 inches deep, tucking neatly against a wall where a traditional battery bank of this capacity wouldn’t fit.