The 48V ETHOS | 15.3kWh (3 Module) from BigBattery is a compact, modular energy storage solution designed to power your off-grid setup, solar system, or emergency backup needs. With a fully stackable design, it’s easy to expand and customize as your energy demands grow.

Whether you’re powering a cabin, tiny home, or upgrading your home’s solar storage, the ETHOS delivers efficient, safe, and year-round energy performance.

Smart Design, Built for Safety

Each system includes a control box with an LED display for easy monitoring. You can track real-time performance using CANBus and RS485 communication protocols, ensuring you stay informed about your system’s health.

Safety comes first with an IP65-rated enclosure that protects against dust and moisture, along with an internal fire suppression system. The advanced Battery Management System (BMS) ensures long-lasting performance through auto cell-balancing.

Key Features:

Big Battery | 3x 48V ETHOS (15.36kWh) Home Battery Backup

• 15.3kWh Battery Capacity (3 Modules)

• Modular & Stackable Design – Easily expandable for future energy needs

• Advanced BMS – Auto-cell balancing for maximum efficiency and battery life

• IP65-Rated Casing – Weather-resistant and built for long-term use

• Built-in Safety – Fire suppression system included

• Real-Time Monitoring – LED display with CANBus and RS485 protocols

• Ideal for Solar & Backup Power – Supports cabins, homes, and off-grid setups

Compact Power, Ready to Grow

The 48V ETHOS | 15.3kWh (3 Module) is part of BigBattery’s expandable ESS line. Available in both 2-stack (10.24kWh) and 3-stack (15.3kWh) setups, it grows with your lifestyle and energy needs.

3 × 48V ETHOS 5.12kWh Stackable Battery Module
1 × ETHOS Control Box
1 × 10kWh Ethos Controller to Battery Power Cable 31.5″ inch (800mm)