BigBattery’s 48V ETHOS systems are here, and this 10.24kWh configuration offers the ideal off-grid power solution for your tiny home, cabin, or homestead, delivering exceptional safety, reliability, and advanced features.
The ETHOS system is designed as a flexible off-grid power solution with a stackable, modular structure for easy expansion. It includes all the necessary hardware for simple wall mounting and installation. The ETHOS is housed in an IP65-rated enclosure and features an internal fire suppression system, along with an advanced BMS that provides automatic cell balancing for long-lasting safety and reliability. Additionally, its control box includes an interactive LED display and supports CANBus and RS485 communication protocols, allowing you to monitor your power system’s performance and status at all times.
But that’s not all. The ETHOS is paired with a state-of-the-art 6000W split-phase inverter & charger from EG4, which features an LCD touchscreen, 2 MPPT inputs, an integrated UPS module for seamless on and off-grid switching, and the capacity to manage PV arrays up to 8000W. With smart load control, AC coupling, and peak shaving capabilities, you can meet your power needs while protecting your home from grid instability or blackouts. Plus, you’ll enjoy significant savings on your electric bill through peak shaving and time-of-use offsetting.
Whether you need reliable backup power, or you're outfitting your home with an uninterrupted power system for year-round use, the ETHOS ensures consistent, efficient power delivery day after day. It helps you save on utilities and, most importantly, keeps you powered and prepared. Take control of your energy and shop the 48V ETHOS today.
2 × 48V ETHOS 5.12kWh Stackable Battery Module_FETHS-48051-G1
1 × ETHOS Control Box_CNT060
1 × EG4 6kW (8kPV) OFF-GRID INVERTER_INV026
1 × 10kWh Ethos Controller to Battery Power Cable 31.5" inch (800mm)_CBL088
Single Stack Technical Specifications
| System Voltage: |
48V |
| Nominal Voltage: |
51.2V |
| Chemistry: |
LiFePO4 |
| kWh Capacity: |
10.24kWh |
| 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 |
| Cell Configuration: |
16S 2P |
| Max Continuous Discharge Current: |
200A |
| Max Continuous Power: |
10240W |
| 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: |
UL9540A, UL1973, & UN38.3 |
