Big Battery 48V 3X HUSKY 2 KIT – EG4 6K OFF-GRID INVERTER - K0706
SECOND GENERATION POWER STORAGE IS HERE! This 48V 15.36kWh LiFePO4 HUSKY 2 Kit is the latest and greatest from BigBattery, providing a robust solution, with unmatched reliability and efficiency, for any off-grid power system, emergency backup, or mobile power setup in your RV or camper van.
The HUSKY 2 is our most energy-dense 48V solution to date, designed to provide ultimate peace of mind during operation, whether that’s in your home during a blackout, or while out boondocking in the countryside! From its Tier 1 LFP cells to its generous operating parameters and wide temperature range, this battery redefines versatility and durability when it comes to lithium power storage, and boasts comprehensive BMS protections against Over/Under Voltage and Over Current statuses, as well as a thermal management system that affords a generous operating temperature range. But that’s not all!
The HUSKY 2 comes with state-of-the-art features to enhance the safety and visibility of your power. Not only is it housed in an IP65-rated, vibration-resistant casing, and equipped with an advanced BMS capable of auto-balancing cells, but it also boasts a self-heating function which supports cold weather charging, ensuring you have reliable power through every season. Plus, the HUSKY 2 features full CANBus & RS485 communication protocols, and we pair these HUSKY 2s with a cutting-edge 6000W EG4 split-phase inverter, equipped with its own in-depth LCD display, so you can always stay up to date on the status and performance of your power. This multifunctional inverter and charger boasts advanced parallelability up to 96kW, built-in circuit breakers, smart load control, variable working modes, and an integrated UPS module, along with the ability to handle PV arrays of up to 8000W, making this unit the perfect companion for your HUSKY 2s.
Equipped with the 48V HUSKY 2, you’ll be saving space and weight no matter the application, and you can rest easy knowing you’re powered and prepared day in and day out. Shop the all-new 48V HUSKY 2 & HUSKY 2 Kits today!
Included
- 3 × 48V HUSKY 2 - LiFePO4 - 100Ah - 5.12kWh
- 1 × EG4 6kW (8kPV) OFF-GRID INVERTER
- 2 × Parallel Comm Cable
- 2 × 4AWG (Black and Red) 21 inches Ring to Ring Terminal Cable
What our Experts Think
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All‑round off‑grid powerhouse — Combines a 12 kW inverter with a 20.4 kWh LiFePO₄ battery bank, giving enough capacity and output to run most household loads or a small off‑grid home reliably.
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Large energy storage with strong output — 20.4 kWh capacity provides extended runtime, while the 12 kW inverter output handles heavy loads (appliances, tools, HVAC), making it versatile for homes, cabins, or remote installations.
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Ready for real-world demands — Solid battery chemistry and robust BMS ensure deep‑cycle durability and stable power delivery, even under demanding or fluctuating load conditions.
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Simplifies system design — As a packaged solution, it reduces complexity, wiring, and compatibility issues — a convenient way to deploy a complete off‑grid power system with minimal configuration.
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Scalable & future‑proof — The system can be expanded or paired with solar, generators, or additional modules, allowing users to grow their setup as needs evolve.
Q&A
Q: What is the BigBattery 12 kW 20.4 kWh ETHOS Off‑Grid Power System (K0710)?
A: A complete off-grid system combining a 48 V lithium battery bank with a 12 kW inverter, designed for whole-home, cabin, or backup solar + storage power without relying on the grid.
Q: What does “20.4 kWh” refer to?
A: The total usable energy storage capacity of the battery bank, providing extended off-grid operation or reliable backup during outages.
Q: What are the key design and safety features?
A: LiFePO₄ chemistry, IP65-rated weather-resistant enclosure, advanced BMS with cell balancing, and an integrated internal fire-suppression system for safety and long-term reliability.
Q: What kind of inverter and capabilities are included?
A: A split-phase 12 kW inverter supporting household AC loads, solar PV input via MPPT, seamless switching between solar/battery and grid or generator power, and compatibility with large PV arrays.
Q: What types of users or setups is this system best for?
A: Tiny homes, cabins, off-grid residences, remote homesteads, backup-power installations, and other structures needing robust solar + battery storage.
Q: What are the main benefits compared with simpler battery setups or lead-acid systems?
A: Higher usable energy, maintenance-free operation, safer LiFePO₄ chemistry, longer lifespan, compact modular design, and integrated off-grid or backup functionality.
Q: Is the system scalable or modular?
A: Yes, additional ETHOS battery modules can be added to expand storage capacity and increase backup duration.
Maintenance Tips
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Install the ETHOS system in a cool, dry, and well-ventilated area to ensure optimal performance and prevent overheating.
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Regularly inspect all wiring, terminals, and connections for looseness, corrosion, or damage to maintain safe off-grid operation.
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Keep the system exterior clean and dust-free using a soft, dry cloth to avoid heat buildup.
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Avoid exposure to direct sunlight, moisture, and extreme temperatures to preserve internal components.
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Monitor battery state of charge and avoid deep discharges to maintain long-term capacity and efficiency.
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During extended periods of non-use, keep the system at 50–60% charge and disconnect from all loads and power sources.
