Big Battery 12V 4X HUSKY 2 KIT - K0749
SECOND GENERATION POWER STORAGE IS HERE! The 12V 20.48kWh LiFePO4 HUSKY 2 Kit is the latest and greatest from BigBattery, providing unmatched reliability and efficiency for your RV, camper vans, trolling motors, and other marine applications.
The HUSKY 2 is our most energy-dense 12V solution to date, designed to power your adventures no matter how far they take you. 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. 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 casing, and equipped with an advanced BMS capable of auto-balancing cells, but it also boasts a self-heating function to ensure you have reliable power through every winter excursion. Plus, the HUSKY 2 features full CANBus and RS485 communication protocols so you can always monitor the status and performance of your power.
Our HUSKY 2 Kit was designed to serve as a plug-and-play solution for your adventure vehicles and aquatic vessels, and comes with all cables and components included for a quick and easy installation, all while requiring zero maintenance. Equipped with the HUSKY 2, you’ll be powered and prepared to hit the road, or the water, worry-free every time. Shop the all-new 12V HUSKY 2 Kit today!
IncludedÂ
- 4 × 12V HUSKY 2 - LiFePO4 - 400Ah - 5.12kWh
- 3 × 4AWG (Black and Red) 21 inches Ring to Ring Terminal Cable
What our Experts Think
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Very Large Energy Storage: Four HUSKY 2 batteries provide substantial total capacity — ideal for long runtimes in off-grid, marine, RV, or backup power systems.
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LiFePOâ‚„ Chemistry: Safer, longer-lasting, and maintenance-free; stable performance, thermal stability, and no acid maintenance.
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High Current & Load Capacity: Supports heavy loads such as inverters, pumps, appliances, or tools without significant voltage sag.
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Durable, Rugged Design: Built to withstand harsh conditions, vibration, and moisture — suitable for marine or mobile applications.
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Scalable & Versatile: Modular setup allows parallel expansion and fits a wide range of 12V systems including solar storage, RVs, campers, and backup power.
Q&A
Q: What is the Big Battery 12V 4X HUSKY 2 Kit used for?
A: Designed for 12V off-grid, RV, marine, and backup power systems, providing high-capacity, reliable LiFePO4 energy.
Q: What is included in the kit?
A: Includes four 12V HUSKY 2 batteries, delivering extended runtime and stable performance for demanding 12V applications.
Q: What battery chemistry does it use?
A: Uses LiFePO4 cells, offering long cycle life, high efficiency, and enhanced safety.
Q: Does it include a BMS?
A: Yes, each battery features a built-in Battery Management System for overcharge, over-discharge, and thermal protection.
Q: Is it compatible with standard 12V systems?
A: Yes, fully compatible with 12V inverters, solar setups, and backup systems.
Q: How long will the batteries last?
A: LiFePO4 chemistry ensures thousands of cycles, providing years of reliable operation.
Q: Why choose the HUSKY 2 4X Kit?
A: Popular for its high capacity, long lifespan, robust performance, and safe operation in 12V applications.
Maintenance Tips
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Inspect connections: Check all terminals and cables regularly for tightness, corrosion, or dust buildup.
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Charge properly: Use the recommended charger and avoid deep discharges below 20–30% to maximize battery life.
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Monitor battery health: Use BMS indicators or monitoring tools to detect voltage irregularities, temperature alerts, or error codes.
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Keep batteries clean and dry: Wipe surfaces and terminals to prevent corrosion and dust accumulation.
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Balance charge periodically: Perform a full balance charge every 1–2 months for optimal performance.
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Environmental care: Store and operate in a cool, dry, ventilated area; avoid direct sunlight, moisture, or extreme temperatures.
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Avoid overloads: Do not exceed rated load capacity to protect batteries and ensure safe operation.
