12-Year Warranty
Full Battery Coverage
Everything You Need, Included
Your complete 12V kit
4× 12V HUSKY 2 INV Lithium Battery 5.12kWh 400Ah
3× 4AWG (Black and Red) 21 inches Ring to Ring Terminal Cable- 12-Year Warranty
- U.S. Support
- LiFePO₄ Safety
12V 4X HUSKY 2 KIT
Choose Your Inverter Option*
Converts battery power to usable electricity.
Choose Your Battery Option*
Stores your energy for when you need it.
Choose Your Inverter Option*
Converts battery power to usable electricity.
BigBattery APEX-6.5K Off-Grid Inverter
EG4 6000XP (8kPV) OFF-GRID INVERTER
EG4 12000XP V2 OFF-GRID INVERTER
Victron MultiPlus-II 48/5000/70-95 120V
Victron MultiPlus-II 48/3000/35-50 120V (UL 1741)
EG4 18kPV All-in-One Hybrid Solar Inverter
EG4 FlexBOSS18 Hybrid Solar Inverter
EG4 FlexBOSS21 Hybrid Solar Inverter
NoneI already have an inverter Choose Your Battery Option*
Stores your energy for when you need it.
Items Included
Available For Backorder - Estimated To Ship By Mid October 2026
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Documents & Certifications
About this item
The 12V 4× HUSKY 2 INV Lithium Battery Kit is a maximum-capacity energy solution designed for RVs, camper vans, marine systems, and high-demand off-grid applications. Combining four 12V 5.12kWh HUSKY 2 LiFePO₄ INV batteries (20.48kWh total), this system delivers exceptional runtime, power, and reliability for extended and continuous use.
Built with Tier 1 LiFePO₄ cells, the HUSKY 2 batteries provide stable, high-efficiency energy with zero maintenance. The integrated advanced Battery Management System (BMS) ensures protection against overcharge, over-discharge, short circuit, and temperature extremes – delivering safe, consistent performance in all environments.
Designed for seamless system integration, the INV version includes inverter communication capability, enabling optimized coordination with compatible inverter systems. With IP65-rated enclosures, vibration-resistant construction, and built-in self-heating, this system performs reliably in rugged and cold-weather conditions.
With HUSKY app remote monitoring, users can track battery performance in real time, making this kit a smart, durable solution for mobile living, marine adventures, and off-grid power systems.
Ships From: Texas, USA
Warranty: 12 Years
Support: Lifetime USA-Based Tech Support
Compatibility
Integrated System:
- 4× HUSKY 2 INV 12V LiFePO₄ Batteries
System Compatibility:
- Designed for 12V inverter-based systems
- Compatible with supported inverter setups via communication protocols
- Ideal for RV, van, marine, and off-grid applications requiring maximum capacity
- Suitable for trolling motors and extended runtime systems
Key Features
- 20.48kWh Total LiFePO₄ CapacityMaximum runtime for high-demand applications
- Inverter Communication (INV Version)Optimized integration with compatible inverter systems
- Tier 1 Lithium CellsSafe, stable, and long-lasting battery chemistry
- Advanced BMS ProtectionMulti-layer safety for voltage, current, and temperature
- IP65-Rated EnclosureBuilt for dust and water resistance
- Self-Heating FunctionReliable performance in cold climates
- Vibration-Resistant DesignIdeal for mobile and marine environments
- HUSKY App MonitoringReal-time battery tracking and remote access
- Deep-Cycle PerformanceBuilt for consistent daily use
- Scalable High-Capacity DesignIdeal for extended off-grid systems
- Maintenance-Free OperationNo routine servicing required
- Long Cycle LifeDesigned for years of dependable performance
A maximum-capacity lithium battery system built for extended runtime, durability, and reliable power in the most demanding mobile and off-grid applications.
Designed For 12V Applications
- LEAD ACID REPLACEMENT
- CLASS A, B, & C RVs
- CAMPER VANS
- TOW-BEHIND TRAILERS
- MARINE SYSTEMS
- BOATS & YACHTS
- COMMERCIAL VEHICLES
- FOOD TRUCKS
- EMERGENCY BACKUP
- LIGHT TOWERS & SIGNS
Battery Downloads
DOWNLOADDOWNLOADDOWNLOAD
GO TO LINKGO TO LINKBattery Specifications
Designed For 12V Applications
- LEAD ACID REPLACEMENT
- CLASS A, B, & C RVs
- CAMPER VANS
- TOW-BEHIND TRAILERS
- MARINE SYSTEMS
- BOATS & YACHTS
- COMMERCIAL VEHICLES
- FOOD TRUCKS
- EMERGENCY BACKUP
- LIGHT TOWERS & SIGNS
Battery Downloads
DOWNLOADDOWNLOADDOWNLOADGO TO LINKGO TO LINKBattery Specifications
Frequently Asked Questions
How much battery do I need to go fully off-grid?
Fully off-grid homes typically need 20kWh to 40kWh depending on heating, water and cooking. The 4x Husky 2 kit delivers 20.48kWh, which covers a household using around 7kWh a day for roughly three days without sun. If you heat or cook with electricity, plan for more.
What is the biggest 12V battery bank I can build?
The Husky 2 supports up to 16 units in parallel, so the ceiling at 12V is 6,400Ah and 81.9kWh. In practice, most builders move to 24V or 48V well before that, because current and cable size become the limiting factor. The 4x kit at 1,600Ah is around the point where that decision matters.
How many batteries do I need for a homestead solar system?
Homesteads running a well pump, freezers, workshop tools and lighting usually land between 20kWh and 30kWh. Four Husky 2 batteries at 20.48kWh and 1,000A continuous discharge handles well pump startup surge and simultaneous heavy loads that smaller banks struggle with.
Is a 20kWh bank enough for a whole house?
For a house with gas heat, gas water heating and no air conditioning, yes. For an all-electric home, 20.48kWh covers essential loads through an outage but not unrestricted use. Most whole-home builds at this capacity prioritise circuits rather than backing up the entire panel.
Can I add more batteries to this kit later?
Yes. The Husky 2 parallels up to 16 units, so you can expand beyond four at any point. Add batteries of the same model, bring them to a similar state of charge before connecting, and use a parallel busbar so cable runs stay equal and current shares evenly across the bank.
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12V 4X HUSKY 2 KIT
