Big Battery 12V HUSKY 2 – LiFePO4 – 400Ah – 5.12kWh
The Big Battery 12V HUSKY 2 is a high-capacity lithium iron phosphate (LiFePO₄) battery designed for demanding applications such as RVs, marine vessels, and off-grid systems. With a substantial 400Ah capacity and 5.12kWh of energy storage, it offers reliable power in a compact form factor. Equipped with advanced features like an IP65-rated enclosure, self-heating function, and comprehensive communication protocols (CANBus/RS485), the HUSKY 2 ensures performance and safety in various environments.
BigBattery 12V HUSKY 2 – LiFePO₄ – 400Ah – 5.12kWh Features
High-Capacity Energy Storage
Delivers 5.12kWh of energy with a 400Ah capacity, suitable for extended off-grid use.
Advanced Battery Management System (BMS)
Features auto-cell balancing and protection mechanisms to enhance battery lifespan and safety.
Self-Heating Function
Enables charging in cold environments by maintaining optimal battery temperature.
Robust Enclosure
IP65-rated, vibration-resistant casing ensures durability in harsh conditions.
Comprehensive Communication Protocols
Supports CANBus and RS485 for seamless integration with various systems.
BigBattery 12V HUSKY 2 – LiFePO₄ – 400Ah – 5.12kWh Applications
- Recreational Vehicles (RVs) Provides reliable power for appliances and electronics during travel.
- Marine Vessels Powers onboard systems with resilience to marine environments.
- Off-Grid Systems Ideal for cabins or remote locations lacking grid access.
- Backup Power Serves as an emergency power source during outages.
- Solar Energy Storage Stores excess solar energy for use during non-sunny periods.
What's Included
Everything you need is included with your product.
- 2 × HUSKY 2 Carrying Handle
- 2 × L Mounting Bracket
- 2 × M8 Screws
- 1 × Red & Black Terminal Rubber Cover
- 1 × 2AWG 3FT Red & Black Ring to Ring Terminal Cables (CBL086)
BigBattery 12V HUSKY 2 – LiFePO₄ – 400Ah – 5.12kWh Specifications
| Category | Specifications |
| SKU | FHSKY-12051-G2 |
| System Voltage: | 24V |
| Nominal Voltage: | 12.8V |
| Chemistry: | LiFePO4 |
| kWh Capacity: | 5.12kWh |
| Ah Capacity: | 400Ah |
| Charging Voltage Range: | 13.9V - 14V |
| Max Charge Voltage: | 14.4V |
| Operating Voltage Range: | 12V - 14.4V |
| Suggested Low Voltage Cutoff: | 12V - 12.7V |
| BMS Cutoff Range: | 10.5V - 11.75V |
| Cell Configuration: | 4S |
| Max Continuous Discharge Current: | 300A |
| Max Continuous Power: | 5120W |
| Max Discharge Peak Current: | 350A (Max 5 seconds) |
| Max Charge Current: | 200A |
| Charge Temperature Range: | -4°F - 113°F (-20°C - 45°C) |
| Discharge Temperature Range: | -4°F - 131°F (-20°C - 55°C) |
| Optimal Discharge Temperature Range: | 59°F - 95°F (15°C - 35°C) |
| Storage Temperature Range: | -4°F - 113°F (-20°C - 45°C) (Max 6 months) |
| Weight | 95 lb (43.1 kg) |
| Depth | 12.6 in (320 mm) |
| Width | 18.1 in (460 mm) |
| Height | 9.8 in (249 mm) |
| Max Connections: | Up to (16) Parallel |
| Protection Rating: | IP65 / NEMA 4X |
| Communications: | CANBus / RS485 |
| Self-Heating: | Yes |
Frequently-Asked Questions
What communication protocols does the HUSKY 2 support?
The HUSKY 2 supports CANBus and RS485, allowing integration with smart inverters, BMS monitors, and other communication-enabled devices.
Can I use the HUSKY 2 battery for marine applications?
Yes, the IP65-rated enclosure provides water and dust resistance, making it suitable for marine and coastal environments.
How long does the HUSKY 2 battery last?
With a life cycle of over 3500 cycles at 80% depth of discharge (DoD), it can last 10–12 years or more under typical use conditions.
Does the battery include mounting hardware?
Yes, the package includes L mounting brackets, screws, and carrying handles to simplify secure installation.
Can this battery be monitored remotely?
Yes, via its CANBus/RS485 ports, the battery can be monitored using compatible third-party systems or integrated solar inverters with BMS display functionality.