Description
Description
Early September
BigBattery 12V HUSKY 2 INV Lithium Battery | 400Ah 5.12kWh LiFePO4 | Inverter Comms | RV, Marine & Off-Grid
Product Description
The BigBattery 12V HUSKY 2 INV is a 400Ah, 5.12kWh LiFePO4 deep-cycle lithium battery engineered for serious mobile and off-grid power applications. Built on Tier 1 lithium iron phosphate cells with full inverter communication capability, it integrates directly with compatible 12V AIMS and Victron inverter systems for smarter, more efficient energy management — right out of the box.
Why the HUSKY 2 INV Belongs in Your Build:
- 5.12kWh / 400Ah LiFePO4 Capacity — High-capacity, deep-cycle energy storage engineered for extended runtime in demanding applications
- Inverter Communication (CANBus / RS485) — Closed-loop communication with compatible 12V AIMS and Victron inverter systems for optimized performance and control
- Advanced BMS Protection — Multi-layer safeguards against overcharge, over-discharge, short circuit, and temperature extremes for safe, consistent operation
- IP65 / NEMA 4X Rated Enclosure — Dust-tight and water-resistant housing built to handle harsh outdoor and marine environments
- Built-In Self-Heating — Reliable performance down to -4°F (-20°C), ideal for cold-weather and all-season deployments
- Vibration-Resistant Construction — Engineered for the rigors of mobile, marine, and RV applications
- HUSKY App Monitoring — Real-time battery status and performance tracking via iOS and Android app
- Up to 16 Batteries in Parallel — Scalable energy storage for larger off-grid and backup power systems
- Maintenance-Free Operation — No watering, no servicing, no hassle
- 12-Year Warranty — Full battery coverage backed by lifetime USA-based tech support
- Ships from Texas, USA
Designed for: Lead acid replacement, Class A/B/C RVs, camper vans, tow-behind trailers, marine systems, boats and yachts, commercial vehicles, food trucks, emergency backup, and light towers and signs.
Specifications
| Specification | Value |
|---|---|
| SKU | FHSKY-12051-G2-INV |
| GTIN/UPC | 00199874819792 |
| Chemistry | LiFePO4 (Lithium Iron Phosphate) |
| System Voltage | 12V |
| Nominal Voltage | 12.8V |
| Capacity (kWh) | 5.12 kWh |
| Capacity (Ah) | 400Ah |
| Cell Configuration | 4S |
| 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 |
| Max Continuous Discharge Current | 250A |
| Max Continuous Power | 5,120W |
| Max Discharge Peak Current | 500A (max 3 seconds) |
| Max Charge Current | 200A |
| Charge Temperature Range | -4°F to 113°F (-20°C to 45°C) |
| Discharge Temperature Range | -4°F to 131°F (-20°C to 55°C) |
| Optimal Discharge Temperature | 59°F to 95°F (15°C to 35°C) |
| Storage Temperature Range | -4°F to 113°F (-20°C to 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 Parallel Connections | Up to 16 batteries |
| Protection Rating | IP65 / NEMA 4X |
| Communications | CANBus / RS485 |
| Self-Heating | Yes |
| Warranty | 12 Years |
| Ships From | Texas, USA |
| Support | Lifetime USA-Based Tech Support |
What’s In The Box?
- 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)
FAQs
Q: What inverter systems is the HUSKY 2 INV compatible with? A: The HUSKY 2 INV is compatible with 12V AIMS and Victron MultiPlus II inverter systems via closed-loop CANBus and RS485 communication protocols.
Q: Can I connect multiple HUSKY 2 INV batteries together? A: Yes. The HUSKY 2 INV supports up to 16 batteries in parallel, allowing you to scale your energy storage system as your power needs grow.
Q: Does this battery work in cold weather? A: Yes. The HUSKY 2 INV features a built-in self-heating function that enables reliable operation down to -4°F (-20°C), making it suitable for cold-climate and all-season use.
Q: How do I monitor the battery’s performance? A: The HUSKY 2 INV supports remote monitoring via the HUSKY app, available on both iOS and Android, providing real-time battery status and performance data.
Q: What is the warranty on this battery? A: The HUSKY 2 INV is backed by a 12-year warranty with full battery coverage, plus lifetime USA-based tech support.
