Big Battery 48V HUSKY 2 - LiFePO4 - 100Ah - 5.12kWh
The BigBattery 48V HUSKY 2 is a compact, high-performance energy storage solution built for solar systems, off-grid cabins, backup power, and electric vehicles. Delivering 5.12kWh of reliable lithium power and 100Ah capacity, this battery uses Tier 1 LiFePO4 cells, integrated Smart BMS protection, and is rated for 6,000+ cycles at 80% DoD. Whether you're upgrading from lead-acid or building a custom energy system, the HUSKY 2 provides powerful performance with zero maintenance and a 10-year lifespan.
BigBattery 48V HUSKY 2 – LiFePO4 – 100Ah – 5.12kWh Features
High Energy Output – Delivers 5.12kWh of energy at 48V, ideal for large appliances, off-grid systems, and high-load devices.
Long-Lasting LiFePO4 Cells – Built with Tier 1 lithium iron phosphate chemistry, offering 6,000+ cycles at 80% Depth of Discharge (DoD).
Smart Battery Management System (BMS) – Monitors and protects against overcharge, over-discharge, short circuit, and thermal events.
Compact & Powerful – Packs high capacity into a space-saving design that’s easy to integrate into your home or mobile setup.
Fast Discharge Capability – Supports a continuous discharge rate of 100A, powering demanding inverters and devices with ease.
No Maintenance Required – No watering, no venting, and no acid—just clean, efficient, plug-and-play power.
BigBattery 48V HUSKY 2 – LiFePO4 – 100Ah – 5.12kWh Applications
- Residential Solar Storage – Store excess solar power for night use or grid outages.
- Off-Grid Cabins & Tiny Homes – Power lights, appliances, and tools completely off-grid.
- RV & Van Conversions – High-capacity energy for off-grid living and travel.
- Commercial Backup Systems – Provide energy security for offices, workstations, or tools.
- Home Emergency Power – Maintain essential devices and appliances during outages.
- Electric Vehicles & Conversions – Upgrade your EV or DIY build with reliable lithium power.
- Lead-Acid Replacement – Modern, low-maintenance alternative with more power and longevity
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)
- User Manual
BigBattery 48V HUSKY 2 – LiFePO4 – 100Ah – 5.12kWh Specifications
| Category | Specifications |
| SKU | FHSKY-48051-G2 |
| UPC | 850061252296 |
| System Voltage: | 48V |
| Nominal Voltage: | 51.2V |
| Chemistry: | LiFePO4 |
| kWh Capacity: | 5.12kWh |
| Ah Capacity: | 100Ah |
| Charging Voltage Range: | 55.6 - 57V |
| Max Charge Voltage: | 58.8V |
| Operating Voltage Range: | 48 – 57V |
| Suggested Low Voltage Cutoff: | 48 – 50.8V |
| BMS Cutoff Range: | 42 - 47V |
| Cell Configuration: | 16S |
| Max Continuous Discharge Current: | 150A |
| Recommended Continuous Discharge Current: | 100A |
| Max Continuous Power: | 7500W |
| Recommended Continuous Power: | 4000W |
| Max Discharge Peak Current: | 225A (Max 5 seconds) |
| Max Charge Current: | 100A |
| Charge Temperature Range: | -4°F - 113°F (-20°C - 45°C) |
| Discharge Temperature Range: | -4°F - 122°F (-20°C - 50°C) |
| Optimal Discharge Temperature Range: | 59°F - 95°F (15°C - 35°C) |
| Storage Temperature Range: | -4°F - 122°F (-20°C - 50°C) (Max 6 months) |
| Weight | 100 lb (45.4 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 (Parallel only) |
| Self-Heating | Yes |
BigBattery 48V HUSKY 2 – LiFePO4 – 100Ah – 5.12kWh Videos
Frequently-Asked Questions
Can I use this battery with my 48V solar inverter?
Yes. The HUSKY 2 is fully compatible with most 48V inverters and charge controllers. Make sure your system supports lithium battery charging profiles.
Can I connect multiple HUSKY 2 units together?
Absolutely. You can connect in parallel for more capacity or consult BigBattery for advanced configurations.
Is this a good lead-acid battery replacement?
Yes. It’s a drop-in lithium upgrade offering longer lifespan, higher efficiency, and no maintenance.
Is the battery weatherproof?
Yes. With an IP65 rating, it's protected against dust and low-pressure water spray. Great for outdoor or semi-exposed installations.