BigBattery
SKU: F-NXUS2-48161-G1
BigBattery NEXUS 2 51.2V 16kWh LiFePO4 Battery
The BigBattery NEXUS 2 is a high-capacity 51.2V 16kWh LiFePO4 energy storage system engineered for dependable home backup and off-grid performance.
- Regular price
- $2,990.00
- Sale price
- $2,990.00
- Regular price
-
Questions before you buy?
Call 877-242-2792 and we’ll work it out with you. Mon–Thu 10am–5:30pm, Fri 10am–1pm EST.
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The details.
The BigBattery NEXUS 2 is a high-capacity 51.2V 16kWh LiFePO4 energy storage system engineered for dependable home backup and off-grid performance. Featuring a durable floor-standing design with built-in self-heating and integrated aerosol fire suppression, this unit delivers robust operation in demanding conditions.
Equipped with 314Ah capacity, multi-layer BMS protection, and flexible parallel expansion up to 15 units, it provides scalable, uninterrupted power for cabins, sheds, and whole-home setups.
Key Features
| Brand | BigBattery |
| Model | NEXUS 2 |
| SKU | F-NXUS2-48161-G1 |
| GTIN/UPC | 00199874694771 |
| Chemistry | LiFePO4 |
| Nominal Voltage | 51.2V |
| System Voltage | 48V |
| Capacity | 314Ah |
| Usable Energy | 16.08kWh |
| Cell Configuration | 16S1P |
| Max Continuous Discharge Current | 150A |
| Max Continuous Power | 7.6kW |
| Max Discharge Peak Current | 270A (1s) |
| Max Charge Current | 140A |
| Charging Voltage Range | 53.5V–57.6V |
| Operating Voltage Range | 48V–57.6V |
| Max Charge Voltage | 57.9V |
| Suggested Low Voltage Cutoff | 50.8V |
| Charge Temperature Range | 32°F to 113°F |
| Discharge Temperature Range | -4°F to 113°F |
| Optimal Discharge Temperature | 59°F to 95°F |
| Humidity Range | 10%–95% (No Condensation) |
| Max Connections | 15 in parallel (up to 225kWh) |
| Communications | RS485 / RJ45 / CAN |
| Protection Rating | IP54 |
| Installation | Indoor Floor-standing |
| Dimensions (W x H x D) | 19.7 x 27.5 x 15.7 in |
| Weight | 315 lbs |
Highlights
- 16kWh LiFePO₄ Battery Module – Safe, high-capacity lithium storage with long lifespan
- 8,000+ Cycle Life – Built for years of daily use and long-term savings
- Advanced BMS Protection – Multi-layer protection against voltage, current, and temperature risks
- Self-Heating Function – Reliable performance in cold climates
- Integrated Thermal Suppression – Built-in aerosol system for enhanced safety
- Modular Expansion – Scale from 16kWh up to 241kWh as needed
- Compact Floor-Standing Design – Easy placement without wall mounting
- Maintenance-Free Operation – No routine servicing required
Compatibility
Communication of Inverters list (Off Grid Non-UL 9540 Installs)
- APEX Inverters
- EG4
- GoodWe
- Solis
- Deye
- PYLON
- Victron
Warranty
Batteries are backed by a 12-year manufacturer's warranty, providing long-term performance. Designed for durability and engineered to last, the batteries are built to power setups for over a decade.
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Frequently asked questions
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