BigBattery 51.2V NEXUS 2 LiFePO4 Battery | 314Ah | 16kWh | Off-Grid Home Backup
BigBattery 51.2V NEXUS 2 LiFePO4 Battery | 314Ah | 16kWh | Off-Grid Home Backup
SKU: F-NXUS2-48161-G1
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PRODUCT DESCRIPTION
Description
BigBattery 51.2V NEXUS 2 LiFePO4 Battery | 314Ah | 16kWh | Off-Grid Home Backup
Product Description
The BigBattery NEXUS 2 is a 51.2V, 314Ah LiFePO4 battery designed for off-grid homes, cabins, commercial backup power, and emergency home power systems. Its indoor floor-standing design delivers 16.08kWh of usable energy without requiring wall mounting.
Built for scalable energy storage, the NEXUS 2 supports up to 15 batteries in parallel for as much as 240kWh of total capacity per inverter. An integrated Battery Management System, self-heating function, and aerosol fire-suppression system help provide dependable operation and enhanced protection.
- 16.08kWh of usable LiFePO4 energy storage
- 314Ah capacity and 7.6kW maximum continuous power
- Expandable to 15 batteries and up to 240kWh
- Integrated BMS protection against voltage, current, and temperature risks
- Self-heating function for cold-weather operation
- Integrated aerosol fire suppression
- RS485, RJ45, and CAN communication
- Compact indoor floor-standing installation
- Maintenance-free operation with no routine servicing required
- Compatible with existing KONG and GRIZ products purchased from 2019 through 2024
- Backed by a 12-year warranty and lifetime USA-based technical support
Product specifications and features are taken directly from the manufacturer’s product page.
Specifications
| Specification | Details |
|---|---|
| Model | NEXUS 2 16kWh |
| SKU | F-NXUS2-48161-G1 |
| GTIN/UPC | 00199874694771 |
| System voltage | 48V |
| Nominal voltage | 51.2V |
| Battery chemistry | LiFePO4 |
| Usable energy | 16.08kWh |
| Capacity | 314Ah |
| Cell configuration | 16S1P |
| Maximum continuous discharge current | 150A |
| Maximum continuous power | 7.6kW |
| Maximum peak discharge current | 270A for 1 second |
| Maximum charge current | 140A |
| Charging voltage range | 53.5V–57.6V |
| Operating voltage range | 48V–57.6V |
| Maximum charge voltage | 57.9V |
| Suggested low-voltage cutoff | 50.8V |
| Charging temperature range | 32°F to 113°F |
| Discharging temperature range | -4°F to 113°F |
| Optimal discharge temperature | 59°F to 95°F |
| Storage temperature at over 50% SOC | 1 month: -4°F to 113°F; 3 months: -4°F to 95°F; 6 months: -4°F to 77°F |
| Humidity range | 10%–95%, no condensation |
| Weight | Approximately 315 lbs. |
| Dimensions | 19.7 × 27.5 × 15.7 in. (500 × 700 × 400 mm) |
| Altitude limit | Less than 2,000 meters |
| Maximum parallel connections | 15 batteries, up to 240kWh |
| Communications | RS485, RJ45, and CAN |
| Protection rating | IP54 |
| Installation | Indoor floor-standing |
| Warranty | 12 years |
| Shipping origin | Texas, USA |
What's In The Box?
- BigBattery 51.2V NEXUS 2 LiFePO4 Battery, 314Ah, 16kWh
- Setup hardware
FAQs
How much usable energy does the NEXUS 2 provide?
The battery provides 16.08kWh of usable energy and has a capacity of 314Ah.
How many NEXUS 2 batteries can be connected in parallel?
Up to 15 units can be connected in parallel, providing as much as 240kWh of total capacity per inverter.
Does the NEXUS 2 include fire suppression?
Yes. It includes an integrated aerosol fire-suppression system for enhanced safety.
Can the battery operate in cold temperatures?
The battery has a self-heating function. Its listed charging temperature range is 32°F to 113°F, while its discharging temperature range is -4°F to 113°F.
Which inverters support communication with the NEXUS 2?
The page lists all BigBattery APEX inverters, EG4, GoodWe, Solis, Deye, PYLON, and Victron for off-grid, non-UL 9540 installations.
Variant Specs
The product page offers the following battery quantity configurations:
- Standard: One or two NEXUS 2 batteries
- Large: Three or four NEXUS 2 batteries
- Complex: Five or six NEXUS 2 batteries
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